Sign In with AppleBy using Snow-Forecast, you agree to our Terms & Services.
Don't have an account? Join now
Osa Weather (Next 3 days): The snow forecast for Osa is: Mild with light rain (total 9.0mm) on Sat night Becoming colder with a light covering of snow, mostly falling on Sat night. Freeze-thaw conditions (max 6°C on Sat morning, min -1°C on Sun night). Winds increasing (light winds from the SSW on Sat morning, near gales from the WNW by Sun morning).
Osa Weather (Days 4-6): Light rain (total 6.0mm), mostly falling on Wed afternoon. Mild temperatures (max 5°C on Tue afternoon, min 3°C on Tue night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | -1 | |
Latest snow reports near Osa:
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | | | |  | | |  |  |  | | | | | | |
clear | light rain | light snow | light snow | light snow | light snow | light snow | some clouds | clear | some clouds | rain shwrs | light rain | cloudy | light rain | light rain | some clouds | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | 3 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | 3 | 6 | — | — | — | — | — | — | — | 1 | 1 | — | 3 | 1 | — | — | — | |
max °C | 6 | 4 | 6 | 0 | 0 | 0 | 1 | 1 | 1 | 4 | 5 | 4 | 5 | 4 | 4 | 4 | 5 | 4 |
min °C | 3 | 4 | 1 | 0 | 0 | -1 | 0 | 0 | 1 | 4 | 4 | 3 | 4 | 3 | 3 | 3 | 4 | 4 |
0 | 1 | -6 | -8 | -7 | -9 | -6 | -5 | -3 | -1 | -1 | -1 | 2 | 0 | 0 | 1 | 3 | 2 | |
43 | 83 | 95 | 86 | 91 | 81 | 84 | 82 | 64 | 88 | 85 | 92 | 74 | 92 | 95 | 86 | 70 | 50 | |
1800 | 1900 | 2250 | 800 | 850 | 800 | 850 | 1000 | 1150 | 1300 | 1400 | 1400 | 1500 | 1350 | 1350 | 1350 | 1450 | 2250 | |
 | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:01 | — |
Mild with light rain (total 9.0mm) on Sat night Becoming colder with a light covering of snow, mostly falling on Sat night. Freeze-thaw conditions (max 6°C on Sat morning, min -1°C on Sun night). Winds increasing (light winds from the SSW on Sat morning, near gales from the WNW by Sun morning).
Light rain (total 6.0mm), mostly falling on Wed afternoon. Mild temperatures (max 5°C on Tue afternoon, min 3°C on Tue night). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
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. |
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.
Snow Report
Webcams
Ski Resort Guide
Snow History
Snow Alerts
Snow
Sign up or Login to access
Nearest