Climbing Forecast › Cornwall — West Penwith › Rosemergy Mountain

CORNWALL — WEST PENWITH · GRANITE

Rosemergy Mountain climbing conditions

Caution — drying out or marginal

Right now

Temp20°C
Wind14.4 km/h
Gusts22 km/h
Humidity91.8%
Rain 48h0mm
Last rainNone recent

Assessment

No recent rain
Humidity 92% — potential fog
High humidity (91.8%) — granite friction compromised, particularly for bouldering
Humidity 91.8% — potential fog/cloud, rock may be damp from condensation

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Friday 14 August
Caution
Temp22°C
Rain0mm
Wind15 km/h
Gusts22 km/h
Humidity92%
No recent rainHumidity 92% — potential fog
Time °C Rain Wind Gust Hum
06:00 20° 0mm 14 0 91.8%
07:00 20° 0mm 13 0 91.8%
08:00 21° 0mm 12 0 91.7%
09:00 21° 0mm 13 0 91.8%
10:00 21° 0mm 13 0 91.9%
11:00 22° 0mm 12 0 91.4%
12:00 22° 0mm 13 0 91.4%
13:00 22° 0mm 13 0 91.6%
14:00 22° 0mm 15 0 92.2%
15:00 22° 0mm 17 0 92%
16:00 21° 0mm 21 0 92%
17:00 21° 0mm 25 0 93.1%
18:00 20° 0mm 24 0 92.7%
19:00 19° 0mm 23 0 92.1%
20:00 19° 0mm 23 0 91.1%
21:00 19° 0mm 22 0 89.3%
Sat Saturday 15 August
Good
Temp19°C
Rain0mm
Wind25 km/h
Gusts—
Humidity77%
No recent rain
  • Good conditions for granite
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 19° 0mm 30 0 78.7%
07:00 19° 0mm 28 0 77.7%
08:00 19° 0mm 28 0 78.7%
09:00 19° 0mm 26 0 79.6%
10:00 20° 0mm 25 0 79%
11:00 20° 0mm 24 0 78.3%
12:00 20° 0mm 23 0 77.4%
13:00 20° 0mm 23 0 76.2%
14:00 20° 0mm 25 0 75.6%
15:00 19° 0mm 25 0 76.6%
16:00 19° 0mm 27 0 77.6%
17:00 18° 0mm 30 0 77.5%
18:00 18° 0mm 30 0 77.2%
19:00 18° 0mm 29 0 74.9%
20:00 18° 0mm 28 0 73.9%
21:00 18° 0mm 27 0 73.5%
Sun Sunday 16 August
Good
Temp20°C
Rain0mm
Wind14 km/h
Gusts—
Humidity71%
No recent rain
  • Good conditions for granite
Time °C Rain Wind Gust Hum
06:00 18° 0mm 18 0 75.5%
07:00 18° 0mm 17 0 74.1%
08:00 19° 0mm 14 0 73.1%
09:00 19° 0mm 13 0 72.3%
10:00 19° 0mm 13 0 72%
11:00 20° 0mm 13 0 71.7%
12:00 20° 0mm 10 0 71%
13:00 20° 0mm 10 0 70.4%
14:00 20° 0mm 16 0 70.5%
15:00 20° 0mm 18 0 70.2%
16:00 20° 0mm 17 0 70.5%
17:00 19° 0mm 15 0 70.8%
18:00 19° 0mm 17 0 71.8%
Mon Monday 17 August
Good
Temp21°C
Rain0.1mm
Wind21 km/h
Gusts—
Humidity89%
No recent rain
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 19° 0.02mm 19 0 85.9%
12:00 21° 0mm 21 0 89%
18:00 20° 0.07mm 17 0 86.9%
Tue Tuesday 18 August
Poor
Temp22°C
Rain0.5mm
Wind26 km/h
Gusts—
Humidity87%
0.5mm rain forecast
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 20° 0.07mm 18 0 92.4%
12:00 22° 0.07mm 26 0 87.4%
18:00 20° 0.28mm 27 0 92.9%
Wed Wednesday 19 August
Good
Temp19°C
Rain0.2mm
Wind16 km/h
Gusts—
Humidity76%
Should be dry
  • Good conditions for granite
Time °C Rain Wind Gust Hum
06:00 18° 0.03mm 19 0 84.1%
12:00 19° 0.02mm 16 0 76.1%
18:00 18° 0.08mm 19 0 67%
Thu Thursday 20 August
Poor
Temp18°C
Rain0.9mm
Wind29 km/h
Gusts—
Humidity68%
0.9mm rain forecast
  • Good conditions for granite
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 17° 0.2mm 25 0 76.7%
12:00 18° 0.22mm 29 0 68.1%
18:00 18° 0.33mm 33 0 67.7%
Fri Friday 21 August
Poor
Temp18°C
Rain0.7mm
Wind32 km/h
Gusts—
Humidity74%
0.7mm rain forecast
  • Good conditions for granite
  • Very windy — exposed routes will be unpleasant
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 18° 0.08mm 37 0 73.3%
12:00 18° 0.08mm 32 0 73.6%
18:00 18° 0.03mm 28 0 71.6%
Sat Saturday 22 August
Poor
Temp17°C
Rain0.6mm
Wind7 km/h
Gusts—
Humidity79%
0.6mm rain forecast
  • Good conditions for granite
Time °C Rain Wind Gust Hum
06:00 17° 0.37mm 9 0 71.3%
12:00 17° 0.17mm 7 0 78.8%
18:00 17° 0.02mm 16 0 78.7%
Sun Sunday 23 August
Good
Temp18°C
Rain0.1mm
Wind21 km/h
Gusts—
Humidity76%
Should be dry
  • Good conditions for granite
  • Breezy — helps drying
Time °C Rain Wind Gust Hum
06:00 17° 0.03mm 19 0 77.5%
12:00 18° 0mm 21 0 75.6%
Rosemergy Mountain is an elevated granite hillside crag situated above the West Penwith coast road near Bosigran. The rock character consists of clean, crystalline granite with positive crimps, sharp horizontal breaks, and tidy corner features. Facing northwest, the crag catches late afternoon sun and benefits from open hill winds that dry the rock rapidly after rain. Grade coverage focuses on friendly lower and middle-grade traditional routes from Severe to lower E-grades, led by Rosemergy Corner. The approach takes ten to fifteen minutes up grassy hillside trails from parking laybys along the B3306. Non-tidal, hillside positioning makes it an easy, accessible alternative to coastal sea cliffs.

About Rosemergy Mountain

Rosemergy Mountain is an elevated granite hillside crag situated above the West Penwith coast road near Bosigran. The rock character consists of clean, crystalline granite with positive crimps, sharp horizontal breaks, and tidy corner features. Facing northwest, the crag catches late afternoon sun and benefits from open hill winds that dry the rock rapidly after rain. Grade coverage focuses on friendly lower and middle-grade traditional routes from Severe to lower E-grades, led by Rosemergy Corner. The approach takes ten to fifteen minutes up grassy hillside trails from parking laybys along the B3306. Non-tidal, hillside positioning makes it an easy, accessible alternative to coastal sea cliffs.

Region
Cornwall — West Penwith
Rock type
granite
Aspect
north-west-facing
Altitude
180m
Exposure
medium
Seepage
low

Other crags in this region

Aire PointCape CornwallCarn BarraCarn GlooseCarn Les BoelChun Castle BouldersGurnard's HeadKenidjack CliffPedn-a-VounderPendeen WatchPorth LeddenPorthcurnoZennor AerieCarn Galver