Chamonix Sud 7-Day Snow Forecast

Chamonix Sud Long-Range Snow Forecast Updated today

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Updated 10 November 2026 19:40 UTC

Long-Range Snow Forecast for Chamonix Sud

Long-range (14 to 45 days) from 11 November.

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 Expected	12 November
Next Snow Amount	14cm 5in
Next 48 Hours	17cm 7in
Next 7 Days	63cm 25in
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Long-range Snow Outlook for Chamonix Sud

Snowfall

Snow Line

Max 14℃ 56°F
Min -3℃ 27°F

37cm 15in New Snow

Snow Line from 2,886m 9,469ft to 1,471m 4,826ft , with rain below.

Powder Alert!

Powder Alarm issued 10 November 2026 23:46 UTC

Powder Possible :- 14cm 6in of Fresh Snow is forecast for Chamonix Sud over the next 2 days.

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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
Wed 11	up to 13cm up to 5in New Snow Snow showers at altitude, rain showers below. Snow Line from 2,640m 8,661ft to 2,178m 7,146ft , with rain below.	Max 14℃ 58°F Min 8℃ 46°F
Thu 12	up to 4cm up to 2in New Snow Light snow at altitude, light drizzle below. Snow Line from 2,886m 9,469ft to 2,240m 7,349ft , with rain below.	Max 14℃ 56°F Min 6℃ 42°F
Fri 13	up to 12cm up to 5in New Snow Heavy snow showers at altitude, heavy rain showers below. Snow Line from 2,255m 7,398ft to 1,748m 5,735ft , with rain below.	Max 9℃ 49°F Min 5℃ 40°F
Sat 14	up to 4cm up to 2in New Snow Snow showers at altitude, rain showers below. Snow Line from 1,763m 5,784ft to 1,655m 5,430ft , with rain below.	Max 8℃ 47°F Min -3℃ 27°F
Sun 15	Clear sky.	Max 11℃ 52°F Min -2℃ 29°F
Mon 16	up to 6cm up to 3in New Snow Light snow showers at altitude, light rain showers below. Snow Line from 2,086m 6,844ft to 1,563m 5,128ft , with rain below.	Max 8℃ 47°F Min -1℃ 31°F
Tue 17	up to 2cm up to 1in New Snow Light snow at altitude, light drizzle below. Snow Line from 1,840m 6,037ft to 1,471m 4,826ft , with rain below.	Max 7℃ 44°F Min 1℃ 33°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 19:40 UTC, next update expected 01:00 UTC.

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.

France Accommodation (Apartments, Chalets, Hotels) Map

Snow Forecast near Chamonix Sud

Snow Forecasts for Ski Resorts near Chamonix Sud
Ski Area	48 Hr	7 Day
Chamonix	20cm 8in	70cm 27in
La Flégère	22cm 9in	83cm 33in
La Clusaz	19cm 7in	75cm 29in
Les Arcs	19cm 7in	65cm 26in
Flaine	14cm 6in	55cm 22in
Morzine	9cm 4in	40cm 16in
Avoriaz	7cm 3in	29cm 11in
Les Gets	3cm 1in	20cm 8in

How reliable is the snow in Chamonix Sud?

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.