Siviez 7-Day Snow Forecast

Siviez Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 03 May 2026 01:43 NZST

Long-Range Snow Forecast for Siviez

Long-range (14 to 45 days) from 2 May.

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	6 May
Next Snow Amount	2cm
Next 48 Hours	-
Next 7 Days	3cm
Save on Ski Hire	Save up to 50%

Long-range Snow Outlook for Siviez

Snowfall

Snow Line

Max 16℃
Min -2℃

11cm New Snow

Snow Line from 2,622m to resort level (1,730m).

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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
Sat 02	Fair.	Max 16℃ Min 1℃
Sun 03	Cloudy.	Max 15℃ Min 2℃
Mon 04	up to 1cm New Snow Light snow showers at altitude, light rain showers below. Snow falling to 2,407m, with rain below.	Max 12℃ Min 2℃
Tue 05	Cloudy at altitude, light rain below.	Max 11℃ Min 0℃
Wed 06	1cm to 9cm New Snow Snow showers at altitude, light rain below. Snow Line from 2,622m to resort level (1,730m).	Max 8℃ Min 0℃
Thu 07	up to 1cm New Snow Clear sky. Snow Line from 1,822m to 1,807m, with rain below.	Max 11℃ Min 2℃
Fri 08	Cloudy at altitude, rain showers below.	Max 12℃ Min -2℃

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 01:43 NZST, next update expected 07:00 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
Verbier	2cm	25cm
Grimentz	-	23cm
Four Valleys	2cm	22cm
Evolène	1cm	17cm
Argentière	2cm	16cm
Nendaz	-	15cm
Breuil-Cervinia	3cm	14cm
Bruson	-	10cm

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.