Right now

Temp21°C

Wind9 km/h

Gusts14 km/h

Humidity45.7%

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

Humidity47%

No recent rain

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

14:00 21° dry 9 — 45.7%

15:00 21° dry 9 — 46.6%

16:00 20° dry 9 — 49.3%

17:00 18° dry 6 — 59.2%

18:00 16° dry 3 — 70%

19:00 15° dry 4 — 73%

20:00 13° dry 5 — 75.3%

21:00 13° dry 5 — 75.5%

Wed Wednesday 16 September

Poor

Temp14°C

Rain17mm

Wind7 km/h

Gusts—

Humidity86%

16.7mm rain forecast

Wet limestone is dangerously slippery

Time °C Rain Wind (km/h) Gust Hum

06:00 13° 0.1mm 3 — 74.7%

07:00 14° 0.1mm 4 — 73.9%

08:00 15° 0.3mm 5 — 74.2%

09:00 16° 0.3mm 6 — 71.2%

10:00 17° 0.8mm 7 — 65.5%

11:00 15° 2mm 8 — 75%

12:00 15° 3mm 9 — 86%

13:00 13° 2mm 6 — 93.2%

14:00 13° 2mm 6 — 95.5%

15:00 14° 1mm 7 — 90.4%

16:00 12° 1mm 7 — 96.3%

17:00 11° 1mm 6 — 98.5%

18:00 11° 1mm 5 — 98.7%

19:00 11° 0.5mm 5 — 97.9%

20:00 10° 0.3mm 4 — 97.8%

21:00 10° 0.4mm 4 — 97.6%

Thu Thursday 17 September

Poor

Temp14°C

Rain0.1mm

Wind8 km/h

Gusts—

Humidity60%

Only 14h since rain — needs ~45h

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 9° dry 4 — 97.3%

07:00 9° dry 4 — 94.6%

08:00 10° dry 3 — 82.9%

09:00 12° dry 5 — 73%

10:00 13° dry 6 — 63.4%

11:00 14° dry 7 — 59.7%

12:00 15° dry 9 — 56%

13:00 15° dry 9 — 55.5%

14:00 15° dry 9 — 58.3%

15:00 14° dry 8 — 61.4%

16:00 13° dry 8 — 65%

17:00 12° dry 5 — 72.9%

18:00 10° dry 2 — 78.6%

19:00 9° dry 1 — 82.4%

20:00 9° dry 1 — 85.3%

21:00 7° dry 1 — 90.7%

Fri Friday 18 September

Caution

Temp13°C

Raindry

Wind5 km/h

Gusts—

Humidity58%

Drying — 38h since rain

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 5° dry 4 — 93.7%

12:00 13° dry 5 — 58.3%

18:00 10° dry 1 — 67.7%

Sat Saturday 19 September

Good

Temp16°C

Raindry

Wind5 km/h

Gusts—

Humidity53%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 6° dry 2 — 73.6%

12:00 16° dry 5 — 52.9%

18:00 12° dry 0 — 79.7%

Sun Sunday 20 September

Good

Temp19°C

Raindry

Wind6 km/h

Gusts—

Humidity49%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 9° dry 3 — 70.6%

12:00 19° dry 6 — 48.6%

18:00 13° dry 1 — 80.8%

Mon Monday 21 September

Good

Temp20°C

Raindry

Wind6 km/h

Gusts—

Humidity42%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 10° dry 3 — 53.2%

12:00 20° dry 6 — 41.7%

18:00 14° dry 2 — 72.6%

Tue Tuesday 22 September

Good

Temp21°C

Raindry

Wind5 km/h

Gusts—

Humidity41%

Should be dry

Limestone should be fine if dry

Time °C Rain Wind (km/h) Gust Hum

06:00 11° dry 3 — 65.4%

12:00 21° dry 5 — 40.5%

18:00 14° dry 1 — 73.3%

About Passy — Larses

South-facing limestone slab school crag at Plaine-Joux above Passy, with a superb Mont-Blanc panorama across the valley. Climbing is essentially in dalle — adhérence and small crimpy réglettes — the definitive dolomitic-limestone slab style. Grades 4b–6b+ for the Larses cliff itself. Fast-drying, open-aspect wall with good wind exposure — one of the most reliable "still dry" answers when Chamonix is fogged in. Approach a few minutes along the marked "rocher d'escalade" trail from the Plaine-Joux parking. Family-friendly base area, though the ground is stony and mildly chaotic for very small children.

Region: Passy
Rock type: Limestone
Aspect: south-facing
Altitude: 1400m
Exposure: medium
Seepage: low

Other crags in this region

Passy — Barmus