Climbing Forecast › Snowdonia — Nantlle › Craig y Bera

SNOWDONIA — NANTLLE · RHYOLITE

Craig y Bera climbing conditions

Poor — wet, too windy or closed

Right now

Temp15°C
Wind16.1 km/h
Gusts19 km/h
Humidity99.13%
Rain 48h0mm
Last rainNone recent

Assessment

0.5mm rain forecast
Humidity 93% — potential fog

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Friday 14 August
Poor
Temp15°C
Rain0.5mm
Wind17 km/h
Gusts27 km/h
Humidity93%
0.5mm rain forecastHumidity 93% — potential fog
  • Good temperature for mountain rhyolite
  • Damp mountain air — upper pitches may stay greasy
Time °C Rain Wind Gust Hum
06:00 15° 0mm 16 19 99.13%
09:00 16° 0mm 12 16 96.26%
12:00 16° 0.35mm 15 20 97.57%
15:00 15° 0.15mm 20 27 87.88%
18:00 14° 0mm 22 29 82.19%
21:00 13° 0mm 23 30 91.91%
Sat Saturday 15 August
Good
Temp12°C
Rain0.2mm
Wind19 km/h
Gusts29 km/h
Humidity70%
Should be dry
  • Good temperature for mountain rhyolite
Time °C Rain Wind Gust Hum
06:00 10° 0.18mm 22 31 97.55%
09:00 11° 0mm 22 32 86.75%
12:00 12° 0mm 19 28 72.98%
15:00 12° 0mm 19 29 67.27%
18:00 12° 0mm 19 28 71.05%
21:00 10° 0mm 17 24 84.56%
Sun Sunday 16 August
Good
Temp13°C
Rain0mm
Wind11 km/h
Gusts27 km/h
Humidity68%
Should be dry
  • Good temperature for mountain rhyolite
Time °C Rain Wind Gust Hum
06:00 8° 0mm 8 12 92.57%
09:00 10° 0mm 8 18 78.7%
12:00 13° 0mm 10 24 67.55%
15:00 14° 0mm 13 27 67.84%
18:00 14° 0mm 11 21 71.65%
21:00 12° 0mm 10 16 91.5%
Mon Monday 17 August
Poor
Temp14°C
Rain1.4mm
Wind18 km/h
Gusts35 km/h
Humidity83%
1.4mm rain forecast
  • Good temperature for mountain rhyolite
  • Wet rhyolite is slippery; seepage from grass above can linger
Time °C Rain Wind Gust Hum
06:00 11° 0mm 14 22 95.63%
09:00 12° 0mm 15 28 88.93%
12:00 14° 0.24mm 18 34 83.25%
15:00 15° 0.4mm 19 35 82.34%
18:00 14° 0mm 21 37 88.49%
21:00 13° 0.75mm 27 44 97.14%
Tue Tuesday 18 August
Poor
Temp14°C
Rain10.1mm
Wind26 km/h
Gusts46 km/h
Humidity88%
10.1mm rain forecastWindy — 26 km/h, gusts 46 km/hHumidity 88% — potential fog
  • Good temperature for mountain rhyolite
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 13° 1.48mm 27 44 97.97%
09:00 13° 1.55mm 26 45 96.04%
12:00 13° 1.45mm 26 46 90.68%
15:00 14° 1.15mm 26 46 85.77%
18:00 14° 0.85mm 24 40 85.43%
21:00 13° 0.74mm 23 36 93.57%
Wed Wednesday 19 August
Poor
Temp12°C
Rain3.2mm
Wind25 km/h
Gusts46 km/h
Humidity73%
3.2mm rain forecastWindy — 25 km/h, gusts 46 km/h
  • Good temperature for mountain rhyolite
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 9° 0.5mm 23 36 95.2%
09:00 10° 0.62mm 24 41 88.36%
12:00 11° 0.61mm 25 46 75.43%
15:00 12° 0mm 25 45 71.45%
18:00 12° 0.35mm 23 39 77.94%
21:00 11° 0mm 22 33 91.58%
Thu Thursday 20 August
Poor
Temp12°C
Rain3.7mm
Wind22 km/h
Gusts42 km/h
Humidity76%
3.7mm rain forecast
  • Good temperature for mountain rhyolite
  • Wet rhyolite is slippery; seepage from grass above can linger
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 8° 0.46mm 21 33 96.16%
09:00 9° 0.57mm 21 38 86.04%
12:00 11° 0.93mm 22 42 76.69%
15:00 12° 0.83mm 22 39 75.56%
18:00 11° 0.55mm 20 34 78.99%
21:00 10° 0mm 18 28 91.42%
Fri Friday 21 August
Caution
Temp8°C
Rain0mm
Wind17 km/h
Gusts—
Humidity—
Should be dryHigh seepage — may still be weeping
  • Good temperature for mountain rhyolite
Craig y Bera is a remote, imposing cliff hidden on the flanks of Mynydd Mawr, composed of steep rhyolite volcanic rock. The rock character features wild, fluted columns, fragile edges, and exposed wall faces that demand careful gear placement and bold climbing. Facing west, the cliff captures late afternoon sun, but its high, windswept mountain position means dampness lingers in main wall cracks after rain. Grade coverage focuses heavily on adventurous HVS and E-grade trad testpieces, with Angel Pavement standing as one of Snowdonia's greatest mountain excursions. The approach involves a forty-five minute hike up through forest trails and open moorland from Rhyd Ddu. Loose rock fragments on unclimbed territory and sparse gear on subtle walls require extreme caution.

About Craig y Bera

Craig y Bera is a remote, imposing cliff hidden on the flanks of Mynydd Mawr, composed of steep rhyolite volcanic rock. The rock character features wild, fluted columns, fragile edges, and exposed wall faces that demand careful gear placement and bold climbing. Facing west, the cliff captures late afternoon sun, but its high, windswept mountain position means dampness lingers in main wall cracks after rain. Grade coverage focuses heavily on adventurous HVS and E-grade trad testpieces, with Angel Pavement standing as one of Snowdonia's greatest mountain excursions. The approach involves a forty-five minute hike up through forest trails and open moorland from Rhyd Ddu. Loose rock fragments on unclimbed territory and sparse gear on subtle walls require extreme caution.

Region
Snowdonia — Nantlle
Rock type
rhyolite
Aspect
west-facing
Altitude
480m
Exposure
high
Seepage
high

Other crags in this region

Cwm Silyn