Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 22.0mm), heaviest during Sun night. Mild temperatures (max 8°C on Sun afternoon, min 1°C on Mon night). Winds increasing (calm on Sat afternoon, fresh winds from the N by Mon night).
Osa Weather (Days 4-6): Light rain (total 4.0mm), mostly falling on Wed morning. Mild temperatures (max 8°C on Thu afternoon, min 3°C on Wed morning). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 1 |  | ||||
| Bottom Lift: | 1 | |
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  |  |  |  | | | | |  | | | | | | | |
clear | clear | some clouds | cloudy | light rain | heavy rain | rain shwrs | clear | some clouds | clear | cloudy | cloudy | light rain | rain shwrs | clear | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | 2 | 18 | 2 | — | — | — | — | — | 3 | 1 | — | — | — | — | |
max °C | 6 | 6 | 4 | 7 | 8 | 6 | 6 | 4 | 2 | 6 | 7 | 6 | 3 | 4 | 4 | 7 | 8 | 8 |
min °C | 3 | 5 | 4 | 6 | 7 | 5 | 5 | 2 | 1 | 5 | 6 | 5 | 3 | 4 | 4 | 6 | 8 | 7 |
3 | 5 | 2 | 3 | 4 | 2 | 0 | -4 | -5 | 1 | 6 | 3 | 3 | 2 | 1 | 3 | 6 | 4 | |
35 | 51 | 44 | 73 | 81 | 98 | 89 | 66 | 50 | 19 | 48 | 51 | 78 | 89 | 65 | 36 | 44 | 21 | |
1450 | 1850 | 2000 | 2000 | 2100 | 1900 | 1950 | 1500 | 1300 | 2250 | 2250 | 2350 | 1500 | 1500 | 1900 | 2000 | 2300 | 2750 | |
 | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:07 | — | — | 6:07 | — | — |
 | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — | — | 6:25 | — | — | 6:25 | — |
Heavy rain (total 22.0mm), heaviest during Sun night. Mild temperatures (max 8°C on Sun afternoon, min 1°C on Mon night). Winds increasing (calm on Sat afternoon, fresh winds from the N by Mon night).
Light rain (total 4.0mm), mostly falling on Wed morning. Mild temperatures (max 8°C on Thu afternoon, min 3°C on Wed morning). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | 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 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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