Portillo 7-Day Snow Forecast

Portillo Long-Range Snow Forecast Updated today

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Updated 02 October 2026 18:43 BST

Long-Range Snow Forecast for Portillo

Long-range (14 to 45 days) from 2 October.

For Forecast detail, see below.

Portillo Snow Forecast Highlights

When will there be fresh snow in Portillo?

Portillo Snow Forecast Highlights - GFS
Snowfall prediction at mid-mountain (2,930m)
Next Snow Expected	2 October
Next Snow Amount	4cm 2in
Next 48 Hours	14cm 5in
Next 7 Days	109cm 43in

Long-range Snow Outlook for Portillo

Snowfall

Snow Line

Max 4℃ 40°F
Min -8℃ 18°F

117cm 46in New Snow

Snow Line from 3,239m 10,627ft to resort level ( 2,560m 8,399ft ).

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Portillo 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 Portillo from OpenMeteo(GFS)
	Snow and Weather	Temp Town
Fri 02	2cm to 16cm 1in to 6in New Snow Snow showers at altitude, rain showers below. Snow Line from 3,239m 10,627ft to resort level ( 2,560m 8,399ft ).	Max 4℃ 40°F Min -5℃ 24°F
Sat 03	1cm to 2cm up to 1in New Snow Clear sky. Snow Line from 2,779m 9,117ft to resort level ( 2,560m 8,399ft ).	Max 4℃ 38°F Min -8℃ 18°F
Sun 04	5cm to 6cm 2in New Snow Snow showers. Snow Line from 2,659m 8,724ft to resort level ( 2,560m 8,399ft ).	Max 3℃ 38°F Min -5℃ 24°F
Mon 05	10cm to 18cm 4in to 7in New Snow Heavy snow showers. Snow falling to resort level ( 2,560m 8,399ft ).	Max 0℃ 33°F Min -2℃ 29°F
Tue 06	1cm to 53cm up to 21in New Snow Heavy snow at altitude, rain below. Snow Line from 2,799m 9,183ft to resort level ( 2,560m 8,399ft ).	Max 2℃ 36°F Min 1℃ 33°F
Wed 07	up to 21cm up to 8in New Snow Light snow showers at altitude, light rain showers below. Snow Line from 2,919m 9,577ft to resort level ( 2,560m 8,399ft ).	Max 3℃ 37°F Min 1℃ 34°F
Thu 08	up to 1cm up to 1in New Snow Light snow. Snow Line from 2,759m 9,052ft to resort level ( 2,560m 8,399ft ).	Max 3℃ 37°F Min -4℃ 25°F

This Snow Forecast for Portillo, 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 Portillo, 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.

Portillo Snow Forecast updated at 18:43 BST, next update expected imminently.

Ensemble forecast for Portillo, Chile at 2,560m

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 Forecast near Portillo

Snow Forecasts for Ski Resorts near Portillo
Ski Area	48 Hr	7 Day	Fr	Sa	Su	Mo	Tu	We	Th
Los Penitentes	11cm 4in	69cm 27in
Catedral Alta Patagonia	18cm 7in	33cm 13in

Snow Reliability

Portillo boasts excellent snow reliability, with an average snow depth of 2-3 meters during the peak season. The resort typically experiences consistent snowfall, making it a reliable choice for winter sports; check J2Ski for the latest snow information.

Off-Piste Safety in Portillo

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