Chamonix Sud 7-Day Snow Forecast

Chamonix Sud Long-Range Snow Forecast Updated today

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Updated 12 July 2026 13:41 BST

Long-Range Snow Forecast for Chamonix Sud

Long-range (14 to 45 days) 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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Long-range Snow Outlook for Chamonix Sud

Snowfall

Snow Line

Max 31℃ 88°F
Min 13℃ 55°F

7cm 3in New Snow

Snow Line from 3,455m 11,335ft to 2,794m 9,167ft , with rain below.

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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)
	Snow and Weather	Temp Town
Sun 12	Clear sky.	Max 29℃ 84°F Min 14℃ 58°F
Mon 13	Light snow showers at altitude, light rain showers below.	Max 31℃ 88°F Min 17℃ 62°F
Tue 14	Clear spells at altitude, fair below.	Max 29℃ 84°F Min 18℃ 64°F
Wed 15	Fair at altitude, rain showers below.	Max 28℃ 83°F Min 18℃ 64°F
Thu 16	Clear sky.	Max 29℃ 85°F Min 16℃ 61°F
Fri 17	up to 5cm up to 2in New Snow Light snow at altitude, light rain below. Snow Line from 3,455m 11,335ft to 3,178m 10,427ft , with rain below.	Max 24℃ 75°F Min 15℃ 60°F
Sat 18	up to 2cm up to 1in New Snow Clear sky at altitude, light drizzle below. Snow Line from 3,055m 10,023ft to 2,794m 9,167ft , with rain below.	Max 24℃ 75°F Min 13℃ 55°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 13:41 BST, next update expected 19:00 BST.

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

What are Forecast Ensembles ? Multiple forecasts from running the same weather model with slightly different inputs. The prominent line (the 'control') is the model output from standard inputs, the thinner lines are the variations. Plotted together, they show a range of possible outcomes; the closer they are, the higher the confidence.

How to read Long Range Ensemble Forecasts

These forecasts are from ECMWF EC46, a long-range, low-resolution (area) model. They may not accurately reflect local conditions and should be read as area forecasts, indicating whether the coming weeks are likely to be warmer, colder, wetter, or drier than average.

What to look for?

Temperatures trending downward at the same time as precipitation spikes upward... means snow!

Lines close together indicate a high confidence, while wider spreads signal uncertainty.

Snow Forecast near Chamonix Sud

Snow Forecasts for Ski Resorts near Chamonix Sud
Ski Area	48 Hr	7 Day	Su	Mo	Tu	We	Th	Fr	Sa
Chamonix	-	7cm 3in

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.