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Chamonix Sud Snow Forecast - 12th July 2026

Chamonix Sud Snow Report and Forecast

ECMWF IFS
GFS

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Updated 12 July 2026 01:42 CDT

Snow Forecast for Chamonix Sud

Snow and Weather from 12 July.

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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Forecast for today in Chamonix Sud

Max 29℃
Min 14℃

Valley temperatures from an overnight low of 14℃ to daytime highs around 29℃
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

Sun
12

Snow unlikely

ClearClearLt DrizzleClear

Clear sky, light drizzle, clear sky later.

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

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Chamonix Sud 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Chamonix Sud from OpenMeteo(ECMWF IFS)
Sun
12
Mon
13
Tue
14
Wed
15
Thu
16
Fri
17
Sat
18
Wind
3,840m
10℃
Clear
11℃
Mixed
10℃
Mixed
9℃
Lt Drizzle
8℃
Clear
6℃
Lt Snow Shwrs
+2cm
5℃
Clear
2,440m
16℃
Clear
18℃
Mixed
17℃
Mixed
16℃
Lt Drizzle
15℃
Fair
13℃
Hvy Drizzle
12℃
Clear
1,040m
29℃
Clear
31℃
Cloud
29℃
Mixed
29℃
Clear
27℃
Clear
25℃
Shwrs
24℃
Lt Drizzle
Snow Line

varying 3,702m
to 3,255m

varying 3,286m
to 3,071m

Max Town29℃31℃29℃29℃27℃25℃24℃
Min Town14℃17℃17℃18℃17℃16℃15℃

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

Snow Forecast near Chamonix Sud

Snow Forecasts for Ski Resorts near Chamonix Sud
Ski Area 48 Hr 7 DaySuMoTuWeThFrSa
Chamonix-3cm

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.

Understanding and predicting Snow Conditions in Chamonix Sud

Here are our tips for making the most of a trip to Chamonix Sud, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Chamonix Sud, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Chamonix Sud is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Chamonix Sud will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Chamonix Sud for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.