Climbing Forecast › North Wales — Llanberis Pass › Carreg Wastad

NORTH WALES — LLANBERIS PASS · RHYOLITE

Carreg Wastad weather & climbing conditions

Poor — wet, too windy or closed

Right now

Temp3°C
Wind35 km/h
Gusts46 km/h
Humidity100%
Rain 48h0.6mm
Last rain1h ago

Assessment

8.8mm rain forecast
Wind 59 km/h, gusts 86 km/h — too windy
Humidity 99% — likely fog/cloud
Cold — excellent friction but watch for damp seeping features
High humidity (100%) — rhyolite friction compromised, particularly for bouldering
Windy — 35 km/h, gusts 46 km/h. Take care on exposed routes

Drying Time

16% dry · 5-11h to dry

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Wednesday 21 October
Poor
Temp2°C
Rain9mm
Wind59 km/h
Gusts86 km/h
Humidity99%
8.8mm rain forecastWind 59 km/h, gusts 86 km/h — too windyHumidity 99% — likely fog/cloud
  • Cold mountain conditions — pack warm belay layers
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
10:00 3° 0.6mm 35 46 100%
13:00 2° 6mm 73 86 99.81%
16:00 1° 2mm 70 84 96.03%
19:00 1° 0.3mm 57 67 86%
Thu Thursday 22 October
Poor
Temp2°C
Rain5mm
Wind27 km/h
Gusts37 km/h
Humidity89%
4.9mm rain forecast
  • Cold mountain conditions — pack warm belay layers
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
07:00 1° 3mm 32 39 99.28%
10:00 1° 0.1mm 28 37 98.25%
13:00 2° dry 27 37 86.5%
16:00 3° dry 26 34 82.6%
19:00 3° dry 34 42 85.72%
Fri Friday 23 October
Poor
Temp2°C
Rain13mm
Wind58 km/h
Gusts90 km/h
Humidity92%
13mm rain forecastWind 58 km/h, gusts 90 km/h — too windyHumidity 92% — potential fog
  • Cold mountain conditions — pack warm belay layers
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
07:00 4° 0.3mm 22 29 95.24%
10:00 3° 3mm 56 82 97.45%
13:00 2° 3mm 62 90 94.5%
16:00 1° dry 57 88 85.01%
19:00 1° dry 52 77 78.9%
Sat Saturday 24 October
Poor
Temp4°C
Rain25mm
Wind65 km/h
Gusts105 km/h
Humidity96%
25.3mm rain forecastWind 65 km/h, gusts 105 km/h — too windyHumidity 96% — potential fog
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
07:00 1° 0.6mm 41 58 95.71%
10:00 2° 3mm 59 87 96.12%
13:00 4° 8mm 71 105 96.22%
16:00 6° 9mm 64 94 96.69%
19:00 6° 5mm 64 96 93.43%
Sun Sunday 25 October
Poor
Temp2°C
Rain3mm
Wind55 km/h
Gusts89 km/h
Humidity79%
3.2mm rain forecastWind 55 km/h, gusts 89 km/h — too windy
  • Cold mountain conditions — pack warm belay layers
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 1° 0.1mm 65 96 88.9%
09:00 1° 0.8mm 62 93 87.86%
12:00 2° 0.9mm 58 89 80.33%
15:00 3° dry 53 80 76.7%
18:00 2° dry 50 70 79.84%
21:00 2° dry 46 63 83.31%
Mon Monday 26 October
Poor
Temp6°C
Rain21mm
Wind77 km/h
Gusts110 km/h
Humidity94%
20.9mm rain forecastWind 77 km/h, gusts 110 km/h — too windyHumidity 94% — potential fog
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 3° 2mm 61 82 94.07%
09:00 4° 4mm 69 94 94.96%
12:00 6° 5mm 76 106 94.85%
15:00 7° 4mm 79 110 93.11%
18:00 6° 3mm 76 107 92.3%
21:00 5° 3mm 72 102 90.25%
Tue Tuesday 27 October
Poor
Temp3°C
Rain1mm
Wind53 km/h
Gusts81 km/h
Humidity81%
1.1mm rain forecastWind 53 km/h, gusts 81 km/h — too windy
  • Cold mountain conditions — pack warm belay layers
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 2° dry 63 89 89.64%
09:00 2° 0.1mm 59 85 87.12%
12:00 3° dry 54 81 80.97%
15:00 3° 0.7mm 53 77 80.54%
18:00 3° dry 54 74 85.61%
21:00 2° dry 55 76 88.54%
Wed Wednesday 28 October
Poor
Temp3°C
Rain3mm
Wind58 km/h
Gusts—
Humidity—
3.3mm rain forecastWind 58 km/h, gusts null km/h — too windy
  • Cold mountain conditions — pack warm belay layers
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 3° 1mm 56 76 94.21%
09:00 3° 1mm 55 76 93.41%

About Carreg Wastad

South-facing lower crag in the Pass — can be climbed on clear winter days. Dries faster than its north-facing neighbours.

Region
North Wales — Llanberis Pass
Rock type
Rhyolite
Aspect
south-facing
Altitude
380m
Exposure
medium
Seepage
low

Other crags in this region

Clogwyn y GrochanCraig DduCromlech BouldersCyrn LasDinas CromlechDinas Mot