Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 23.0mm), heaviest during Fri afternoon. Freeze-thaw conditions (max 7°C on Thu afternoon, min -1°C on Tue night). Winds decreasing (fresh winds from the N on Tue night, calm by Thu afternoon).
Osa Weather (Days 4-6): A light covering of new snow, mostly falling on Mon afternoon. Freeze-thaw conditions (max 3°C on Sun afternoon, min -2°C on Fri night). Winds increasing (calm on Sun morning, fresh winds from the NW by Mon afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | 2 | |
Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  |  | |  |  |  | | | | |  | | | |
light snow | light snow | snow shwrs | clear | clear | clear | cloudy | mod. rain | heavy rain | light snow | light snow | light snow | light snow | some clouds | some clouds | cloudy | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
— | — | — | — | — | — | — | 10 | 13 | — | — | — | — | — | — | — | |
max °C | 1 | 0 | 0 | 0 | 5 | 7 | 5 | 6 | 5 | 2 | -1 | 0 | -1 | 2 | 3 | 1 |
min °C | -1 | -1 | -1 | -1 | 3 | 6 | 5 | 4 | 4 | -2 | -2 | -1 | -2 | -1 | 2 | 0 |
-7 | -7 | -6 | -6 | 0 | 5 | 4 | -1 | -1 | -10 | -9 | -6 | -7 | -1 | -1 | -3 | |
96 | 96 | 92 | 71 | 43 | 39 | 52 | 82 | 97 | 88 | 88 | 85 | 92 | 73 | 60 | 42 | |
950 | 750 | 800 | 750 | 1750 | 2000 | 2100 | 2150 | 1600 | 900 | 650 | 800 | 650 | 800 | 1250 | 1100 | |
 | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — |
 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — |
Heavy rain (total 23.0mm), heaviest during Fri afternoon. Freeze-thaw conditions (max 7°C on Thu afternoon, min -1°C on Tue night). Winds decreasing (fresh winds from the N on Tue night, calm by Thu afternoon).
A light covering of new snow, mostly falling on Mon afternoon. Freeze-thaw conditions (max 3°C on Sun afternoon, min -2°C on Fri night). Winds increasing (calm on Sun morning, fresh winds from the NW by Mon afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.2 | Powder days Fresh snow, limited sun, any wind. |
0.5 | 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.
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