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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Manza Onsen at 1820 m altitude
Issued by Snow-Forecast.com at: 2 am (local time) / 20 Aug 2026
Now
Next 3 days weather summary:Heavy rain (total 51.0mm), heaviest during Thu afternoon. Very mild (max 18°C on Thu morning, min 15°C on Fri night). Wind will be generally light. | Days 4-6 weather summary:Heavy rain (total 37.0mm), heaviest during Sun afternoon. Warm (max 20°C on Mon morning, min 16°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | | | | | |  | | | | | | |
t-storm risk | t-storm risk | rain shwrs | t-storm risk | t-storm risk | rain shwrs | t-storm risk | t-storm risk | rain shwrs | t-storm risk | t-storm risk | rain shwrs | rain shwrs | t-storm risk | rain shwrs | t-storm risk | t-storm risk | rain shwrs | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 5 | 9 | 5 | 3 | 4 | 8 | 4 | 7 | 6 | 4 | 6 | 1 | 1 | 4 | 4 | 3 | 7 | 7 |
max °C | 18 | 18 | 17 | 17 | 17 | 16 | 17 | 17 | 16 | 17 | 17 | 16 | 20 | 19 | 17 | 19 | 19 | 17 |
min °C | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 16 | 16 | 16 | 17 | 18 | 17 | 18 | 18 | 17 |
chill °C | 17 | 17 | 16 | 16 | 16 | 15 | 16 | 16 | 15 | 16 | 16 | 16 | 17 | 18 | 17 | 18 | 18 | 17 |
Humid % | 85 | 81 | 83 | 86 | 90 | 92 | 87 | 88 | 91 | 88 | 88 | 89 | 78 | 72 | 78 | 76 | 78 | 83 |
Freeze m | 4850 | 4950 | 4950 | 4850 | 5000 | 4950 | 4750 | 4850 | 4750 | 4750 | 4900 | 5050 | 5100 | 5050 | 5100 | 5050 | 5000 | 5050 |
 | 5:05 | — | — | 5:07 | — | — | 5:07 | — | — | 5:09 | — | — | 5:09 | — | — | 5:09 | — | — |
 | — | 6:30 | — | — | 6:30 | — | — | 6:29 | — | — | 6:27 | — | — | 6:25 | — | — | 6:24 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
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Latest snow reports near Manza Onsen:
Manza Onsen Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 9 May 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Gunma 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. |
Manza Onsen Forecast Snowfall
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Other resorts in Japan - Gunma are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Manza Onsen at the specific elevation of 1820 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Manza Onsen. 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.
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