Antillanca 7-Day Snow Forecast

Antillanca Long-Range Snow Forecast Updated today

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Updated 20 September 2026 21:52 NZST

Long-Range Snow Forecast for Antillanca

Long-range (14 to 45 days) from 20 September.

For Forecast detail, see below.

Antillanca Snow Forecast Highlights

When will there be fresh snow in Antillanca?

Antillanca Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (1,385m)
Next Snow Expected	20 September
Next Snow Amount	12cm
Next 48 Hours	21cm
Next 7 Days	23cm

Long-range Snow Outlook for Antillanca

Snowfall

Snow Line

Max 10℃
Min -3℃

29cm New Snow

Snow Line from 1,669m to resort level (1,070m).

Powder Alert!

Powder Alarm issued 20 September 2026 22:04 NZST

Powder Possible :- 21cm of Fresh Snow is forecast for Antillanca over the next 2 days.

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Antillanca 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 Antillanca from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Sun 20	7cm to 12cm New Snow Light snow showers at altitude, rain below. Snow Line from 1,669m to resort level (1,070m).	Max 4℃ Min -1℃
Mon 21	5cm to 6cm New Snow Light snow showers. Snow falling to resort level (1,070m).	Max 2℃ Min -3℃
Tue 22	3cm to 4cm New Snow Light snow. Snow Line from 1,549m to resort level (1,070m).	Max 1℃ Min -3℃
Wed 23	Rain.	Max 6℃ Min 1℃
Thu 24	Heavy drizzle.	Max 7℃ Min 5℃
Fri 25	up to 6cm New Snow Light snow. Snow Line from 1,529m to resort level (1,070m).	Max 5℃ Min 2℃
Sat 26	up to 1cm New Snow Clear spells. Snow Line from 1,639m to 1,479m, with rain below.	Max 10℃ Min 3℃

This Snow Forecast for Antillanca, Chile 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 Antillanca, 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.

Antillanca Snow Forecast updated at 21:52 NZST, next update expected imminently.

Ensemble forecast for Antillanca, Chile at 1,070m

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.

Chile Accommodation (Apartments, Chalets, Hotels) Map

Snow Reliability

Antillanca typically enjoys reliable snow conditions with an average snow depth of 1.5 to 3 meters during peak season. Regular snowfall ensures great skiing opportunities, but it's advisable to check the latest snow information on J2Ski for updates.

Off-Piste Safety in Antillanca

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