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60,000+ Ready For Biathlon World Cup’s Sole French Leg
One of the biggest winter sport spectator events on skis returns to the French Alps next week with the Biathlon World Cup taking place from December 15-21 in Le Grand-Bornand.
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Osa at 865 m altitude
Issued by Snow-Forecast.com at: 8 am (local time) / 12 Dec 2025
Now
Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | | |  | |  | | |  |  | | | | |
light snow | clear | some clouds | clear | light rain | heavy rain | light snow | light snow | light snow | light snow | some clouds | some clouds | some clouds | cloudy | light rain | light rain | light rain | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | 2 | — | 1 | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 1 | 20 | — | — | — | — | — | — | — | — | 4 | 4 | 4 | — | |
max °C | -1 | -1 | 0 | 5 | 5 | 6 | 0 | 0 | 0 | 1 | 1 | 3 | 5 | 5 | 6 | 5 | 5 | 5 |
min °C | -1 | -2 | -1 | 2 | 4 | 3 | 0 | 0 | -1 | 0 | 0 | 0 | 4 | 4 | 5 | 5 | 5 | 3 |
-7 | -8 | -5 | -1 | -1 | -4 | -8 | -8 | -9 | -7 | -5 | -5 | -1 | -1 | 1 | 3 | 5 | 3 | |
96 | 71 | 51 | 52 | 70 | 99 | 89 | 82 | 86 | 84 | 81 | 87 | 87 | 88 | 93 | 98 | 98 | 97 | |
700 | 750 | 700 | 1600 | 1650 | 2000 | 850 | 850 | 800 | 850 | 1000 | 950 | 1350 | 1600 | 1600 | 1750 | 1700 | 1550 | |
 | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Next 0-3 days weather summary:
Heavy rain (total 21.0mm), heaviest during Sat night. Later becoming colder with a dusting of snow on Sun morning. Freeze-thaw conditions (max 6°C on Sat night, min -2°C on Fri afternoon). Winds increasing (light winds from the SSE on Fri night, strong winds from the WNW by Sun morning).
Next 4-6 days weather summary:
Moderate rain (total 12.0mm), heaviest on Wed afternoon. Freeze-thaw conditions (max 6°C on Tue night, min 0°C on Mon morning). Winds decreasing (fresh winds from the WNW on Mon morning, calm by Wed afternoon).
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Snow Radar
Latest snow reports near Osa:
Osa Snow Conditions
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
Other resorts in Japan - Hiroshima are reporting: powder (0) / good piste (0)
Snow History
Week 2 of December has on average:
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.6 | Powder days Fresh snow, limited sun, any wind. |
0.4 | 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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