Crags

Gabbro at Porth Ysgo received rain earlier this morning but the non-porous rock should dry quickly once showers stop; a dry window looks possible from mid-afternoon onward, though humidity remains high and heavy rain is forecast for the coming days. Climbers visiting this afternoon should visually check surfaces and be prepared for reduced friction from residual moisture and salt spray.

Today is dry with a useful afternoon window where humidity drops into the 60s, and the non-porous dolerite should be surface-dry after yesterday's dry spell — but the north-facing aspect, 100% cloud cover, and high overnight humidity mean residual dampness or condensation is possible. A significant wet spell begins tomorrow with over 60mm forecast in the next five days, so today is the last realistic climbing opportunity for nearly a week.

The last significant rain was 13.3mm on Aug 19, followed by 2.3mm on Aug 20 and trace amounts on Aug 21 and 25. There have been approximately 4.5 dry days since the last meaningful precipitation (0.4mm on Aug 25), but humidity has been high (78% average over the past week) and today's humidity is very high (89% daily, peaking at 97% overnight), limiting drying effectiveness. A visual check on arrival is essential, particularly of pockets and lower sections.

The last significant rain was 16.1mm on August 19th, followed by lighter showers on the 20th–21st and a trace on the 25th; the crag has had roughly 4 full dry days with moderate temperatures and decent wind on a favourable south aspect, which should be adequate for surface drying but internal moisture from the heavy mid-August rain period remains a concern. Today is likely the last dry window before a very wet spell arrives tomorrow, so a careful on-site assessment is warranted.

The rock had five fully dry days (Aug 21–25) after 8.8mm on Aug 20, which in summer warmth should have allowed reasonable drying, but today's trace precipitation and very high overnight humidity may have re-dampened surfaces. With 22.9mm forecast tomorrow and continued heavy rain through the weekend, today's late afternoon offers the only realistic climbing window before a prolonged wet spell.

The last significant rain was 14mm on August 19th followed by 2.3mm on the 20th, with only a trace (0.9mm) on August 25th. There have been roughly 5 good drying days since the heavy rain, but the recent trace rain, high ambient humidity (84% today), and a very wet forecast from tomorrow onward introduce uncertainty about current surface conditions.

The rock has had roughly 4 dry days since the last significant rain on August 20th (7.2mm), but a cluster of wet days from August 16–21 deposited ~15mm in total, and humidity has remained high (79% average over the last week). The south/south-west aspect and exposed position have aided drying, and conditions may be acceptable on upper, well-drained faces this afternoon — but visual assessment is essential before committing, especially with heavy rain arriving tomorrow.

The last significant rain was 3.8mm on August 25, giving only one full dry day so far; however, today's midday window (low humidity ~69%, decent wind, clearing skies) on this exposed SW-facing hilltop may have allowed useful surface drying. With heavy rain forecast from tomorrow (13.5mm+), today's afternoon offers the only realistic climbing window for the coming week, but conditions should be visually confirmed on arrival.

The last significant rain was 18.5mm on August 19th, giving roughly 6–7 days of mostly dry weather, but intervening trace precipitation on Aug 20–21 and Aug 25, combined with high humidity and a sheltered woodland setting, mean internal moisture may still linger on some boulders. Today is dry with moderate temperatures but very high humidity (85% average), so drying gains are limited — a careful on-site assessment is warranted before climbing.

The last significant rain was 9.1mm on Aug 19, followed by 1.5mm on Aug 20 and 2.2mm on Aug 25 — giving only one full dry day before today. The S/SW aspect and exposed setting help drying, but persistently high humidity (~83% average over the last week) has slowed evaporation; a careful on-site assessment is needed before committing to climb, and heavy rain is forecast from tomorrow making this potentially the last window for several days.

The last significant rain was 12.3mm on August 19th, followed by minor drizzle on the 20th–21st and a trace on the 25th; the crag has had roughly 4–5 days of broadly dry weather with moderate winds and decent temperatures on its exposed SW aspect, which should have allowed substantial drying. However, today's very high humidity (89% average, peaking near 95%) is inhibiting final surface drying, and heavy rain is forecast from tomorrow, so today represents a narrow and uncertain window.

The last significant rain was 6.0mm on August 19th, followed by 2.4mm on August 20th, giving roughly 5–6 dry days before light drizzle (0.7mm) on August 25th and a trace today. The SE/S aspect and moderate winds have aided drying, but humidity has been persistently high (83% average over the past week), and a major storm front (25.9mm) arrives tomorrow, making today the only realistic window — and conditions should be visually verified on arrival.

Only one full dry day since 1.6mm rain on August 25th, and the preceding week included 11.7mm and 5.0mm events; today is dry with moderate wind but very high humidity (86% average, 93–95% overnight). The rock may have dried sufficiently on wind-exposed faces by this afternoon, but the NW aspect, high altitude, persistent cloud cover, and elevated humidity create significant uncertainty about internal moisture state.

The last significant rain was 8.1mm on August 19, followed by 4.0mm on August 20, with only trace amounts since (0.1mm on Aug 22, 1.0mm on Aug 25). Today marks roughly one full dry day after a light 1.0mm shower on Aug 25, but the preceding wet spell and persistently high humidity (80%+ average over the last week) mean internal moisture levels are uncertain. Conditions may be acceptable on exposed lower boulders this afternoon, but a visual and touch assessment is essential before committing — and heavy rain arrives tomorrow.