Portillo 7-Day Snow Forecast

Portillo Long-Range Snow Forecast Updated today

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Updated 03 August 2026 23:48 NZST

Long-Range Snow Forecast for Portillo

Long-range (14 to 45 days) from 3 August.

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	3 August
Next Snow Amount	4cm
Next 48 Hours	6cm
Next 7 Days	29cm

Long-range Snow Outlook for Portillo

Snowfall

Snow Line

Max 6℃
Min -15℃

31cm New Snow

Snow Line from 3,229m to resort level (2,560m).

Powder Alert!

Powder Alarm issued 03 August 2026 22:48 NZST

Powder Possible :- 19cm of Fresh Snow is forecast for Portillo over the next 3 days.

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
Mon 03	up to 8cm New Snow Light snow at altitude, light rain below. Snow Line from 3,229m to 2,699m, with rain below.	Max 5℃ Min 1℃
Tue 04	Cloudy.	Max 6℃ Min 1℃
Wed 05	1cm to 3cm New Snow Light snow showers. Snow Line from 2,999m to resort level (2,560m).	Max 5℃ Min -1℃
Thu 06	15cm to 16cm New Snow Light snow showers. Snow falling to resort level (2,560m).	Max 1℃ Min -11℃
Fri 07	Clear spells.	Max -2℃ Min -13℃
Sat 08	2cm New Snow Light snow at altitude, light rain showers below. Snow falling to resort level (2,560m).	Max -4℃ Min -11℃
Sun 09	4cm to 5cm New Snow Light snow at altitude, light rain showers below. Snow falling to resort level (2,560m).	Max -6℃ Min -15℃

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 23:48 NZST, next update expected 02:00 NZST.

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.

Snow Forecast near Portillo

Snow Forecasts for Ski Resorts near Portillo
Ski Area	48 Hr	7 Day	Mo	Tu	We	Th	Fr	Sa	Su
Catedral Alta Patagonia	20cm	41cm
Los Penitentes	6cm	17cm

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.