This South America snow forecast favors southern Chile and Patagonia through Friday, with Cerro Castor carrying the strongest published total at 15-22 cm. The near-term pattern is active but not especially deep, with a current southern Chile pulse, colder far-south snow early to midweek, and a more uncertain central Andes wave next weekend. Lift-served access is still limited and uneven across the region, so the most practical takeaway is where new snow is refreshing open terrain versus where it is mainly helping early-season coverage.
For Saturday into early Sunday, the individual models converge on the best snow around the southern Chile volcanoes, with snow levels mostly 700-1,300 meters and SLRs near 10-13. That points to moderate-density snow rather than blower powder, with winds generally 10-25 km/h and occasional stronger gusts near exposed terrain. Corralco is the favored spot in this first pulse where operations allow, while Nevados de Chillán looks lighter and remains more of a setup piece with its ski access not clearly open yet.
From Sunday through Friday, the models continue snow chances in Patagonia and the far south, but they diverge on how much reaches the Bariloche and San Martín zones versus Cerro Castor. Snow levels sit low, often near valley floors to 900 meters, and SLRs mostly run from 7-15, so snow quality should range from dense at warmer fringe hours to fair or light during colder bursts. Wind is the bigger ski-weather flag in the far south, with several solutions showing exposed ridges becoming strong at times even while the snowfall remains intermittent.
By Wednesday and Thursday, the northern and central Andes signal is weak before Friday, and the Saturday, July 4 into Sunday, July 5 central Andes wave has only speculative local upside near 10-15 cm. The models diverge sharply on next weekend’s timing and intensity: one wetter solution brings a more useful refresh near the high Chilean resorts, while several keep it minor and displaced. Snow levels look low enough for snow at resort elevations if that wave verifies, with moderate-to-light snow quality possible, but the realistic expectation remains conservative until agreement improves.
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South America Snow Forecast Resort Totals (Sat Jun 27 – Fri Jul 03)
- Cerro Castor – 15-22 cm
- Corralco – 11-14 cm
- Chapelco – 6-10 cm
- Cerro Catedral – 4-6 cm
- Las Leñas – 3-6 cm
- Nevados de Chillán – 3 cm
- El Colorado – 0 cm
- La Parva – 0 cm
- Portillo – 0 cm
- Valle Nevado – 0 cm