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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Heavens Sonohara Snow World at 1600 m altitude
Issued by Snow-Forecast.com at: 2 pm (local time) / 20 Aug 2026
Now
Next 3 days weather summary:Heavy rain (total 35.0mm), heaviest during Thu afternoon. Warm (max 21°C on Sat afternoon, min 17°C on Thu night). Wind will be generally light. | Days 4-6 weather summary:Heavy rain (total 45.0mm), heaviest during Wed morning. Warm (max 21°C on Tue morning, min 16°C on Wed morning). Wind will be generally light. | ||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  | | |  | | | | | |  | | | |
t-storm risk | rain shwrs | t-storm risk | t-storm risk | rain shwrs | some clouds | t-storm risk | rain shwrs | rain shwrs | t-storm risk | rain shwrs | rain shwrs | t-storm risk | rain shwrs | clear | t-storm risk | rain shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 13 | 4 | 2 | 3 | 1 | — | 3 | 8 | 1 | 5 | 4 | 1 | 4 | 1 | — | 6 | 6 |
max °C | 18 | 18 | 19 | 20 | 18 | 20 | 21 | 19 | 20 | 20 | 18 | 19 | 20 | 19 | 21 | 20 | 18 |
min °C | 18 | 17 | 17 | 18 | 17 | 18 | 20 | 17 | 18 | 19 | 17 | 17 | 19 | 17 | 18 | 19 | 17 |
chill °C | 18 | 17 | 17 | 18 | 17 | 18 | 20 | 17 | 18 | 19 | 17 | 17 | 19 | 17 | 18 | 19 | 17 |
Humid % | 90 | 97 | 95 | 78 | 90 | 81 | 70 | 81 | 85 | 76 | 93 | 95 | 81 | 95 | 81 | 81 | 88 |
Freeze m | 4900 | 5000 | 5000 | 5000 | 5050 | 5050 | 5050 | 5000 | 5100 | 5000 | 5100 | 5100 | 5150 | 5150 | 5100 | 5200 | 5050 |
 | — | — | 5:11 | — | — | 5:13 | — | — | 5:13 | — | — | 5:13 | — | — | 5:15 | — | — |
 | 6:32 | — | — | 6:31 | — | — | 6:30 | — | — | 6:29 | — | — | 6:28 | — | — | 6:25 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
Popular Heavens Sonohara Snow World Pages
Snow Radar
Latest snow reports near Heavens Sonohara Snow World:
Heavens Sonohara Snow World Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 26 Mar 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
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Snow History
Week 3 of August has on average:
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | Bluebird days Average snow, mostly sunny, light wind. |
Heavens Sonohara Snow World Forecast Snowfall
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Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Heavens Sonohara Snow World at the specific elevation of 1600 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Heavens Sonohara Snow World. 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 Japan.
Click here to read further information on freezing levels and how we forecast our temperatures.
Visitor Reviews of Heavens Sonohara Snow World
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