Climbing Forecast › Cornwall › Bosigran

CORNWALL · GRANITE · tidal

Bosigran weather & climbing conditions

Poor — wet, too windy or closed

Right now

Temp12°C
Wind55 km/h
Gusts83 km/h
Humidity59.4%
Rain 48h1mm
Last rain16h ago

Assessment

7.8mm rain forecast
Wind 52 km/h, gusts 0 km/h — too windy
Strong onshore wind — sea spray may wet the rock
Good friction temperature range for granite

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Wednesday 21 October
Poor
Temp12°C
Rain8mm
Wind52 km/h
Gusts83 km/h
Humidity64%
7.8mm rain forecastWind 52 km/h, gusts 0 km/h — too windy
  • Good conditions for granite
  • Very windy — exposed routes will be unpleasant
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
11:00 12° 0.2mm 55 — 59.4%
12:00 12° 0.2mm 53 — 59%
13:00 12° 0.5mm 53 — 64.4%
14:00 11° 0.5mm 51 — 69.4%
15:00 12° 0.4mm 52 — 66.7%
16:00 12° 0.1mm 50 — 63.4%
17:00 13° 0.2mm 52 — 60.2%
18:00 13° dry 54 — 59%
19:00 13° 0.4mm 50 — 62.3%
20:00 12° 1mm 55 — 72.5%
21:00 11° 2mm 50 — 82%
Thu Thursday 22 October
Poor
Temp13°C
Rain13mm
Wind27 km/h
Gusts—
Humidity74%
12.5mm rain forecast
  • Good conditions for granite
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 13° dry 34 — 71.1%
07:00 13° dry 32 — 70.4%
08:00 13° dry 30 — 69.2%
09:00 13° dry 27 — 67.7%
10:00 13° dry 25 — 67.2%
11:00 13° dry 21 — 67.1%
12:00 14° dry 20 — 67.7%
13:00 14° dry 24 — 70%
14:00 13° 0.3mm 29 — 73.3%
15:00 13° 1mm 34 — 83.2%
16:00 12° 0.8mm 36 — 89.7%
17:00 13° 1mm 39 — 89.7%
18:00 13° 0.8mm 45 — 90.1%
19:00 13° 3mm 45 — 89.2%
20:00 13° 2mm 55 — 88.7%
21:00 13° 0.3mm 51 — 92.2%
Fri Friday 23 October
Poor
Temp12°C
Rain7mm
Wind63 km/h
Gusts—
Humidity65%
6.5mm rain forecastWind 63 km/h, gusts 0 km/h — too windy
  • Good conditions for granite
  • Very windy — exposed routes will be unpleasant
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 12° 0.3mm 99 — 86%
07:00 12° 0.9mm 97 — 81.7%
08:00 11° 0.4mm 88 — 80.3%
09:00 11° dry 73 — 76.7%
10:00 12° dry 70 — 71.8%
11:00 11° dry 67 — 69.3%
12:00 12° dry 68 — 65.3%
13:00 12° dry 64 — 65.2%
14:00 12° dry 60 — 63.2%
15:00 12° 0.1mm 56 — 60.6%
16:00 12° dry 54 — 59.6%
17:00 13° dry 54 — 59.2%
18:00 13° 0.1mm 53 — 58.6%
19:00 13° 0.2mm 54 — 57.4%
20:00 12° 0.4mm 50 — 61.4%
21:00 13° 0.2mm 49 — 62%
Sat Saturday 24 October
Poor
Temp14°C
Rain5mm
Wind53 km/h
Gusts—
Humidity92%
5.1mm rain forecastWind 53 km/h, gusts 0 km/h — too windyHumidity 92% — potential fog
  • Good conditions for granite
  • Very windy — exposed routes will be unpleasant
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
07:00 12° 2mm 28 — 76.4%
13:00 14° 2mm 53 — 91.5%
19:00 15° 0.3mm 51 — 93%
Sun Sunday 25 October
Caution
Temp13°C
Rain0.1mm
Wind43 km/h
Gusts—
Humidity66%
Should be dryWindy — 43 km/h, gusts 0 km/h
  • Good conditions for granite
  • Very windy — exposed routes will be unpleasant
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 12° dry 49 — 67.5%
12:00 13° dry 43 — 65.9%
18:00 13° dry 28 — 60.6%
Mon Monday 26 October
Poor
Temp15°C
Rain1mm
Wind45 km/h
Gusts—
Humidity92%
1.3mm rain forecastWindy — 45 km/h, gusts 0 km/hHumidity 92% — potential fog
  • Good conditions for granite
  • Very windy — exposed routes will be unpleasant
  • Very windy — consider sheltered alternatives
Time °C Rain Wind (km/h) Gust Hum
06:00 12° 0.9mm 35 — 84.9%
12:00 15° dry 45 — 92%
18:00 15° 0.1mm 42 — 92.4%
Tue Tuesday 27 October
Good
Temp13°C
Raindry
Wind13 km/h
Gusts—
Humidity55%
Should be dry
  • Good conditions for granite
Time °C Rain Wind (km/h) Gust Hum
06:00 12° dry 28 — 62.1%
12:00 13° dry 13 — 55%
18:00 12° dry 16 — 74%
Wed Wednesday 28 October
Poor
Temp15°C
Rain0.4mm
Wind23 km/h
Gusts—
Humidity89%
0.4mm rain forecast
  • Good conditions for granite
  • Breezy — helps drying
Time °C Rain Wind (km/h) Gust Hum
06:00 14° dry 26 — 96.4%
12:00 15° dry 23 — 89.3%
18:00 14° dry 9 — 94.1%
Tidal access
Non-tidal for most routes. Zawns at the base can be reached by abseil. Cliff base sits well above the sea.

About Bosigran

Premier Cornish sea cliff on sun-baked west-facing granite. Dries quickly in afternoon sun and sea breeze. Seepage in zawns after prolonged rain. The rock is world-class rough friction-rich granite with deep jams, pristine horizontal breaks, and bold vertical corners high above the Atlantic. Park at the National Trust car park by the Carn Galver mine ruins on the B3306 between St Ives and Pendeen. Classics include Doorpost (HS 4b) and Anvil Chorus (VS 4c), with Commando Ridge (VD) close by.

Region
Cornwall
Rock type
Granite
Aspect
west-facing
Altitude
40m
Exposure
medium
Seepage
low

Other crags in this region

Chair LadderRosemergy TowersSennen (Pedn-men-du)