Condition Analysis
AI-powered assessment using site data and 14-day weather history
The last significant rain was 7.2mm on May 3rd, followed by three mostly dry days with moderate temperatures — the south aspect and partial wind exposure have aided drying, but scattered trace precipitation (0.4mm on May 5th, 0.2mm today) and average humidity around 75% mean internal moisture may linger. Conditions are borderline and a careful on-site assessment is essential before committing to climb today, with rain forecast from tomorrow making the coming days unsuitable.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill is on private land — you must ask permission at Berryhill Farm before climbing, and park on the farm lane ~50m past the cottages; failure to do so jeopardises access for everyone.
- The south-facing aspect receives good solar radiation which significantly aids drying, but the free-standing boulders and approach walls may have different micro-aspects that dry at different rates.
- The crag's popularity with developing leaders means many routes are lower-grade slabs and walls where friction-dependent footwork makes even slight residual dampness a serious safety concern.
- After the 7.2mm on May 3rd and intermittent trace precipitation since, base sections and any moss-covered or shaded patches may still hold internal moisture despite surface-dry appearance.
Warnings
2
- Rain is forecast from tomorrow through May 12th with significant falls on May 9th (8.7mm) and May 11th (10.3mm) — do not plan climbing trips for the coming days.
- Remember to ask permission at Berryhill Farm before climbing; access is permissive and depends on good relations with the landowner.
Reasoning
The 7.2mm event on May 3rd was the most significant recent rainfall, with only three full dry days since (May 4th, 6th partly) — given Fell Sandstone's rapid absorption and slow internal drying, some residual internal moisture likely remains especially at the base and in sheltered sections.
The south aspect and moderate southerly/westerly winds since May 4th have aided evaporative drying, with temperatures reaching 9–16°C, but humidity averaging 75% and trace precipitation on May 5th and today have slowed the drying process below optimal.
With only ~3.5 days of effective drying since the 7.2mm event and humidity remaining moderate-to-high, there is a realistic risk that iron oxide cemented holds — especially on lower sections — retain enough internal moisture to be weakened.
Early May in Northumberland brings improving but still unsettled conditions; the overnight frost on May 6th (-0.9°C) following recent rain introduces minor freeze-thaw concern, though a single cycle at this saturation level is unlikely to cause significant damage.
Contributing Factors
6
Three and a half days have elapsed since the 7.2mm rainfall on May 3rd, with the south aspect and moderate wind aiding surface drying.
Small amounts on May 5th (0.4mm) and today (0.2mm forecast late evening) repeatedly refresh surface moisture and slow internal drying.
Average humidity of 75% over the past week limits evaporative drying capacity despite reasonable temperatures.
The south aspect maximises solar radiation during lengthening May days, significantly accelerating surface and near-surface drying.
2.4mm forecast tomorrow and 8.7mm on May 9th will reset drying progress entirely, followed by 10.3mm on May 11th.
The overnight low of -0.9°C on May 6th following recent rain could have caused minor freeze-thaw stress in any still-saturated pores.
Recommendations
3
- If climbing today, go in the early-to-mid afternoon window (12:00–17:00) when solar heating is strongest and humidity is lowest (~50%), and visually and physically check the rock is bone-dry before pulling on.
- Test the base of the crag and any shaded or mossy sections — if the ground at the base is damp or the rock darkens when touched, do not climb.
- Plan to be off the crag before 22:00 when light rain is forecast, and be aware the next reliable dry window is unlikely before mid-May at the earliest given the incoming unsettled spell.
Previous Analyses
Marginal — Assess Conditions
62%
2 days ago
The last significant rain was 7.2mm on May 3rd, followed by a dry day (May 4th), a trace 0.4mm on May 5th, and today (May 6th) is dry with low humidity and a south-east breeze — giving roughly 2 days of drying since meaningful rainfall. The south aspect and moderate wind help, but temperatures have been cool and humidity has been moderate, so internal moisture may linger; a visual check on arrival is warranted.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill is on private land — you must ask permission at Berryhill Farm before climbing, and park on the farm lane ~50m past the cottages; failure to do so risks permanent access loss.
- The free-standing boulders and approach walls may dry at different rates to the main crag; lower sections and sheltered areas behind boulders will hold moisture longer.
- Overnight frost on May 6th (down to -2.4°C) following recent rain introduces a minor freeze-thaw concern for any rock that retained internal moisture from the May 3rd event.
- A major wet spell is forecast from May 9th onward (13mm + 29.7mm), so today and possibly tomorrow represent the last viable climbing window for potentially a week or more.
Warnings
2
- Overnight frost to -2.4°C may have caused ice expansion in any internally damp rock — test holds carefully, especially flakes and edges.
- A prolonged wet spell begins May 9th with potentially 43mm+ over two days; conditions will be unsafe for climbing for many days afterwards.
Reasoning
The 7.2mm rainfall on May 3rd was the most significant recent event; with ~2.5 days of drying since (including one fully dry day, one trace day, and today), the south-facing rock surface should be largely dry but internal moisture may persist given cool average temperatures (~10°C) and moderate humidity (~75%).
The south aspect receives good solar radiation and today's low humidity (43-50% midday) with a building SE breeze (~15-18 km/h) provides favourable drying conditions, though the preceding days were cool (8-15°C) with moderate humidity, limiting cumulative drying progress.
Moderate structural risk — 7.2mm on May 3rd could have driven moisture into the porous Fell Sandstone, and the overnight frost to -2.4°C today may have caused minor freeze-thaw stress in any still-saturated pores, though the brief single cycle is unlikely to cause significant damage.
Early May in Northumberland brings improving but inconsistent conditions; overnight frosts are still possible and the forecast heavy rain from May 9th-10th will reset drying progress entirely.
Contributing Factors
6
7.2mm fell on May 3rd and only ~2.5 dry days have elapsed, which is borderline for the recommended 48-72 hour minimum drying period after moderate rain on Fell Sandstone.
The south-facing aspect receives direct solar radiation through the day, significantly accelerating surface and near-surface drying compared to north-facing Fell Sandstone crags.
Midday humidity dropping to 43-45% with a building SE breeze of 15-18 km/h creates excellent evaporative conditions for the afternoon session.
Average temperatures over the past week (~8.6°C) have been relatively cool for May, slowing the overall rate of moisture evaporation from the rock interior.
The overnight low of -2.4°C following recent rain creates a minor freeze-thaw concern, though a single brief cycle at moderate saturation is unlikely to cause major structural damage.
Heavy rain forecast for May 9-10th (42.7mm combined) does not affect today's conditions but means this is effectively the last climbing window for a considerable period.
Recommendations
3
- If climbing today, visually inspect the rock surface and check that the ground at the crag base is sandy-dry rather than damp — if it's moist, the rock is still too wet internally.
- Focus on the upper and more exposed sections of the main crag which will have dried fastest; avoid lower walls, sheltered alcoves, and any sections showing dark patches or seepage.
- Remember to ask permission at Berryhill Farm before climbing — this is private land and continued access depends on courteous behaviour.
Marginal — Assess Conditions
60%
3 days ago
The most significant recent rain was 7.2mm on May 3rd, followed by a full dry day on May 4th with good drying conditions (up to 15°C, low humidity in the afternoon, moderate wind). Today (May 5th) is essentially dry with only a trace 0.1mm, but temperatures are cool (7–9°C) and humidity moderate. The south aspect and wind help, but only ~36 hours have elapsed since meaningful rain on porous Fell Sandstone, which is borderline for the recommended 48–72 hour drying period after moderate rainfall.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill is on private land — climbers must ask permission at Berryhill Farm before every visit or risk losing access for everyone.
- The south-facing aspect received good solar radiation through May 4th's afternoon clearing, which significantly aided drying of the main crag face, though the free-standing boulders and approach walls may have less favourable aspects.
- The 7.2mm rainfall on May 3rd came with 93% humidity and cool 8.9°C temperatures, meaning the rock absorbed water under near-worst-case conditions with minimal same-day drying.
- Earlier intermittent light precipitation through mid-to-late April (small amounts on Apr 21, 26, 27, and May 1) means background moisture levels in the sandstone may be elevated beyond what the May 3rd event alone would suggest.
Warnings
2
- Fell Sandstone loses up to 50% of its compressive strength when wet — holds that feel dry on the surface may still be weakened internally after only 36 hours of drying.
- Overnight frost forecast for May 6th (-1.7°C) could cause freeze-thaw damage to any rock still holding internal moisture from the May 3rd rainfall.
Reasoning
The 7.2mm rain on May 3rd under 93% humidity would have significantly saturated the porous Fell Sandstone, and the cumulative 8.0mm over the last 7 days with intermittent light showers means internal moisture levels are likely still elevated.
May 4th provided excellent afternoon drying (15°C, humidity dropping to 42%, moderate westerly wind on a south-facing crag), giving roughly 24–30 hours of effective drying, but the community standard calls for 48+ hours after moderate rain and today's cooler northerly conditions are less favourable for continued drying.
With only ~36 hours since 7.2mm of rain and background moisture from April's frequent light showers, there is a meaningful risk that holds — particularly iron oxide features — remain weakened internally even if surfaces appear dry.
Early May in Northumberland brings improving but still cool conditions; the overnight frost forecast tonight (-1.7°C on May 6th) combined with residual internal moisture raises a minor freeze-thaw concern.
Contributing Factors
8
7.2mm fell on May 3rd under near-saturating humidity (93%), which is enough to significantly wet porous Fell Sandstone and requires 48–72 hours of drying.
Only approximately 36 hours have passed since the May 3rd rain, which is below the recommended 48-hour minimum for moderate rainfall on Fell Sandstone.
Yesterday afternoon saw temperatures reaching 15°C with humidity dropping to 42% and moderate westerly wind, providing several hours of very effective drying on the south-facing rock.
The south-facing main crag benefits from direct solar radiation through the day, which accelerates surface and near-surface drying relative to other aspects.
Today's maximum is only 9.3°C with northerly wind and full cloud cover, limiting evaporative drying compared to yesterday's much warmer afternoon.
Frequent light precipitation events through April (21.0mm over 28 days with many small events) mean the sandstone's background moisture level is likely elevated.
Wind speeds of 15–23 km/h today help move moist air from the rock surface, aiding continued evaporation despite the cooler temperatures.
Forecast minimum of -1.7°C tomorrow morning raises a minor freeze-thaw concern if internal moisture remains above the critical 60% saturation threshold.
Recommendations
3
- If visiting today, visually inspect the rock carefully — check the ground at the base of the crag is sandy-dry and test hold surfaces with a palm press before committing to any route.
- Focus on the upper, more exposed sections of the main south-facing crag which will have dried fastest; avoid lower sections, shaded areas, and any routes near seepage lines.
- Remember to ask permission at Berryhill Farm before climbing — this is a non-negotiable access requirement on private land.
Do Not Climb
35%
4 days ago
7.2mm of rain fell yesterday (May 3rd) in prolonged, saturating conditions with near-100% humidity, and only ~24 hours of drying have elapsed so far — insufficient for Fell Sandstone even with today's improving afternoon conditions. The rock is very likely still holding significant internal moisture despite what may appear to be a drying surface this afternoon.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Yesterday's 7.2mm rain fell steadily over many hours (03:00–12:00) at very high humidity (93–98%), maximising capillary absorption deep into the rock rather than running off.
- Berryhill's south aspect and partial wind exposure will help today's afternoon drying (humidity dropping to ~44% by 14:00), but this provides only half a day of useful evaporation — far short of the 48–72 hour guideline for heavy rain on Fell Sandstone.
- The free-standing boulders and approach walls may dry marginally faster than the main crag due to greater air circulation, but none should be considered safe this soon after saturation.
- Access requires permission from Berryhill Farm before climbing — visiting to check conditions without prior arrangement is itself a potential access issue on this private estate.
Warnings
2
- Yesterday's 7.2mm of prolonged rain at near-saturation humidity will have deeply penetrated the sandstone — surface dryness today does NOT indicate the rock is safe to climb.
- Iron oxide holds on Fell Sandstone are especially vulnerable to breakage when the rock is internally wet; damage is permanent and irreversible.
Reasoning
7.2mm of rain fell yesterday over ~10 hours at near-saturation humidity, meaning the rock absorbed water deeply; with only ~24 hours since rain ceased and high overnight humidity (93–95%), internal moisture levels remain dangerously high.
Today's afternoon brings improving conditions (humidity dropping to 44%, ~15 km/h wind, south-facing aspect receiving solar radiation), but this provides at most 8–10 hours of useful drying — well short of the 48–72 hours recommended after >5mm rainfall on Fell Sandstone.
Fell Sandstone loses 10–50% compressive strength when wet, and significant weakening begins at only ~1% saturation — the iron oxide holds that define Berryhill's routes are vulnerable to breakage at current moisture levels.
Early May in Northumberland offers reasonable but not strong drying potential; overnight temperatures near freezing (min 0.1°C on May 1st, forecast 1.4°C tomorrow) combined with residual moisture create a minor freeze-thaw concern.
Contributing Factors
6
7.2mm fell on May 3rd over many hours at 93% humidity, deeply saturating the porous Fell Sandstone.
Only ~24 hours have elapsed since rain, far short of the 48–72 hour minimum required after heavy rain on Fell Sandstone.
Humidity remained 91–95% overnight into this morning, preventing any meaningful evaporation during those hours.
Humidity drops to 44% by 14:00 with moderate SW wind and south-facing aspect receiving direct sun, which will accelerate surface drying.
21mm over the past 28 days with frequent small rain events means the rock has had limited opportunity to fully dry out at depth.
Berryhill's south-facing orientation at 90m altitude provides above-average solar drying potential when conditions allow.
Recommendations
3
- Do not climb today — the rock is almost certainly still wet internally despite any surface drying this afternoon.
- Wait at least until May 6th (two full dry days after yesterday's rain) before considering a visit, and verify the forecast remains dry.
- Remember to ask permission at Berryhill Farm before climbing — access is permissive on private land and must not be jeopardised.
Do Not Climb
92%
4 days ago
Berryhill received 7.6mm of rain today with 93% humidity, making conditions clearly unsuitable for climbing on Fell Sandstone. The rock will be saturated and requires a minimum of 48–72 hours of dry weather before climbing can be considered.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill's south aspect normally aids drying, but today's NE wind direction means the crag face is sheltered from the wind, significantly reducing drying potential.
- The free-standing boulders and approach walls may dry slightly faster than the main crag due to greater air circulation, but all areas will be thoroughly wet after 7.6mm today.
- Access is on private land — you must ask permission at Berryhill Farm before climbing; failure to do so risks losing access for everyone.
- The period from mid-April through early May has seen frequent light precipitation events (0.1–1.3mm every few days) keeping background moisture levels elevated in the rock, compounding today's heavier rainfall.
Warnings
3
- Climbing on wet Fell Sandstone causes permanent, irreversible damage to holds — the NMC 'Love the rocks' ethic is non-negotiable.
- The rock surface may appear dry before the interior has dried — do not rely on visual assessment alone; check that the ground at the base of the crag is completely sandy-dry.
- Overnight frost is possible (min forecast down to near 0°C on some nights) — if the rock is still damp internally, freeze-thaw cycles could cause additional structural damage.
Reasoning
With 7.6mm of rain today at 93% humidity, the rock is currently saturated or near-saturated, and the wetting front will have penetrated deeply into the porous Fell Sandstone.
Despite the south aspect, today's NE wind shelters the face and the very high humidity (93%) means virtually no net evaporation is occurring; drying cannot meaningfully begin until tomorrow when conditions improve.
Fell Sandstone loses 10–50% of its compressive strength when wet, and the iron oxide holds that climbers rely on are particularly vulnerable to grain loosening — climbing today would risk permanent hold breakage.
Spring conditions in early May with temperatures around 9°C and persistent high humidity mean drying will be slower than summer; the repeated light precipitation events over the past month have maintained elevated background moisture in the rock.
Contributing Factors
6
7.6mm of rain today is the heaviest single-day precipitation in the past month, thoroughly wetting the porous Fell Sandstone.
Humidity at 93% today effectively prevents any evaporative drying from the rock surface.
Today's NE wind shelters the south-facing crag, removing wind-assisted drying that would normally benefit this aspect.
Frequent light precipitation events over the past 2–3 weeks (8.4mm in the last 7 days alone) have kept the rock's internal moisture elevated.
The favourable south aspect will aid drying once the rain stops and humidity drops, but cannot help while rain is still falling and humidity is 93%.
Temperatures around 9°C are adequate for drying but not exceptional; they will not accelerate the process significantly.
Recommendations
3
- Do not climb today — the rock is wet and structurally compromised; wait for a sustained dry period.
- The earliest realistic opportunity to assess conditions is May 5th or later, but only if May 4th delivers a full dry day with good drying conditions.
- Always ask permission at Berryhill Farm before climbing and park on the farm lane approximately 50m past the cottages.
Do Not Climb
95%
4 days ago
Berryhill received 10.1mm of heavy rain today with 93% humidity and cool temperatures — the rock is currently saturated and completely unsuitable for climbing. The Fell Sandstone needs a minimum of 48–72 hours of dry weather to recover from this soaking, and the high humidity will slow drying considerably.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill's south aspect will help drying once the weather clears, but today's NE wind direction means the crag face is sheltered from the breeze, reducing surface evaporation.
- The approach walls and free-standing boulders may dry at different rates — lower boulders and sheltered alcoves will retain moisture longest, while upper sections of the main crag will dry first.
- Access requires asking permission at Berryhill Farm before climbing; visiting on a day when conditions are clearly unsuitable risks annoying the landowner and jeopardising future access for all climbers.
- Scattered light rain events over the past three weeks (Apr 11–May 1) mean the sandstone has had limited opportunity to fully dry out internally before today's heavy soaking.
Warnings
3
- Climbing on saturated Fell Sandstone causes irreversible hold breakage and permanent route damage — the NMC 'Love the rocks' ethic applies strictly today.
- The rock surface may appear to dry before the interior does; do not be deceived by a dry-looking surface in the coming days — apply the ground-moisture test before climbing.
- Remember to ask permission at Berryhill Farm before climbing; do not visit unannounced, especially on marginal days.
Reasoning
Today's 10.1mm of rain at 93% humidity has thoroughly saturated the Fell Sandstone; given that 80% of compressive strength loss occurs within 2.5–6 hours of water exposure, the rock is currently in its weakest state.
With today's NE wind sheltering the south-facing crag, cool 8.9°C temperatures, and near-saturated air, virtually no drying will occur today; meaningful drying can only begin once humidity drops and the wind shifts to a more favourable direction.
At current saturation levels the sandstone has lost an estimated 30–50% of its compressive strength, creating serious risk of hold breakage and permanent route damage — the iron oxide holds Berryhill is known for are particularly vulnerable.
Spring conditions in early May are generally improving, but this cold front with heavy rain has reset the drying clock; overnight lows near 5–6°C and continued high humidity will slow recovery over the next 24 hours.
Contributing Factors
6
10.1mm of rainfall today has thoroughly soaked the porous Fell Sandstone well beyond the critical 1% saturation threshold where significant weakening begins.
At 93% humidity there is almost no net evaporation occurring, meaning the rock will remain saturated throughout today.
A maximum of only 8.9°C significantly slows evaporative drying compared to the warmer days earlier this week.
The NE wind direction means the south-facing crag is largely sheltered, removing wind-assisted drying as a factor today.
Multiple small rain events over the past three weeks (totalling 25.4mm in 28 days) mean the rock had limited internal drying reserve before today's heavy soaking.
The south-facing aspect will receive good solar radiation once the weather clears, which will accelerate drying from tomorrow onwards.
Recommendations
3
- Do not climb at Berryhill today — the rock is saturated and climbing would risk permanent damage to holds and routes.
- Wait a minimum of 48–72 hours of dry weather before considering a visit; check that the ground at the crag base is completely sandy-dry before touching the rock.
- If visiting later this week, prioritise upper sections of the main crag and steeper lines which will dry fastest, and avoid the base of walls and sheltered approach walls.
Do Not Climb
92%
4 days ago
Berryhill received 8.9mm of rain today with 93% humidity and cool temperatures — the rock is actively wet and completely unsuitable for climbing. The Fell Sandstone will need at least 48–72 hours of dry weather to recover, and the forecast shows only marginal improvement over the next couple of days.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill's south aspect is beneficial for drying, but today's NE wind means the crag face is sheltered from the breeze, reducing effective drying.
- The free-standing boulders and approach walls may dry at different rates to the main crag — boulders with all-round exposure may dry faster, but lower sections will hold moisture longest.
- Access requires permission from Berryhill Farm before each visit — arriving to find conditions too wet to climb after disturbing the farmer risks goodwill and future access for all.
- The recent pattern of intermittent light rain (9.7mm over the past week before today's heavier event) means the sandstone has had little opportunity to fully dry out, keeping background moisture levels elevated.
Warnings
3
- Climbing on wet Fell Sandstone causes irreversible hold breakage and permanent route degradation — the NMC ethic of 'Love the rocks' applies here above all.
- The surface may appear dry well before the interior has dried — do not be deceived by surface appearance alone after this level of rainfall.
- Remember to ask permission at Berryhill Farm before climbing; visiting on a clearly unsuitable day and disturbing the landowner unnecessarily could jeopardise access.
Reasoning
With 8.9mm falling today at 93% humidity, the Fell Sandstone at Berryhill is currently saturated or near-saturated, well above the critical ~1% water saturation threshold where significant weakening begins.
The NE wind today shelters the south-facing crag from airflow, and with temperatures only reaching 9°C and very high humidity, negligible drying will occur today — effective drying cannot begin until conditions improve tomorrow at the earliest.
At current saturation levels the sandstone has likely lost 30%+ of its compressive strength, and the iron oxide cemented holds that climbers rely on are at serious risk of breakage if loaded.
Spring conditions in early May are improving but the recent week has been cool (average 9.2°C) with persistent high humidity (79%), limiting background drying capacity and keeping internal moisture elevated.
Contributing Factors
7
8.9mm of precipitation today is a significant wetting event for porous Fell Sandstone, saturating the rock rapidly via capillary suction.
93% humidity today essentially halts evaporative drying from the rock surface.
A maximum of only 9°C significantly slows drying compared to warmer spring days.
The south-facing crag is sheltered from today's NE wind, removing the drying benefit that wind would otherwise provide.
9.7mm of rain over the past 7 days before today means the sandstone had elevated background moisture even before this heavier event.
The south-facing aspect will aid drying once conditions improve, but this is irrelevant while rain is actively falling and humidity is extreme.
With zero dry days accumulated, the minimum 48-hour drying requirement for heavy rain has not even begun.
Recommendations
3
- Do not visit Berryhill today — the rock is actively wet and climbing would risk permanent damage to the sandstone holds and routes.
- Wait for at least 48 hours of dry weather with humidity below 75% before considering a visit; realistically aim for May 6th or later.
- Before travelling, check the ground at the base of the crag — if the soil is still damp, the rock is almost certainly still wet internally regardless of surface appearance.
Marginal — Assess Conditions
62%
5 days ago
The last significant rain was 0.7mm on May 1st, with only trace amounts before that and a good dry spell from April 22–30. The south aspect, moderate temperatures, and decent wind should have dried the rock from recent light precipitation, but persistent high humidity (82% today, 77% average over the last week) slows evaporation and warrants on-site verification before committing to climb.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill is on private land — climbers must ask permission at Berryhill Farm before every visit, as failure to do so could result in permanent access loss for all climbers.
- The free-standing boulders and approach walls may dry at different rates to the main crag; lower sections and any north-facing facets on the boulders will retain moisture longer than the main south-facing wall.
- Despite the favourable south aspect, the crag sits in a rural lowland setting near the Till valley where morning mist and dew can re-wet surfaces, particularly given the high humidity readings of recent days.
- The extended dry window from April 22–30 (nine days with only trace precipitation) likely allowed deeper moisture from the April 15th 5.9mm event to dissipate, which is a significant positive factor for internal rock condition.
Warnings
2
- Do not climb if the rock feels cool and clammy to the touch or if the ground at the base of the crag is moist — surface-dry Fell Sandstone can still be dangerously weakened internally.
- Rain is forecast from tomorrow (3.1mm) through to May 7th — conditions will deteriorate significantly and climbing should be avoided during and after this wet spell.
Reasoning
The rock received only 0.7mm on May 1st following an excellent 9-day near-dry spell, so internal moisture levels should be low, though the surface may have absorbed light moisture from yesterday's rain and persistent high humidity.
The south aspect and moderate SW winds (~20 km/h) provide reasonable drying conditions, and roughly 24 hours have elapsed since the last light rain, which is borderline adequate for such a small amount on already-dry rock.
Structural risk is moderate-low given the minimal recent precipitation and the extended dry spell beforehand, but Fell Sandstone weakens significantly even at low saturation levels so surface dampness from yesterday's 0.7mm should not be dismissed.
Spring conditions in early May are generally favourable with improving temperatures and longer days, though overnight frost on April 24th (-2.4°C) following earlier wet periods may have caused some minor freeze-thaw stress in any residually damp sections.
Contributing Factors
7
0.7mm fell on May 1st — a very small amount, but on porous Fell Sandstone even light wetting begins the weakening process and requires adequate drying time.
Nine consecutive days (April 22–30) with only trace precipitation allowed deeper moisture from the April 15th event (5.9mm) to dissipate thoroughly.
The south-facing aspect receives strong solar radiation in early May, significantly aiding surface and near-surface evaporation.
Today's humidity is 82% with a weekly average of 77%, which slows evaporative drying and may allow condensation on cool rock surfaces.
SW winds at ~20 km/h provide helpful airflow across the south-facing rock, aiding moisture removal from the surface.
Today's maximum of 16.6°C and recent temperatures in the 10–15°C range support reasonable evaporation rates for spring.
3.1mm forecast for tomorrow with 91% humidity signals a return to wet conditions, making today potentially the last viable window before a multi-day unsettled spell.
Recommendations
3
- Visit today if possible — conditions are likely the best window before an incoming unsettled spell; visually inspect the rock and use the ground-moisture test (if soil at the crag base is damp, the rock may still be wet internally).
- Focus on the main south-facing crag and upper sections which will have dried fastest; avoid lower sections, shaded alcoves, and any areas with visible seepage or moss.
- Remember to ask permission at Berryhill Farm before climbing — this is essential for maintaining access at this private estate crag.
Do Not Climb
55%
6 days ago
Today received 2.1mm of rain, resetting the drying clock on this porous Fell Sandstone crag. Despite a prolonged dry spell from April 22–30, today's rain means the rock surface is currently wet and needs at least 24–48 hours of dry weather to recover — and the forecast shows further light rain tomorrow and heavier rain on May 3rd, making sustained drying unlikely in the short term.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill's south aspect and low altitude (90m) give it above-average drying potential, but today's rain has re-wetted the surface and the high-porosity Fell Sandstone will have absorbed moisture rapidly.
- The crag had a good extended dry period from April 22–30 (8 days with only trace precipitation totalling 0.2mm), which likely allowed deeper internal moisture from mid-April rain events to dissipate — this is a positive baseline going into today's wetting event.
- Access is on private land and requires asking permission at Berryhill Farm before every visit — failure to do so jeopardises access for all climbers, so plan accordingly.
- The easterly winds of late April provided limited drying benefit for the south-facing crag; the forecast shift to SW/NW winds in coming days is more helpful but accompanied by further precipitation.
Warnings
2
- Today's rain means the Fell Sandstone is structurally weakened — climbing risks permanent hold breakage and route damage.
- The forecast shows no sustained 48-hour dry window until potentially May 4–5; exercise patience and check conditions before committing.
Reasoning
Today's 2.1mm of rain will have been rapidly absorbed into the porous Fell Sandstone surface, and although the preceding 8-day dry spell likely left the deeper rock reasonably dry, the outer layers are now freshly wetted.
The south aspect and moderate SW wind today (20.9 km/h) with a high max temperature of 21.9°C provide good drying potential, but rain fell today so the drying clock has only just started — insufficient time has elapsed for adequate drying.
With today's fresh wetting, the outer rock will have lost significant compressive strength (up to 80% strength loss within hours of wetting), and climbing today or tomorrow risks hold breakage and permanent damage to this valued crag.
Early May in Northumberland offers improving conditions with longer days and warmer temperatures, but the unsettled forecast with rain on 3 of the next 5 days limits sustained drying opportunities.
Contributing Factors
6
2.1mm of rain today has re-wetted the rock surface, resetting the drying clock and requiring a minimum 24–48 hours of dry weather before climbing.
Eight mostly dry days from April 22–30 (only 0.2mm trace precipitation) likely allowed good internal drying of deeper moisture from mid-April rain events.
The south-facing aspect and today's high of 21.9°C provide excellent solar drying potential, which will help surface moisture evaporate faster than at a north-facing crag.
Further rain is forecast on May 2 (0.7mm), May 3 (3.1mm), May 4 (0.6mm), and May 6 (1.2mm), preventing the sustained 48-hour dry window needed for confident drying.
Average humidity of 78% over the last 7 days and forecast humidity of 94% on May 3 will slow evaporation and prolong drying times.
Moderate wind exposure provides some drying assistance but is not dominant enough to compensate for repeated wetting events in the forecast.
Recommendations
3
- Do not climb today — the rock received 2.1mm of rain and will be visibly and internally wet despite warm temperatures.
- The best window in the next week appears to be May 5, after a dry day on the 5th with low humidity (52%) and NW/N winds — but check conditions carefully on arrival as prior days include rain.
- Always ask permission at Berryhill Farm before climbing; park on the farm lane approximately 50m past the cottages.
Marginal — Assess Conditions
65%
9 days ago
The last meaningful rain was 1.0mm on April 21st, giving approximately 8 days of mostly dry weather with only trace precipitation since. However, persistently high humidity (averaging 80% over the last week) and cool temperatures have significantly slowed drying, so while surfaces are likely dry, internal moisture may linger — a visual check on arrival is essential.
Based on weather conditions only — does not cover bird nesting restrictions or other access issues.
- Berryhill's south-facing aspect will have benefited from solar warming during the recent dry spell, but easterly winds over the last week offer less direct drying benefit than the prevailing south-westerlies the crag is partially exposed to.
- The approach walls and free-standing boulders may have different moisture profiles — lower sheltered sections and north-facing sides of boulders could retain dampness longer than the main south-facing crag.
- Access requires asking permission at Berryhill Farm before climbing; failure to do so risks losing access for all climbers on this private estate.
- The overnight frost on April 29th (min -0.9°C) following a period of high humidity means any residual surface moisture could have frozen and thawed, though the rock is unlikely to be critically saturated at this point.
Warnings
2
- Fell Sandstone can appear surface-dry while remaining internally damp — if any holds feel soft, chalky, or gritty, stop climbing immediately to prevent permanent damage.
- Overnight frost combined with any residual internal moisture may have caused minor surface weakening; test holds carefully on the first routes of the day.
Reasoning
The last significant rain was 1.0mm on April 21st with only traces (0.1mm each on April 26th and 27th) since, giving roughly 8 days of effective drying, but persistently high humidity (80% average) has slowed evaporation and the rock may retain some internal moisture.
The south-facing aspect has aided drying with daytime solar gain, but light easterly winds (14–17 km/h) and high humidity (76–85%) over the past week have provided only moderate drying conditions — slower than ideal for full internal drying of porous Fell Sandstone.
With 8 days since the last meaningful rain and only trace precipitation since, structural risk from moisture weakening is low but not negligible given the persistently humid conditions that may have slowed internal drying.
Mid-spring conditions are improving with longer days and warmer temperatures, but overnight frosts (down to -2.4°C on April 24th and -0.9°C today) combined with residual moisture pose a minor freeze-thaw concern.
Contributing Factors
6
Eight days since the last meaningful precipitation (1.0mm on April 21st), with only negligible traces since, provides a solid drying window for this porous sandstone.
Average humidity of 80% over the last seven days significantly reduces evaporation rates and slows internal drying of the porous Fell Sandstone.
The south aspect at low altitude (90m) maximises solar radiation during spring days, accelerating surface and near-surface drying.
Winds have been moderate to light (13–17 km/h) and predominantly easterly over the last week, providing less drying benefit than stronger south-westerlies would.
Minimum temperatures dropping below zero on several recent nights (-2.4°C, -0.9°C) could cause minor freeze-thaw stress if any internal moisture remains, though saturation levels are likely below the critical 60% threshold.
Total 28-day precipitation of 25.1mm means the rock has been repeatedly wetted through April, and the high porosity of Fell Sandstone means background moisture levels may be elevated despite the recent dry spell.
Recommendations
3
- Visually and tactilely assess the rock on arrival — check the base of the crag and any seepage lines; if the ground at the crag foot is damp or the rock feels cool and clammy, do not climb.
- Focus on the main south-facing crag which will have dried fastest; avoid any north-facing boulder faces or sheltered alcoves that may still hold moisture.
- Remember to ask permission at Berryhill Farm before climbing — this is essential for maintaining access at this private estate.
Climbing Outlook