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Antillanca Snow Forecast - 19th September 2026

Antillanca Snow Report and Forecast

ECMWF IFS
GEM
GFS

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Updated 19 September 2026 03:44 UTC

Snow Forecast for Antillanca

Snow and Weather from 19 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 Expected20 September
Next Snow Amount 8cm 3in
Next 48 Hours 15cm 6in
Next 7 Days 22cm 9in

Forecast for today in Antillanca

Max 14℃ 57°F
Min 3℃ 37°F

Valley temperatures from an overnight low of 3℃ 37°F to daytime highs around 14℃ 57°F
Freeze-thaw conditions up high.

Temperature at BaseTemp at Base

 
Snowfall

 
Snow Line

Sat
19

up to 1cm New Snow

CloudClearCloudCloud

Cloudy, clear sky, cloudy later.

Snow Line from 1,469m 4,820ft to 1,379m 4,524ft , with rain below.

Forecast times for Antillanca are in Santiago (America/Santiago) time zone.

Powder Alert!

Powder Alarm issued 19 September 2026 06:47 UTC

Powder Possible :- 15cm 6in of Fresh Snow is forecast for Antillanca over the next 2 days.

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Antillanca 7-Day Snow Forecast Overview

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Summary Weather and Snow Forecast for Antillanca from OpenMeteo(GFS)
Sat
19
Sun
20
Mon
21
Tue
22
Wed
23
Thu
24
Fri
25
WindW F2NW F3NW F2
1,700m 5,577ft
10℃ 49°F
Cloud
+1cm
0℃ 32°F
Lt Snow Shwrs
+10cm +4in
-2℃ 27°F
Lt Snow Shwrs
+6cm +2in
-3℃ 27°F
Snow
+7cm +3in
1℃ 33°F
Light Snow
+2cm +1in
3℃ 37°F
Lt Rain
2℃ 35°F
Shwrs
W F2NW F3NW F2
1,385m 4,544ft
12℃ 53°F
Cloud
2℃ 36°F
Lt Snow Shwrs
+8cm +3in
0℃ 31°F
Lt Snow Shwrs
+6cm +2in
-1℃ 31°F
Snow
+7cm +3in
3℃ 37°F
Lt Drizzle
5℃ 40°F
Lt Rain
4℃ 39°F
Shwrs
W F2NW F3NW F2
1,070m 3,510ft
14℃ 57°F
Cloud
4℃ 39°F
Snow
+5cm +2in
2℃ 35°F
Light Snow
+5cm +2in
1℃ 34°F
Snow
+4cm +2in
5℃ 41°F
Lt Drizzle
7℃ 44°F
Lt Rain
6℃ 43°F
Shwrs
Snow Line

varying 1,469m 4,820ft
to 1,379m 4,524ft

varying 1,539m 5,049ft
to 1,070m 3,510ft

1,070m 3,510ft

varying 1,359m 4,459ft
to 1,070m 3,510ft

varying 1,689m 5,541ft
to 1,639m 5,377ft

Max Town 14℃ 57°F 4℃ 39°F 2℃ 35°F 1℃ 34°F 5℃ 41°F 7℃ 44°F 6℃ 43°F
Min Town 3℃ 37°F -1℃ 30°F -2℃ 28°F -3℃ 27°F 1℃ 33°F 5℃ 41°F 4℃ 40°F

This table shows the average forecast snowfall, the maximum temperature, and expected general weather at resort, lower and upper mountain levels. For daily forecast details, see below.

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.

Understanding and predicting Snow Conditions in Antillanca

Here are our tips for making the most of a trip to Antillanca, with the help of the J2Ski Snow forecasts and reports. You can find some great skiing in Antillanca, but like any mountain, snow conditions change throughout the season, from day to day, and even from hour to hour.

Whether you’re sticking to the marked pistes or venturing off-piste, here’s what you need to know:

Pistes (Groomers) or Off-Piste

These can be a world apart, regarding snow conditions, even ignoring the difference between the natural terrain features to be found off-piste and the generally controlled surfaces and slopes of a pisted (groomed) run.

  • Piste Conditions can range from fresh powder to firm, icy surfaces, particularly after warm spells or a busy day on the mountain with the passage of many skiers.
  • Off-Piste Conditions are far more variable. Wind and sun can quickly transform fresh snow into wind crust or slushy layers, whilst cold weather can preserve stashes of powder many days after a snowfall.

WARNING - skiing off-piste (out-of-bounds) at Antillanca is uncontrolled and un-marked slopes are not made safe (from avalanche risk) or patrolled. Always check local advice, know the Avalanche Risk Level, ski with safety kit (and know how to use it), and never ski alone.

Analyzing Weather and Snowfall Forecasts

Whilst no forecast can tell you exactly how snow conditions in Antillanca will develop, checking the forecast regularly should give you an idea of what to expect.

New snowfall can bring fresh powder and refresh the surfaces of pisted runs. Powder can be tracked out quickly at busy times, but in less crowded and shaded areas, fresh snow can linger for days.

Changes in weather conditions, such as milder temperatures, rain or wind, can degrade snow quality. Conversely, cold, stable weather can preserve conditions for extended periods.

Predicting Future Snow Quality

Regularly check our snow and weather forecasts for Antillanca for changes that may affect snow quality. Forecast snowfall depth and recent snowfall are good indicators of what to expect.

Use historical data and recent snow reports to understand past snow conditions and anticipate future changes.