Chamonix Weather Today Monday 29 April

Very mild and dry - sun often thickly veiled - windy at times in the mountains
Cloudiness: widespread clearings, but veiled by thick high clouds likely to be hung by the high peaks until mid-afternoon - less dense altitude cloudiness thereafter - sunshine: 45%

No precipitation

Winds according to altitude
in valley: NE -> very weak variable - slight SW during the afternoon
in medium mountains: S dominant - moderate - locally moderate to strong on the left bank of the valley this afternoon
in high mountains: SSW -> S moderate - temporarily moderate to strong

Temperatures in the valley:
min, +7°C
max, +18°C

Altitude of the isotherms:
0°C, 2800 ‑> 3000 m
-10°C, 4400 ‑> 4500 m

Tuesday 30 April

Persistence of dry weather - very mild with puffs of foehn in the afternoon - windy at altitude
Cloudiness: clearings and cloudy passages from the SSW, temporarily thick in the first part of the afternoon, white day in mid-mountains - sunshine: 40%

No precipitation

Wind at altitude: SSW -> S moderate to strong - temporarily moderate - puffs of foehn possible in the valley

Temperatures in the valley:
min, +10°C
max, +17°C

Wednesday 1 May

Uncertain - becoming unstable with risk of thunderstorms - strong wind possible at altitude
Cloudiness: fleeting clearings breaking through large rises of clouds by the S - sunshine: 20%

Risk of thunderstorms from the end of the morning, higher in the massifs - rain-snow limit variable between 2300 and 2500 m - quantities very variable depending on winds and exposure

Wind at altitude: SSW moderate to strong - temporarily strong - foehn puffs possible in the valley

Temperatures in the valley: stationary or slightly decreasing

Thursday 2 to Saturday 4 May Chamonix Weather