Right now

Temp10°C

Wind17 km/h

Gusts26 km/h

Humidity86%

Rain 48h0.1mm

Last rain56h ago

Assessment

3.4mm rain forecast

Good friction temperature range for rhyolite

High humidity (86%) — rhyolite friction compromised, particularly for bouldering

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Sunday 6 September

Poor

Temp14°C

Rain3mm

Wind22 km/h

Gusts26 km/h

Humidity84%

3.4mm rain forecast

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 10° dry 17 — 86%

07:00 10° dry 18 — 84.5%

08:00 10° 1mm 20 — 86.3%

09:00 10° 0.2mm 18 — 93.3%

10:00 10° dry 17 — 96.1%

11:00 12° dry 20 — 92%

12:00 13° dry 21 — 88%

13:00 14° dry 22 — 81.8%

14:00 15° dry 24 — 75.5%

15:00 16° dry 25 — 75.9%

16:00 16° dry 26 — 79%

17:00 15° dry 24 — 82.5%

18:00 15° dry 25 — 82.4%

19:00 15° dry 25 — 83.7%

20:00 14° 0.3mm 25 — 88.7%

21:00 13° 0.4mm 23 — 95.4%

Mon Monday 7 September

Poor

Temp12°C

Rain21mm

Wind24 km/h

Gusts—

Humidity78%

20.6mm rain forecast

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 11° dry 16 — 97.1%

07:00 11° dry 16 — 97.3%

08:00 11° dry 16 — 95.1%

09:00 11° dry 18 — 92%

10:00 11° dry 20 — 84%

11:00 12° dry 22 — 75.3%

12:00 13° dry 23 — 71%

13:00 13° dry 24 — 75.7%

14:00 13° dry 26 — 76.8%

15:00 12° dry 25 — 78.9%

16:00 12° 0.5mm 26 — 81%

17:00 11° 3mm 25 — 88.8%

18:00 10° 4mm 27 — 93.9%

19:00 11° 4mm 27 — 95.2%

20:00 9° 2mm 22 — 93.9%

21:00 9° 1mm 19 — 90.4%

Tue Tuesday 8 September

Poor

Temp9°C

Rain9mm

Wind31 km/h

Gusts—

Humidity91%

8.5mm rain forecastHumidity 91% — potential fog

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 7° 0.8mm 28 — 94.3%

07:00 7° 1mm 26 — 93.2%

08:00 7° 0.9mm 28 — 92.3%

09:00 8° 0.2mm 30 — 96%

10:00 9° 0.6mm 29 — 92.3%

11:00 9° 0.2mm 28 — 93.6%

12:00 10° 0.5mm 34 — 87.9%

13:00 10° 1mm 32 — 88.3%

14:00 10° 0.9mm 31 — 93.8%

15:00 9° 0.4mm 31 — 89.1%

16:00 10° 0.3mm 34 — 88.5%

17:00 9° 0.2mm 35 — 86.7%

18:00 9° dry 35 — 86%

Wed Wednesday 9 September

Caution

Temp11°C

Raindry

Wind15 km/h

Gusts—

Humidity67%

Drying — 20h since rain

Good temperature for mountain rhyolite

Time °C Rain Wind (km/h) Gust Hum

06:00 6° dry 12 — 97.9%

12:00 11° dry 15 — 67.1%

18:00 10° dry 14 — 74.2%

Thu Thursday 10 September

Poor

Temp11°C

Rain0.7mm

Wind17 km/h

Gusts—

Humidity93%

0.7mm rain forecastHumidity 93% — potential fog

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger

Time °C Rain Wind (km/h) Gust Hum

06:00 9° 0.1mm 12 — 94.3%

12:00 11° 0.3mm 17 — 92.9%

18:00 12° 0.2mm 10 — 97.1%

Fri Friday 11 September

Poor

Temp11°C

Rain0.6mm

Wind21 km/h

Gusts—

Humidity77%

0.6mm rain forecast

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 10° 0.2mm 14 — 98.4%

12:00 11° dry 21 — 77.3%

18:00 10° dry 14 — 79.9%

Sat Saturday 12 September

Poor

Temp11°C

Rain1mm

Wind18 km/h

Gusts—

Humidity76%

1.4mm rain forecast

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger

Time °C Rain Wind (km/h) Gust Hum

06:00 6° dry 4 — 94.8%

12:00 11° dry 18 — 75.7%

18:00 10° 1mm 20 — 90.6%

Sun Sunday 13 September

Poor

Temp13°C

Rain0.8mm

Wind7 km/h

Gusts—

Humidity89%

0.8mm rain forecast

Good temperature for mountain rhyolite
Wet rhyolite is slippery; seepage from grass above can linger

Time °C Rain Wind (km/h) Gust Hum

06:00 12° 0.1mm 12 — 98%

12:00 13° dry 7 — 89.1%

18:00 13° dry 7 — 94.7%

About Castle Rock of Triermain

One of the best low-lying valley crags in the Lakes — at the north end of Thirlmere / south end of St John's in the Vale. South Crag (~35m) is sunny and quick-drying; North Crag (~75m) holds moisture longer with sustained grooves and ramps.

Region: Lake District — Thirlmere
Rock type: Rhyolite
Aspect: south-facing
Altitude: 230m
Exposure: medium
Seepage: medium

Other crags in this region

Bramcrag Quarry Castle Rock of Triermain Fishercrag Raven Crag (Thirlmere)