Check Portillo snow forecast for your dates
Based on 10 years of historical snowfall data
About Portillo
Portillo snowfall statistics based on 10 years of historical data. See average annual snowfall, best months to ski, and powder probability to help you plan your trip.
Snow & Weather Conditions
We use 10 years of historical data to help you plan — not a live snow report.
The Chilean Andes receive substantial Pacific storm snowfall at extreme altitude. Dry, cold conditions produce light powder that rivals the best Northern Hemisphere snow. The high elevation ensures a cold, consistent climate that favours natural snow preservation. Storms frequently deliver generous totals, and the altitude keeps the snowpack dense and skiable throughout the core winter months. Season-long totals generally land between 6 and 10 metres, translating to a robust mid-winter base well above 2 metres.
Best Time to Ski
The Southern Hemisphere season runs from June to October. July and August are peak months for snowfall and conditions. July and August offer the strongest likelihood of fresh snow at Portillo, as cold-weather fronts peak in frequency while sustained cold locks in high-quality powder. September can also deliver excellent conditions — the snowpack is often at its deepest, and you may find fewer crowds on the mountain. Review PowderDays' long-range snowfall records to select travel dates backed by a decade of weather observations.
What Makes It Special
Above-treeline skiing on vast, open volcanic and Andean terrain. Steep chutes, couloirs, and incredible backcountry options abound. Chilean ski culture combines stunning Andean scenery, excellent South American cuisine, fine wines, and a warm, passionate ski community.
The Chilean and Argentine Andes are home to some of the highest ski resorts in the world, with base elevations above 2,500 metres and ridgelines exceeding 4,000 metres. The region's Southern Hemisphere season (June to October) makes it a prime destination for Northern Hemisphere skiers seeking summer powder.
Data Sources & Methodology
All snowfall statistics for Portillo are based on 10 years of historical data (2015-2025) from the Open-Meteo Historical Weather API, which provides ERA5 reanalysis data from the European Centre for Medium-Range Weather Forecasts (ECMWF). Daily snowfall totals are queried at Portillo's coordinates (-32.84, -70.13) and 3,310m elevation, then aggregated into monthly averages, record highs/lows, and powder probability scores. Powder probability represents the chance of receiving 15cm or more of fresh snow in any given week during that month.