Siviez 7-Day Snow Forecast

Siviez Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 12 June 2026 10:46 NZST

Long-Range Snow Forecast for Siviez

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

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

Snowfall

Snow Line

Max 24℃
Min 2℃

1cm New Snow

Snow Line from 2,299m to 1,838m, with rain below.

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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
Thu 11	up to 1cm New Snow Light snow at altitude, light drizzle below. Snow Line from 2,299m to 1,838m, with rain below.	Max 12℃ Min 2℃
Fri 12	Fair at altitude, clear spells below.	Max 17℃ Min 2℃
Sat 13	Clear sky.	Max 20℃ Min 5℃
Sun 14	Clear spells.	Max 19℃ Min 7℃
Mon 15	Fair.	Max 18℃ Min 5℃
Tue 16	Clear sky at altitude, fair below.	Max 22℃ Min 5℃
Wed 17	Clear sky.	Max 24℃ Min 9℃

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 10:46 NZST, next update expected 16:00 NZST.

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
Bruson	2cm	2cm
Evolène	2cm	2cm
Nendaz	2cm	2cm
Four Valleys	1cm	1cm
Grimentz	2cm	2cm
Verbier	1cm	1cm
Veysonnaz	1cm	1cm

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.