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Chamonix Weather Forecast - Daily Weather Report & 5 Day Forecast

 

Chamonix Weather Today Saturday 11 May

Fine weather - cool under clear skies this morning - warm this afternoon with moderate diurnal development

Cloudiness: clear this morning - a few cumulus clouds above the slopes in the afternoon, gaining a little volume locally - sunshine: 85%

The risk of precipitation is low, perhaps a few small isolated showers under the late afternoon cumulus clouds, along an axis Aravis - Aiguilles Rouges

Winds according to altitude
in the valley: NE very weak -> calm -> SW very weak
in mid-mountains: W dominant - very weak - temporarily WSW weak in the afternoon
in high mountains: weak NNE -> very weak N

Temperatures in the valley:
min, +4°C
max, +21°C

Altitude of the isotherms:
0°C, 3300 -> 3400 -> 3300 m
-10°C, 5200 m

Sunday 12 May

Quickly very mild morning under a veiling sun - very cloudy at the end of the afternoon

Cloudiness: hazy sun, then cloudy from the W at the end of the morning - very cloudy in the afternoon, thick cloud banks, but quite high - sunshine: 45%

The chance of precipitation appears low – it increases the following night

Wind aloft: weak WSW -> weak to moderate SW in the evening

Temperatures in the valley:
min, +8°C
max, +20°C

Monday 13 May

Uncertain - periods of showers - locally stormy in the afternoon

Cloudiness: slightly cloudy to cloudy with sunny spells in the morning - becoming very cloudy in the W - sunshine: 40%

Thunderstorms likely in the second part of the afternoon - rain-snow limit around 2600-2700 m

Wind aloft: WSW -> WNW weak to moderate

Temperatures in the valley: minimum rising - maximum falling

Tuesday 14 to Thursday 16 May Chamonix Weather
TUESDAY: passage of a disturbance from the W, warm front, then cold front - marked deterioration and cooling - morning showers evolving into continuous rain - rain-snow limit likely to drop towards 2500 m at times - SW becoming moderate to strong in the mountains, even gale-force at times
WEDNESDAY: gloomy and cool in the wake of the disturbance, low pressure context from S of Ireland to E of the Alps - frequent passages of locally heavy showers, with snow around 2000 m in the morning, higher in the afternoon - S to SW in altitude, at times quite strong
THURSDAY: the context remains low-pressure from the Bay of Biscay to Bavaria - cooling and humidity hold up over the Alps, still flowing from S to SW at altitude.