Osa Weather (Next 3 days): The snow forecast for Osa is: Moderate rain (total 10.0mm) heaviest on Fri afternoon, then becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 6°C on Thu afternoon, min -4°C on Sat afternoon). Winds increasing (calm on Thu afternoon, strong winds from the WNW by Fri night).
Osa Weather (Days 4-6): A light covering of new snow, mostly falling on Mon afternoon. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Mon night). Winds increasing (light winds from the WNW on Sun morning, fresh winds from the NNW by Mon night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -2 |  | ||||
| Bottom Lift: | 1 | |
Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  |  |  |  |  |  | | | |  | | | | |
snow shwrs | some clouds | clear | cloudy | light rain | mod. rain | light snow | light snow | snow shwrs | light snow | clear | some clouds | some clouds | light snow | light snow | snow shwrs | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | 2 | — | — | 2 | — | — | — | — | 2 | 2 | |
— | — | — | — | 1 | 9 | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | 3 | 6 | 5 | 6 | 4 | 1 | -3 | -2 | -3 | -1 | 0 | -1 | 0 | -1 | -3 |
min °C | -2 | 2 | 6 | 4 | 5 | 3 | -3 | -3 | -4 | -4 | -3 | 0 | -2 | -1 | -2 | -5 |
-8 | -2 | 6 | -1 | 0 | -3 | -12 | -11 | -12 | -10 | -7 | -2 | -6 | -6 | -9 | -12 | |
63 | 34 | 41 | 41 | 76 | 99 | 97 | 91 | 81 | 92 | 69 | 56 | 39 | 87 | 92 | 96 | |
750 | 1650 | 2000 | 2200 | 2100 | 1800 | 950 | 650 | 750 | 500 | 700 | 1050 | 650 | 950 | 900 | 500 | |
 | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — |
 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — |
Moderate rain (total 10.0mm) heaviest on Fri afternoon, then becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 6°C on Thu afternoon, min -4°C on Sat afternoon). Winds increasing (calm on Thu afternoon, strong winds from the WNW by Fri night).
A light covering of new snow, mostly falling on Mon afternoon. Temperatures will be below freezing (max 0°C on Sun afternoon, min -5°C on Mon night). Winds increasing (light winds from the WNW on Sun morning, fresh winds from the NNW by Mon night).
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. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.7 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 1030 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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