Siviez 7-Day Snow Forecast

Siviez Long-Range Snow Forecast

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Long-Range Snow Forecast for Siviez

This is the Long-range (10, 14 and 45 day)Snow Forecast for Siviez from 13 January.

Updated 13 January 2026 02:09 UTC.

For Forecast detail, see below.

Siviez Snow Forecast Highlights

When will there be fresh snow in Siviez?

Siviez Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,215m)
Next Snow Expected	17 January
Next Snow Amount	2cm 1in
Next 48 Hours	- -
Next 7 Days	3cm 1in
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Siviez

Snowfall

Snow Line

5cm 2in New Snow

Snow Line from 1,761m 5,778ft to resort level ( 1,730m 5,676ft ).

Siviez has up to 22cm 9in new snow forecast in the next 14 days.*
ECMWF IFS - at altitude

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Siviez 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 Siviez from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Tue 13	Cloudy.	Max 3℃ 38°F Min -7℃ 19°F
Wed 14	Clear spells at altitude, fair below.	Max 2℃ 35°F Min -8℃ 17°F
Thu 15	Clear sky.	Max 2℃ 36°F Min -8℃ 18°F
Fri 16	Clear spells at altitude, cloudy below.	Max 1℃ 34°F Min -9℃ 16°F
Sat 17	1cm to 4cm up to 2in New Snow Heavy snow showers at altitude, heavy rain showers below. Snow Line from 1,761m 5,778ft to resort level ( 1,730m 5,676ft ).	Max 2℃ 35°F Min -5℃ 24°F
Sun 18	1cm New Snow Cloudy. Snow falling to resort level ( 1,730m 5,676ft ).	Max 0℃ 32°F Min -5℃ 24°F
Mon 19	Cloudy.	Max 2℃ 35°F Min -6℃ 22°F

This Snow Forecast for Siviez, Switzerland 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 Siviez, 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.

Siviez Snow Forecast updated at 02:09 UTC, next update expected 08:00 UTC.

Ensemble forecast for Siviez, Switzerland at 1,730m

Daily Mean Temperature (yellow line is control)

Daily Total Precipitation (blue line is control)

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 Siviez

Snow Forecasts for Ski Resorts near Siviez
Ski Area	48 Hr	7 Day
Zermatt	-	36cm 14in
Breuil-Cervinia	-	28cm 11in
Grimentz	-	13cm 5in
Verbier	-	11cm 4in
Argentière	-	8cm 3in
Four Valleys	-	5cm 2in
Bruson	-	3cm 1in
Veysonnaz	-	3cm 1in

Snow Reliability

Siviez boasts reliable snow conditions with an average snow depth of 150 cm during peak season. The region typically experiences good snowfall, but it’s best to check the latest snow info on J2Ski for up-to-date conditions.

Off-Piste Safety in Siviez

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