Arosa 7-Day Snow Forecast

Arosa Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 01 September 2026 01:41 BST

Long-Range Snow Forecast for Arosa

Long-range (14 to 45 days) from 1 September.

For Forecast detail, see below.

Arosa Snow Forecast Highlights

When will there be fresh snow in Arosa?

Arosa Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,195m)
Next Snow Expected	14 September
Next Snow Amount	3cm 1in
Next 48 Hours	- -
Next 7 Days	- -
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Long-range Snow Outlook for Arosa

Snowfall

Snow Line

Max 25℃ 77°F
Min 5℃ 41°F

Snow unlikely

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Arosa 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 Arosa from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Tue 01	Light snow at altitude, light rain below.	Max 17℃ 63°F Min 5℃ 41°F
Wed 02	Clear spells at altitude, cloudy below.	Max 19℃ 65°F Min 5℃ 42°F
Thu 03	Clear sky.	Max 20℃ 67°F Min 6℃ 44°F
Fri 04	Clear sky.	Max 25℃ 77°F Min 8℃ 46°F
Sat 05	Cloudy.	Max 22℃ 72°F Min 11℃ 51°F
Sun 06	Clear sky.	Max 25℃ 77°F Min 11℃ 51°F
Mon 07	Clear sky.	Max 23℃ 73°F Min 12℃ 54°F

This Snow Forecast for Arosa, 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 Arosa, 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.

Arosa Snow Forecast updated at 01:41 BST, next update expected 07:00 BST.

Ensemble forecast for Arosa, Switzerland at 1,740m

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.

Switzerland Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Arosa typically enjoys reliable snow conditions, with an average snow depth of around 100 cm during peak season. For the latest updates on snowfall and conditions, check J2Ski for accurate information.

Off-Piste Safety in Arosa

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