Astún 7-Day Snow Forecast

Astún Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 20 March 2026 19:40 CDT

Long-Range Snow Forecast for Astún

Long-range (14 to 45 days) from 21 March.

For Forecast detail, see below.

Astún Snow Forecast Highlights

When will there be fresh snow in Astún?

Astún Snow Forecast Highlights - ECMWF IFS
Snowfall prediction at mid-mountain (2,000m)
Next Snow Expected	26 March
Next Snow Amount	5cm
Next 48 Hours	-
Next 7 Days	7cm
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Long-range Snow Outlook for Astún

Snowfall

Snow Line

Max 10℃
Min -6℃

6cm New Snow

Snow falling to resort level (1,700m).

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Astún 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 Astún from OpenMeteo(ECMWF IFS)
	Snow and Weather	Temp Town
Sat 21	Clear sky.	Max 10℃ Min -2℃
Sun 22	Clear sky.	Max 10℃ Min -6℃
Mon 23	Clear sky.	Max 9℃ Min -3℃
Tue 24	Cloudy.	Max 10℃ Min -4℃
Wed 25	Light snow showers.	Max 7℃ Min -3℃
Thu 26	5cm New Snow Heavy snow showers. Snow falling to resort level (1,700m).	Max -2℃ Min -5℃
Fri 27	Light snow showers.	Max -1℃ Min -6℃

This Snow Forecast for Astún, Spain 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 Astún, 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.

Astún Snow Forecast updated at 19:40 CDT, next update expected 01:00 CDT.

Ensemble forecast for Astún, Spain at 1,700m

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.

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Snow Forecast near Astún

Snow Forecasts for Ski Resorts near Astún
Ski Area	48 Hr	7 Day
Panticosa	-	25cm
Aramon	-	18cm
Formigal	-	22cm
Candanchú	-	20cm

Snow Reliability

Astún typically enjoys good snow reliability, with an average snow depth of around 80 cm during peak season. For the latest snow conditions, be sure to check updates on J2Ski.

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Off-Piste Safety in Astún

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

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