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Chamonix Sud 7-Day Snow Forecast - 12th May 2026

Chamonix Sud Snow Forecast - 7 day

ECMWF IFS
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Updated 12 May 2026 14:45 CDT

7-Day Snow Forecast for Chamonix Sud

1-week from 12 May.

For Forecast detail, see below.

Chamonix Sud 7-Day Snow Forecast Highlights

When will there be fresh snow in Chamonix Sud?

Chamonix Sud Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,440m)
Next Snow Expected12 May
Next Snow Amount8cm
Next 48 Hours22cm
Next 7 Days28cm
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7-Day Snow Outlook for Chamonix Sud

 
Snowfall

 
Snow Line

Max 13℃
Min -1℃

30cm New Snow

Snow Line from 2,763m to resort level (1,040m).

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Chamonix Sud Medium-Range (7-Day) Snow Forecast Detail

Note :- Mountain weather is extremely dynamic; the forecast below will change. Any forecast snow may move forward or back in the forecast, and predicted snowfall depths will be revised in subsequent updates.

Max 10℃
Min 3℃

Valley temperatures from an overnight low of 3℃ to daytime highs around 10℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Tue
12

up to 8cm New Snow

MixedLight SnowMixedCloud

Clear spells first, light snow at altitude then clear spells, cloudy later.

Snow Line from 1,655m to 1,255m, with rain below.

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

Max 12℃
Min 4℃

Valley temperatures from an overnight low of 4℃ to daytime highs around 12℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Wed
13

Snow unlikely

CloudCloudMixedLight Snow

Cloudy, clear spells, light snow at altitude later.

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

Max 6℃
Min 1℃

Valley temperatures from an overnight low of 1℃ to daytime highs around 6℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Thu
14

2cm to 13cm New Snow

MixedMixedLight SnowSnow

Clear spells, light snow at altitude, snow showers later.

Snow Line from 1,686m to resort level (1,040m).

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

Max 5℃
Min -1℃

Valley temperatures from an overnight low of -1℃ to daytime highs around 5℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Fri
15

3cm to 6cm New Snow

Light SnowCloudLight SnowMixed

Light snow first, cloudy then light snow at altitude, clear spells later.

Snow Line from 1,625m to resort level (1,040m).

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

Max 8℃
Min 1℃

Valley temperatures from an overnight low of 1℃ to daytime highs around 8℃

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sat
16

up to 1cm New Snow

MixedMixedLt DrizzleMixed

Clear spells, light drizzle, clear spells later.

Snow Line from 1,963m to 1,302m, with rain below.

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

Max 12℃
Min 2℃

Valley temperatures from an overnight low of 2℃ to daytime highs around 12℃

Temperature at BaseTemp at Base

Sun
17

Snow unlikely

MixedCloudMixedMixed

Clear spells, cloudy, clear spells later.

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

Max 13℃
Min 1℃

Valley temperatures from an overnight low of 1℃ to daytime highs around 13℃
Freeze-thaw (spring snow) from mid-mountain up.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Mon
18

up to 2cm New Snow

FairLt RainLt DrizzleLt Rain

Fair first, light rain showers then light drizzle, light rain showers later.

Snow Line from 2,763m to 2,255m, with rain below.

Forecast times for Chamonix Sud are in Paris (Europe/Paris) time zone.

This Snow Forecast for Chamonix Sud, France gives the predicted Snowfall and Freezing Levels for the next week.

The forecast snowfall depths given are the likely average accumulations for the Lower and Upper slopes. The actual snow depth in Chamonix Sud, on any given piste or itinerary, may be dramatically different, particularly if the snowfall is accompanied by high winds and/or varying air temperatures.

Snow Forecasts beyond two days ahead are subject to significant change and variable reliability.

Chamonix Sud Snow Forecast updated at 14:45 CDT, next update expected 20:00 CDT.

Snow Forecast near Chamonix Sud

Snow Forecasts for Ski Resorts near Chamonix Sud
Ski Area 48 Hr 7 DayTuWeThFrSaSuMo
Avoriaz24cm 34cm
Chamonix22cm 30cm
Flaine21cm 27cm
Morzine19cm 27cm
Les Gets19cm 26cm
La Flégère19cm 25cm
Les Houches20cm 24cm
La Clusaz15cm 23cm

Snow Reliability

Chamonix Sud generally sees a snow depth of around 180 cm in winter, with reliable snowfall throughout the season. For the latest snow conditions, including updates on snowmelt and depth, visit J2Ski.