Fresh Snowfall In the Alps
Ski areas in the Alps are celebrating the first significant fresh snowfall of September, with accumulations of up to 20cm (8") reported.
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Osa at 865 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 12 Sep 2026
Next 3 days weather summary:Heavy rain (total 75.0mm), heaviest during Mon night. Warm (max 22°C on Sat morning, min 18°C on Mon night). Wind will be generally light. | Days 4-6 weather summary:Heavy rain (total 21.0mm), heaviest during Tue afternoon. Warm (max 21°C on Thu morning, min 18°C on Tue morning). Wind will be generally light. | |||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  |  | |  |  | | | | | | | |  | |
rain shwrs | t-storm risk | some clouds | t-storm risk | t-storm risk | rain shwrs | mod. rain | t-storm risk | heavy rain | light rain | t-storm risk | rain shwrs | t-storm risk | t-storm risk | some clouds | rain shwrs | t-storm risk | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | 3 | — | 4 | 8 | 7 | 7 | 16 | 29 | 3 | 5 | 4 | 3 | 3 | — | 1 | 2 | — |
max °C | 22 | 22 | 20 | 22 | 22 | 21 | 20 | 20 | 18 | 20 | 19 | 19 | 20 | 20 | 19 | 21 | 20 | 19 |
min °C | 20 | 21 | 20 | 21 | 22 | 20 | 20 | 19 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 19 |
chill °C | 20 | 21 | 20 | 21 | 22 | 20 | 20 | 19 | 18 | 18 | 19 | 18 | 19 | 19 | 18 | 20 | 20 | 19 |
Humid % | 89 | 89 | 93 | 92 | 89 | 92 | 94 | 98 | 96 | 93 | 89 | 90 | 83 | 85 | 92 | 84 | 88 | 88 |
Freeze m | 4900 | 5050 | 4950 | 4850 | 4900 | 4800 | 4700 | 4750 | 4500 | 4400 | 4450 | 4400 | 4400 | 4450 | 4500 | 4500 | 4600 | 4650 |
 | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — |
 | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:19 | — | — | 6:16 | — | — | 6:15 | — |
Days 7-16 weather summary:
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Avalanche information: Japan Avalanche Network
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Latest snow reports near Osa:
Osa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
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Snow History
Week 2 of September 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. |
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Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
The above table gives the weather forecast for Osa at the specific elevation of 865 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Osa. 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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