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Chamonix Sud Long-Range Snow Forecast - 18th June 2026

Chamonix Sud Long-Range Snow Forecast Updated today

ECMWF IFS
GFS

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Updated 17 June 2026 21:41 UTC

Long-Range Snow Forecast for Chamonix Sud

Long-range (14 to 45 days) from 18 June.

For Forecast detail, see below.

Chamonix Sud 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?
There is no snow currently in the forecast for Chamonix Sud.
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Long-range Snow Outlook for Chamonix Sud

 
Snowfall

 
Snow Line

Max 30℃ 86°F
Min 14℃ 56°F

Snow unlikely

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Chamonix Sud Long-Range (2 weeks+) Snow Forecast Outlook

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.

16 Day Weather and Snow Forecast for Chamonix Sud from OpenMeteo(ECMWF IFS)
BaseSnow and WeatherTemp
Town
Thu
18
Clear

Clear sky.

Max 29℃ 84°F
Min 14℃ 56°F
Fri
19
Clear

Clear sky.

Max 27℃ 81°F
Min 15℃ 60°F
Sat
20
Clear

Clear sky.

Max 28℃ 82°F
Min 14℃ 58°F
Sun
21
Clear

Clear sky.

Max 29℃ 84°F
Min 15℃ 59°F
Mon
22
Fair

Clear sky at altitude, fair below.

Max 30℃ 86°F
Min 14℃ 57°F
Tue
23
Lt Drizzle

Clear sky at altitude, light drizzle below.

Max 26℃ 79°F
Min 16℃ 60°F
Wed
24
Clear

Light snow at altitude, light drizzle below.

Max 25℃ 78°F
Min 15℃ 58°F

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 21:41 UTC, next update expected 03:00 UTC.

Long-range ensemble forecasts for Chamonix Sud will be available shortly.

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.

Off-Piste Safety in Chamonix Sud

Before skiing or snowboarding off-piste in Chamonix Sud, you must assess the local snow conditions. Always check the local Avalanche Risk Level and ski with appropriate safety equipment.