Poor.
Thunder risk increases the seriousness of exposed climbing.
Eryri · climbing crag beta
Idwal Slabs climbing conditions.
Aspect-aware crag drying, rain and exposed-wind guidance for rhyolite climbing.
11/100
Seven-day outlook
Idwal Slabs day by day.
The headline stays short. Expand a day to compare recent rain, drying windows, surface state and the wind on the climb with more exposed ground above.
PoorThunder risk increases the seriousness of exposed climbing.11/100+
480 m · representative sector
11/100Crag-wide signal
Thunder risk increases the seriousness of exposed climbing.
- Rock surface
- Wet or seeping
- Recent rain
- 8.4 mm / 24 h
- Climbing-window rain
- 6.1 mm
- Face wind / gust
- 10 / 17 mph
- Above-crag gust
- 20 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: Wind is somewhat stronger on open ground above the crag, where gusts reach about 20 mph.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
PoorThunder risk increases the seriousness of exposed climbing.26/100+
480 m · representative sector
26/100Crag-wide signal
Thunder risk increases the seriousness of exposed climbing.
- Rock surface
- Wet or seeping
- Recent rain
- 8.4 mm / 24 h
- Climbing-window rain
- 1.2 mm
- Face wind / gust
- 15 / 25 mph
- Above-crag gust
- 25 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: The cliff face and open ground above have broadly similar wind exposure.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
PoorRain is likely to wet the crag during the climbing window.35/100+
480 m · representative sector
35/100Crag-wide signal
Rain is likely to wet the crag during the climbing window.
- Rock surface
- Wet or seeping
- Recent rain
- 1.2 mm / 24 h
- Climbing-window rain
- 1.2 mm
- Face wind / gust
- 13 / 19 mph
- Above-crag gust
- 21 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: The cliff face and open ground above have broadly similar wind exposure.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
PoorRain is likely to wet the crag during the climbing window.10/100+
480 m · representative sector
10/100Crag-wide signal
Rain is likely to wet the crag during the climbing window.
- Rock surface
- Wet or seeping
- Recent rain
- 18.6 mm / 24 h
- Climbing-window rain
- 4.9 mm
- Face wind / gust
- 12 / 18 mph
- Above-crag gust
- 20 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: The cliff face and open ground above have broadly similar wind exposure.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
PoorRain is likely to wet the crag during the climbing window.28/100+
480 m · representative sector
28/100Crag-wide signal
Rain is likely to wet the crag during the climbing window.
- Rock surface
- Wet or seeping
- Recent rain
- 7.8 mm / 24 h
- Climbing-window rain
- 0.2 mm
- Face wind / gust
- 14 / 25 mph
- Above-crag gust
- 27 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: The cliff face and open ground above have broadly similar wind exposure.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
PoorRecent rain leaves some drying uncertainty.38/100+
480 m · representative sector
38/100Crag-wide signal
Recent rain leaves some drying uncertainty.
- Rock surface
- Wet or seeping
- Recent rain
- 5.4 mm / 24 h
- Climbing-window rain
- 0.0 mm
- Face wind / gust
- 11 / 22 mph
- Above-crag gust
- 21 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: The cliff face and open ground above have broadly similar wind exposure.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
PoorThunder risk increases the seriousness of exposed climbing.0/100+
480 m · representative sector
0/100Crag-wide signal
Thunder risk increases the seriousness of exposed climbing.
- Rock surface
- Wet or seeping
- Recent rain
- 2.4 mm / 24 h
- Climbing-window rain
- 59.3 mm
- Face wind / gust
- 6 / 31 mph
- Above-crag gust
- 34 mph
- Best drying window
- No clear drying window
- Greasy-rock risk
- High
Wind: Wind is somewhat stronger on open ground above the crag, where gusts reach about 35 mph.
Wet or seeping sections are likely; choose another crag or wait for direct observations.
Did this match the crag?
Use it as a starting signal
Rhyolite still needs an on-arrival check.
The forecast combines recent and expected rain with broad drying, humidity, dew and wind signals. The climb and open ground above the crag are treated separately where the mapped face gives useful shelter context.
A representative climbing-face direction has been checked against a published crag description, but the named point does not resolve individual sectors, route boundaries or exact belay positions. Forecast-grid weather and representative sector geometry only. Check live access information and touch-test the rock before climbing.
Access: Check the live RAD page and the separate winter-conditions monitoring advice where relevant.