South American Ski Area Extends Season After Huge Snowfalls
Chile’s Portillo ski area has announced it is extending its 2026 season by several week into mid-October after massive snowfalls over the past month.
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Cerro Castor at 966 m altitude
Issued by Snow-Forecast.com at: 8 pm (local time) / 19 Aug 2026
Now
Next 4 days weather summary:A moderate fall of snow, heaviest on Wed night. Temperatures will be below freezing (max -2°C on Sat afternoon, min -7°C on Wed night). Winds decreasing (gales from the SW on Wed night, calm by Sat afternoon). | Days 5-7 weather summary:Mostly dry. Temperatures will be below freezing (max -1°C on Sun morning, min -3°C on Sat night). Wind will be generally light. | |||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | | |  |  |  |  | |  | | | | |
mod. snow | light snow | light snow | light snow | light snow | light snow | light snow | snow shwrs | some clouds | some clouds | clear | clear | clear | some clouds | some clouds | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | 5 | — | 2 | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
max °C | -6 | -4 | -3 | -3 | -3 | -3 | -4 | -3 | -2 | -2 | -1 | -1 | -1 | -2 | -2 | -2 |
min °C | -7 | -6 | -4 | -5 | -4 | -3 | -4 | -4 | -2 | -3 | -2 | -1 | -2 | -3 | -2 | -2 |
chill °C | -19 | -17 | -15 | -16 | -14 | -13 | -14 | -11 | -5 | -3 | -2 | -3 | -6 | -8 | -7 | -7 |
Humid % | 88 | 90 | 95 | 93 | 94 | 98 | 97 | 96 | 79 | 66 | 62 | 59 | 66 | 81 | 83 | 93 |
Freeze m | 50 | 150 | 450 | 300 | 400 | 550 | 350 | 250 | 550 | 400 | 0 | 800 | 600 | 450 | 700 | 600 |
 | — | 8:41 | — | — | 8:38 | — | — | 8:37 | — | — | 8:34 | — | — | 8:32 | — | — |
 | — | — | 6:29 | — | — | 6:30 | — | — | 6:32 | — | — | 6:35 | — | — | 6:36 | — |
Days 7-16 weather summary:
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Avalanche information: Centro de Información de Avalanchas CIAV
Popular Cerro Castor Pages
Snow Radar
Latest snow reports near Cerro Castor:
Cerro Castor Snow Conditions
| Top snow depth: | 50 cm |
|---|---|
| Bottom snow depth: | 25 cm |
| Fresh snowfall depth: | 4 cm |
| Last snowfall: | 18 Aug 2026 |
| Snow Alerts | Create Alert |
Other resorts in Argentina are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of August has on average:
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.6 | Powder days Fresh snow, limited sun, any wind. |
1.6 | Bluebird days Average snow, mostly sunny, light wind. |
Cerro Castor Forecast Snowfall
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Photos of Cerro Castor
La Brecha, a las 10:00 am by Marcos TDF
lonquimay volcano, Chile by dunclogie
Cerro Castor by Jorge E Lopez
Upload new photo Other resorts in Argentina are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Cerro Castor at the specific elevation of 966 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Cerro Castor. To access the weather forecasts for the other elevations, use the tab navigation above the table. For a wider view of the weather, check out the Weather Map of Argentina.
Click here to read further information on freezing levels and how we forecast our temperatures.
Visitor Reviews of Cerro Castor
Overall 3.9 Based on 37 votes and 22 reviews
- Snowsure
- Variety of pistes
- Vote
- franco from Argentina writes:
Cerro Castor se presenta nieve segura incluso en las temporadas más pobres. Poca cantidad de gente. Prolongada temporada con nieve primavera hasta fines de septiembre donde se disfruta buena temperatura y sol.
Visitor Reviews of Cerro Castor
franco from Argentina writes:
Cerro Castor se presenta nieve segura incluso en las temporadas más pobres. Poca cantidad de gente. Prolongada temporada con nieve primavera hasta fines de septiembre donde se disfruta buena temperatura y sol.
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