Right now

Temp17°C

Wind31 km/h

Gusts47 km/h

Humidity85.1%

Rain 48hdry

Last rainNone recent

Assessment

No recent rain

Windy — 26 km/h, gusts 0 km/h

Tidal access: Base traverse accessible ~3h either side of high tide. Terrier's Tooth and Bishop's Buttress accessible for longer. Scrambling descent into western end (Pegasus area) remains open at all tides.

High humidity (85.1%) — granite friction compromised, particularly for bouldering

Humidity 85.1% — potential fog/cloud, rock may be damp from condensation

Windy — 31 km/h, gusts 47 km/h. Take care on exposed routes

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Sunday 6 September

Caution

Temp20°C

Raindry

Wind26 km/h

Gusts47 km/h

Humidity84%

No recent rainWindy — 26 km/h, gusts 0 km/h

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 17° dry 31 — 85.1%

07:00 18° dry 29 — 86.7%

08:00 18° dry 27 — 88.6%

09:00 18° dry 27 — 86.5%

10:00 19° dry 30 — 83.5%

11:00 19° dry 31 — 79.3%

12:00 20° dry 29 — 80.5%

13:00 20° dry 26 — 80.2%

14:00 20° dry 23 — 84.1%

15:00 20° dry 21 — 87.2%

16:00 20° dry 19 — 90%

17:00 19° dry 19 — 91.7%

18:00 19° dry 17 — 93.5%

19:00 19° dry 18 — 96.3%

20:00 19° dry 19 — 97.4%

21:00 19° dry 20 — 95.8%

Mon Monday 7 September

Poor

Temp18°C

Rain2mm

Wind27 km/h

Gusts—

Humidity74%

1.8mm rain forecastWindy — 27 km/h, gusts 0 km/h

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 17° dry 26 — 78.5%

07:00 17° dry 26 — 80%

08:00 17° dry 21 — 77.6%

09:00 17° dry 21 — 76.4%

10:00 17° dry 20 — 78%

11:00 18° 0.1mm 19 — 75.9%

12:00 18° 0.2mm 25 — 73.6%

13:00 18° dry 27 — 72.6%

14:00 18° 0.1mm 28 — 71.9%

15:00 18° dry 32 — 72.1%

16:00 17° dry 35 — 71.3%

17:00 17° dry 37 — 72.4%

18:00 17° dry 40 — 72.1%

19:00 17° dry 40 — 77%

20:00 17° 0.3mm 43 — 79.2%

21:00 17° 0.2mm 43 — 78.9%

Tue Tuesday 8 September

Poor

Temp17°C

Rain2mm

Wind30 km/h

Gusts—

Humidity68%

2.2mm rain forecastWindy — 30 km/h, gusts 0 km/h

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 15° dry 30 — 74.5%

07:00 16° dry 30 — 73%

08:00 16° dry 26 — 65.8%

09:00 17° 0.1mm 30 — 63.9%

10:00 17° 0.2mm 29 — 70.8%

11:00 17° 0.1mm 29 — 69.9%

12:00 17° dry 30 — 63.6%

13:00 17° dry 30 — 65.2%

14:00 17° 0.2mm 30 — 67.2%

15:00 16° 0.2mm 30 — 68.6%

16:00 16° dry 31 — 67.8%

17:00 16° dry 33 — 67.3%

18:00 16° dry 35 — 68.9%

Wed Wednesday 9 September

Good

Temp16°C

Rain0.2mm

Wind19 km/h

Gusts—

Humidity72%

Should be dry

Good conditions for granite

Time °C Rain Wind (km/h) Gust Hum

06:00 15° dry 27 — 73.1%

12:00 16° dry 19 — 71.7%

18:00 16° dry 16 — 76.3%

Thu Thursday 10 September

Poor

Temp18°C

Rain1mm

Wind28 km/h

Gusts—

Humidity88%

1mm rain forecastWindy — 28 km/h, gusts 0 km/hHumidity 88% — potential fog

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 16° 0.2mm 25 — 84.5%

12:00 18° 0.1mm 28 — 88.1%

18:00 18° dry 20 — 86.8%

Fri Friday 11 September

Good

Temp17°C

Rain0.2mm

Wind24 km/h

Gusts—

Humidity81%

Should be dry

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 16° dry 29 — 88.5%

12:00 17° dry 24 — 80.6%

18:00 16° dry 22 — 71.6%

Sat Saturday 12 September

Poor

Temp17°C

Rain1mm

Wind22 km/h

Gusts—

Humidity70%

1mm rain forecast

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 15° dry 5 — 69.1%

12:00 17° 0.3mm 22 — 69.5%

18:00 18° 0.8mm 28 — 87.7%

Sun Sunday 13 September

Poor

Temp18°C

Rain0.6mm

Wind28 km/h

Gusts—

Humidity82%

0.6mm rain forecastWindy — 28 km/h, gusts 0 km/h

Good conditions for granite
Breezy — helps drying

Time °C Rain Wind (km/h) Gust Hum

06:00 18° dry 23 — 92%

12:00 18° 0.2mm 28 — 82.4%

18:00 18° dry 23 — 92.8%

Tidal access
Base traverse accessible ~3h either side of high tide. Terrier's Tooth and Bishop's Buttress accessible for longer. Scrambling descent into western end (Pegasus area) remains open at all tides.

Bird ban (03-15 to 06-30)
Bishop's Buttress (Laceration to The Mitre) and Zawn Rinny fully closed. Descent to the western end of Chair Ladder remains open.

About Chair Ladder

World-class multi-pitch granite sea cliff at Gwennap Head. South-facing — quick drying with sea breeze. Requires tidal access for most routes. Partial bird ban Mar–Jun on Bishop's Buttress and Zawn Rinny. The rock offers incredible friction, sharp granite edges, and immaculate vertical crack systems that take gear placements exceptionally well. Classics include Terrier's Tooth (HS 4b), Bishop's Rib (E1 5b), Ashpit Ridge (V Diff), and Pegasus (VS 4c). Approach is a fifteen-minute walk down from the coastguard station at Gwennap Head — Atlantic sea spray can leave salt residue on lower tiers.

Region: Cornwall
Rock type: Granite
Aspect: south-facing
Altitude: 15m
Exposure: high
Seepage: low

Other crags in this region

Bosigran Rosemergy Towers Sennen (Pedn-men-du)