Right now

Temp8°C

Wind1 km/h

Gusts2 km/h

Humidity93.8%

Rain 48hdry

Last rainNone recent

Assessment

No recent rain

High humidity (93.8%) — granite friction compromised, particularly for bouldering

Humidity 93.8% — potential fog/cloud, rock may be damp from condensation

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Friday 30 October

Good

Temp0°C

Raindry

Wind1 km/h

Gusts2 km/h

Humidity94%

No recent rain

Time °C Rain Wind (km/h) Gust Hum

10:00 — dry — — null%

18:00 8° dry 1 — 93.8%

19:00 7° dry 2 — 91.6%

20:00 6° dry 2 — 89.9%

21:00 6° dry 1 — 86.9%

Sat Saturday 31 October

Good

Temp12°C

Raindry

Wind5 km/h

Gusts—

Humidity53%

No recent rain

Good conditions for granite

Time °C Rain Wind (km/h) Gust Hum

06:00 4° dry 2 — 69%

07:00 4° dry 2 — 64%

08:00 5° dry 3 — 60.3%

09:00 8° dry 2 — 58.1%

10:00 11° dry 3 — 45.4%

11:00 12° dry 5 — 43.1%

12:00 13° dry 5 — 44.6%

13:00 13° dry 6 — 48.7%

14:00 13° dry 6 — 55.3%

15:00 12° dry 6 — 62.1%

16:00 11° dry 5 — 68.9%

17:00 9° dry 1 — 79.3%

18:00 7° dry 1 — 84.6%

19:00 7° dry 2 — 85.6%

20:00 6° dry 2 — 86.4%

21:00 5° dry 3 — 84%

Sun Sunday 1 November

Good

Temp9°C

Raindry

Wind7 km/h

Gusts—

Humidity49%

No recent rain

Time °C Rain Wind (km/h) Gust Hum

06:00 5° dry 3 — 51.8%

07:00 5° dry 3 — 53.3%

08:00 5° dry 4 — 57.6%

09:00 7° dry 5 — 51.7%

10:00 8° dry 5 — 48.3%

11:00 9° dry 6 — 45.4%

12:00 9° dry 7 — 43%

13:00 9° dry 8 — 43%

14:00 9° dry 8 — 46.7%

15:00 8° dry 8 — 52.5%

16:00 7° dry 8 — 61.2%

17:00 6° dry 5 — 72.3%

18:00 4° dry 5 — 80.7%

19:00 4° dry 6 — 81.4%

20:00 3° dry 6 — 81.1%

21:00 2° dry 5 — 81%

Mon Monday 2 November

Good

Temp8°C

Raindry

Wind4 km/h

Gusts—

Humidity58%

No recent rain

Time °C Rain Wind (km/h) Gust Hum

06:00 1° dry 2 — 48.9%

07:00 1° dry 2 — 44.7%

13:00 8° dry 4 — 57.5%

19:00 3° dry 1 — 94.9%

Tue Tuesday 3 November

Good

Temp9°C

Raindry

Wind4 km/h

Gusts—

Humidity52%

No recent rain

Time °C Rain Wind (km/h) Gust Hum

07:00 3° dry 1 — 54.7%

13:00 9° dry 4 — 51.8%

19:00 3° dry 1 — 88.7%

Wed Wednesday 4 November

Good

Temp10°C

Raindry

Wind1 km/h

Gusts—

Humidity54%

No recent rain

Good conditions for granite

Time °C Rain Wind (km/h) Gust Hum

07:00 3° dry 2 — 75%

13:00 10° dry 1 — 54.1%

19:00 4° dry 3 — 78.4%

Thu Thursday 5 November

Good

Temp11°C

Raindry

Wind1 km/h

Gusts—

Humidity47%

No recent rain

Good conditions for granite

Time °C Rain Wind (km/h) Gust Hum

07:00 2° dry 7 — 80.1%

13:00 11° dry 1 — 46.7%

19:00 5° dry 4 — 70.6%

Fri Friday 6 November

Good

Temp12°C

Raindry

Wind1 km/h

Gusts—

Humidity40%

No recent rain

Good conditions for granite

Time °C Rain Wind (km/h) Gust Hum

07:00 2° dry 4 — 67.4%

13:00 12° dry 1 — 40%

19:00 5° dry 2 — 63.3%

About Chamonix — Les Bossons

Granite blocks and short crag lines scattered through the shady sub-glacier woodland below the Bossons ice tongue, developed by the Chamonix club from the late 1990s. The dense forest canopy keeps the venue several degrees cooler than the open Gaillands lake shore on hot afternoons — genuine hot-weather refuge — but that same canopy slows drying, so give the boulders longer than the sun-exposed valley crags after rain. 15-minute walk up through the village from the bus stop.

Region: Chamonix Valley
Rock type: Granite
Aspect: mixed-facing
Altitude: 1111m
Exposure: low
Seepage: medium

Other crags in this region

Chamonix — Bois du Bouchet Chamonix — Le Chapeau Chamonix — Les Gaillands Servoz