Right now

Temp23°C

Wind7 km/h

Gusts10 km/h

Humidity45.9%

Rain 48hdry

Last rainNone recent

Assessment

No recent rain

7-day forecast

Scroll through each day — hourly detail is shown inline.

Today Tuesday 15 September

Good

Temp22°C

Raindry

Wind7 km/h

Gusts10 km/h

Humidity47%

No recent rain

Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

14:00 23° dry 7 — 45.9%

15:00 22° dry 7 — 46.3%

16:00 21° dry 7 — 48.9%

17:00 20° dry 5 — 58.4%

18:00 17° dry 3 — 70%

19:00 16° dry 4 — 75.8%

20:00 15° dry 5 — 77.7%

21:00 14° dry 5 — 77.9%

Wed Wednesday 16 September

Poor

Temp16°C

Rain17mm

Wind6 km/h

Gusts—

Humidity87%

16.7mm rain forecast

Good conditions for gneiss
Wet gneiss is slick — let the rock dry before leading
Damp air — friction edges may feel greasy

Time °C Rain Wind (km/h) Gust Hum

06:00 14° dry 3 — 85%

07:00 17° dry 4 — 82.1%

08:00 17° 0.2mm 4 — 78.6%

09:00 18° 0.3mm 5 — 74%

10:00 18° 1mm 6 — 72.5%

11:00 17° 3mm 7 — 78.4%

12:00 17° 2mm 6 — 83.9%

13:00 16° 3mm 7 — 90%

14:00 16° 0.9mm 7 — 92.8%

15:00 16° 2mm 5 — 94.4%

16:00 15° 1mm 5 — 94.7%

17:00 14° 2mm 5 — 98.8%

18:00 13° 0.8mm 5 — 99.4%

19:00 13° 0.4mm 5 — 99.8%

20:00 13° 0.1mm 5 — 99.3%

21:00 13° 0.2mm 4 — 98.9%

Thu Thursday 17 September

Caution

Temp16°C

Raindry

Wind6 km/h

Gusts—

Humidity68%

Drying — 14h since rain

Good conditions for gneiss
Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

06:00 11° dry 3 — 99.8%

07:00 11° dry 3 — 97.5%

08:00 12° dry 3 — 89.4%

09:00 14° dry 5 — 80.7%

10:00 15° dry 5 — 71.5%

11:00 16° dry 6 — 68.7%

12:00 16° dry 7 — 63.7%

13:00 17° dry 7 — 63.1%

14:00 16° dry 7 — 65.9%

15:00 16° dry 7 — 68.9%

16:00 15° dry 6 — 73.7%

17:00 14° dry 5 — 81.6%

18:00 12° dry 2 — 90.3%

19:00 11° dry 1 — 93.3%

20:00 11° dry 1 — 95.6%

21:00 10° dry 1 — 97.2%

Fri Friday 18 September

Good

Temp15°C

Raindry

Wind5 km/h

Gusts—

Humidity62%

Should be dry

Good conditions for gneiss
Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

06:00 6° dry 4 — 99.6%

12:00 15° dry 5 — 61.9%

18:00 12° dry 1 — 77.8%

Sat Saturday 19 September

Good

Temp18°C

Raindry

Wind5 km/h

Gusts—

Humidity50%

Should be dry

Good conditions for gneiss
Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

06:00 8° dry 2 — 77.3%

12:00 18° dry 5 — 50.3%

18:00 13° dry 1 — 87.8%

Sun Sunday 20 September

Good

Temp20°C

Raindry

Wind5 km/h

Gusts—

Humidity54%

Should be dry

Good conditions for gneiss
Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

06:00 12° dry 2 — 76.1%

12:00 20° dry 5 — 53.8%

18:00 15° dry 1 — 90%

Mon Monday 21 September

Good

Temp21°C

Raindry

Wind6 km/h

Gusts—

Humidity49%

Should be dry

Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

06:00 12° dry 2 — 52.7%

12:00 21° dry 6 — 48.7%

18:00 16° dry 1 — 80.1%

Tue Tuesday 22 September

Good

Temp22°C

Raindry

Wind6 km/h

Gusts—

Humidity47%

Should be dry

Gneiss climbs well when dry; foliation planes can hold moisture on shaded aspects

Time °C Rain Wind (km/h) Gust Hum

06:00 13° dry 2 — 67.7%

12:00 22° dry 6 — 46.8%

18:00 16° dry 1 — 86.5%

About Chamonix — Les Gaillands

The definitive Chamonix roadside crag by the lake — 130+ pitches on compact gneiss split by numerous cracks, developed in 1928 by Alfred Couttet and his student Roger Frison-Roche as arguably the first climbing school in France. Grades run from 2c up to around 7b but the strength of the venue is the density of routes below 5+, making it the go-to rainy-Chamonix fallback for family groups, novices and instructors. South and south-east facing so the wall dries fast once the sun hits it, and the impermeable gneiss doesn't hold water — but never climb it while genuinely wet, the polished holds turn greasy. Two-minute approach from the roadside car park; coffee bar and a small lake with pedaloes beside the crag. Views out to Mont Blanc and the Bossons glacier.

Region: Chamonix Valley
Rock type: Gneiss
Aspect: south-facing
Altitude: 1037m
Exposure: low
Seepage: low

Other crags in this region

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