Cerro Castor 7-Day Snow Forecast

Cerro Castor Long-Range Snow Forecast Updated today

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Updated 18 September 2026 19:50 UTC

Long-Range Snow Forecast for Cerro Castor

Long-range (14 to 45 days) from 19 September.

For Forecast detail, see below.

Cerro Castor Snow Forecast Highlights

When will there be fresh snow in Cerro Castor?

Cerro Castor Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (585m)
Next Snow Expected	20 September
Next Snow Amount	2cm 1in
Next 48 Hours	2cm 1in
Next 7 Days	3cm 1in

Long-range Snow Outlook for Cerro Castor

Snowfall

Snow Line

Max 7℃ 44°F
Min -5℃ 23°F

4cm 2in New Snow

Snow Line from 459m 1,506ft to resort level ( 195m 640ft ).

Cerro Castor 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 Cerro Castor from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Sat 19	up to 1cm New Snow Clear sky. Snow Line from 219m 719ft to resort level ( 195m 640ft ).	Max 5℃ 41°F Min -2℃ 29°F
Sun 20	2cm 1in New Snow Cloudy. Snow falling to resort level ( 195m 640ft ).	Max 2℃ 35°F Min -3℃ 26°F
Mon 21	Clear sky.	Max 3℃ 38°F Min -5℃ 23°F
Tue 22	Clear sky.	Max 5℃ 40°F Min -4℃ 24°F
Wed 23	up to 1cm up to 1in New Snow Cloudy. Snow Line from 459m 1,506ft to resort level ( 195m 640ft ).	Max 4℃ 39°F Min -3℃ 27°F
Thu 24	Clear sky.	Max 5℃ 40°F Min -3℃ 27°F
Fri 25	Clear sky.	Max 7℃ 44°F Min -2℃ 28°F

This Snow Forecast for Cerro Castor, Argentina 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 Cerro Castor, 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.

Cerro Castor Snow Forecast updated at 19:50 UTC, next update expected imminently.

Ensemble forecast for Cerro Castor, Argentina at 195m

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.

Argentina Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Cerro Castor typically enjoys a snow depth of 50-100 cm, with reliable snowfall from June to October. For the latest snow conditions, check J2Ski for up-to-date information.

Off-Piste Safety in Cerro Castor

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