Right now

Temp22°C

Wind9 km/h

Gusts14 km/h

Humidity49.9%

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

Temp21°C

Raindry

Wind9 km/h

Gusts14 km/h

Humidity52%

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 22° dry 9 — 49.9%

15:00 21° dry 9 — 51.4%

16:00 20° dry 9 — 53.9%

17:00 19° dry 6 — 60.9%

18:00 16° dry 3 — 76.1%

19:00 15° dry 3 — 79%

20:00 14° dry 3 — 80%

21:00 13° dry 3 — 78.6%

Wed Wednesday 16 September

Poor

Temp15°C

Rain13mm

Wind7 km/h

Gusts—

Humidity86%

12.5mm rain forecastHumidity 86% — potential fog

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 15° dry 3 — 74.8%

07:00 16° dry 4 — 71.4%

08:00 17° 0.2mm 5 — 72.4%

09:00 17° 0.3mm 6 — 71.2%

10:00 18° 0.3mm 7 — 65.9%

11:00 17° 1mm 8 — 68.4%

12:00 16° 1mm 8 — 85%

13:00 15° 1mm 6 — 95.4%

14:00 14° 0.9mm 6 — 95.7%

15:00 14° 1mm 6 — 96.8%

16:00 13° 1mm 6 — 97.6%

17:00 13° 1mm 5 — 98.9%

18:00 12° 1mm 5 — 99.8%

19:00 12° 0.7mm 5 — 99.8%

20:00 11° 0.4mm 5 — 99.5%

21:00 11° 0.4mm 5 — 99.5%

Thu Thursday 17 September

Caution

Temp15°C

Rain0.1mm

Wind6 km/h

Gusts—

Humidity65%

Drying — 13h 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 9° dry 4 — 99.2%

07:00 10° dry 4 — 97.2%

08:00 11° dry 3 — 85.1%

09:00 13° dry 4 — 74.7%

10:00 14° dry 5 — 66.2%

11:00 15° dry 6 — 65.3%

12:00 16° dry 6 — 60.4%

13:00 16° dry 7 — 59.6%

14:00 16° dry 7 — 62.8%

15:00 15° dry 6 — 66.2%

16:00 14° dry 6 — 71.1%

17:00 13° dry 5 — 78.3%

18:00 11° dry 2 — 88.9%

19:00 10° dry 1 — 95%

20:00 10° dry 1 — 98.1%

21:00 9° dry 1 — 99.2%

Fri Friday 18 September

Good

Temp13°C

Rain0.1mm

Wind5 km/h

Gusts—

Humidity65%

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 7° dry 4 — 93.4%

12:00 13° dry 5 — 64.9%

18:00 11° dry 1 — 78.4%

Sat Saturday 19 September

Good

Temp17°C

Raindry

Wind4 km/h

Gusts—

Humidity57%

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 1 — 71.6%

12:00 17° dry 4 — 57.2%

18:00 13° dry 1 — 87.2%

Sun Sunday 20 September

Good

Temp20°C

Raindry

Wind5 km/h

Gusts—

Humidity51%

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 — 65.1%

12:00 20° dry 5 — 51.3%

18:00 14° dry 1 — 89.7%

Mon Monday 21 September

Good

Temp21°C

Raindry

Wind6 km/h

Gusts—

Humidity43%

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 3 — 47.8%

12:00 21° dry 6 — 42.5%

18:00 14° dry 2 — 82.8%

Tue Tuesday 22 September

Good

Temp21°C

Raindry

Wind5 km/h

Gusts—

Humidity41%

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 3 — 63.7%

12:00 21° dry 5 — 40.8%

18:00 15° dry 1 — 80.6%

About Aiguillette d'Argentière

Large monolithic gneiss spire in the Aiguilles Rouges above Argentière — the classic mid-mountain multi-pitch venue of the Chamonix Valley, with routes on every face. 100m-tall gneiss slabs give excellent friction and adhesion; short 4c–6b sport pitches plus multi-pitch classics like La Fée des Druides (4 pitches, 150m, 5a–5c). Historic lines carry alpinist names: La Biscante is Lachenal's nickname (the NE ridge integral), the Rébuffat–Terray takes the north face. Approach one hour from the Tré le Champ parking (1416m) up the Tour du Mont-Blanc trail. At 1843m the venue is high enough that the fog and condensation rule fires often on humid summer mornings — trust it. Multi-aspect summit means sun or shade always available on a different face; descent by rappel.

Region: Aiguilles Rouges
Rock type: Gneiss
Aspect: south-facing
Altitude: 1843m
Exposure: high
Seepage: low

Other crags in this region

Le Brévent