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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 6.0mm), mostly falling on Mon night. Freeze-thaw conditions (max 4°C on Thu morning, min -7°C on Tue night). Winds decreasing (gales from the W on Tue morning, moderate winds from the W by Wed night).
Osa Weather (Days 4-6): Light rain (total 3.0mm), mostly falling on Thu afternoon. Mild temperatures (max 5°C on Thu afternoon, min 1°C on Thu night). Winds decreasing (near gales from the WSW on Thu afternoon, light winds from the WNW by Sat night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -1 |  | ||||
| Bottom Lift: | 1 | |
Latest snow reports near Osa:
Mon 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | |  | |  |  | | | | | |  | |
some clouds | light snow | light snow | cloudy | snow shwrs | clear | clear | some clouds | cloudy | light rain | rain shwrs | clear | clear | some clouds | clear | clear | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | 3 | 3 | — | — | — | — | — | — | 1 | 2 | — | — | — | — | — | — | |
max °C | -2 | 2 | 2 | -2 | -4 | -3 | -2 | 0 | 4 | 5 | 4 | 4 | 4 | 4 | 5 | 4 | 4 |
min °C | -2 | -1 | 0 | -3 | -7 | -4 | -2 | -2 | 3 | 5 | 1 | 3 | 4 | 3 | 4 | 3 | 3 |
-10 | -9 | -9 | -12 | -18 | -13 | -10 | -8 | -3 | -1 | -6 | -3 | -1 | -2 | 0 | 0 | 1 | |
84 | 86 | 91 | 84 | 90 | 63 | 71 | 71 | 70 | 90 | 93 | 43 | 34 | 26 | 31 | 65 | 45 | |
800 | 1200 | 1300 | 850 | 200 | 500 | 750 | 750 | 1700 | 1800 | 1400 | 1500 | 1750 | 1950 | 1750 | 1500 | 1950 | |
 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — | — | 5:23 | — |
Light rain (total 6.0mm), mostly falling on Mon night. Freeze-thaw conditions (max 4°C on Thu morning, min -7°C on Tue night). Winds decreasing (gales from the W on Tue morning, moderate winds from the W by Wed night).
Light rain (total 3.0mm), mostly falling on Thu afternoon. Mild temperatures (max 5°C on Thu afternoon, min 1°C on Thu night). Winds decreasing (near gales from the WSW on Thu afternoon, light winds from the WNW by Sat night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 4 cm |
| Last snowfall: | 11 Jan 2026 |
| Snow Alerts | Create Alert |
0.5 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
1.6 | 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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