Astún 7-Day Snow Forecast

Astún Long-Range Snow Forecast Updated today

ECMWF IFS

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Updated 25 September 2026 10:49 AEST

Long-Range Snow Forecast for Astún

Long-range (14 to 45 days) from 25 September.

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

Snowfall

Snow Line

Max 26℃
Min 8℃

Snow unlikely

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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
Fri 25	Clear sky.	Max 26℃ Min 10℃
Sat 26	Clear sky.	Max 24℃ Min 13℃
Sun 27	Cloudy.	Max 23℃ Min 12℃
Mon 28	Cloudy.	Max 18℃ Min 10℃
Tue 29	Light drizzle.	Max 18℃ Min 10℃
Wed 30	Cloudy.	Max 19℃ Min 11℃
Thu 01	Thunderstorms.	Max 12℃ Min 8℃

No significant snowfall is forecast for this period.

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 trail 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 10:49 AEST, next update expected 16:00 AEST.

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.

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.

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.