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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 3.0mm) at first, then becoming colder with a dusting of snow on Tue morning. Freeze-thaw conditions (max 2°C on Mon night, min -9°C on Sun morning). Winds decreasing (gales from the WNW on Sun morning, moderate winds from the WSW by Mon morning).
Osa Weather (Days 4-6): Light rain (total 2.0mm), mostly falling on Thu afternoon. Freeze-thaw conditions (max 6°C on Thu morning, min -3°C on Wed morning). Winds decreasing (strong winds from the WSW on Thu afternoon, light winds from the WNW by Fri night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -9 |  | ||||
| Bottom Lift: | -5 | |
Latest snow reports near Osa:
Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | Friday 16 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  |  |  | |  | |  |  | | | |  |  | | |  | |
light snow | light snow | light snow | some clouds | cloudy | light snow | snow shwrs | some clouds | some clouds | clear | clear | some clouds | cloudy | light rain | rain shwrs | clear | some clouds | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
1 | 1 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 3 | — | — | — | — | — | — | — | 1 | 1 | — | — | — | |
max °C | -8 | -8 | -8 | -3 | -1 | 2 | 1 | -1 | -4 | -3 | -1 | 1 | 6 | 6 | 5 | 4 | 4 | 4 |
min °C | -9 | -9 | -9 | -6 | -2 | 0 | 0 | -2 | -6 | -3 | -2 | 0 | 2 | 5 | 2 | 3 | 4 | 4 |
-22 | -21 | -21 | -14 | -10 | -8 | -8 | -11 | -16 | -11 | -9 | -5 | -5 | -1 | -5 | -2 | 0 | 1 | |
72 | 67 | 90 | 76 | 92 | 94 | 91 | 81 | 89 | 55 | 66 | 39 | 80 | 91 | 87 | 39 | 31 | 23 | |
0 | 0 | 0 | 250 | 800 | 1200 | 1100 | 900 | 300 | 550 | 800 | 1150 | 1500 | 1900 | 1500 | 1650 | 1700 | 2050 | |
 | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — |
 | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — | — | 5:21 | — | — | 5:22 | — | — | 5:22 | — |
Light rain (total 3.0mm) at first, then becoming colder with a dusting of snow on Tue morning. Freeze-thaw conditions (max 2°C on Mon night, min -9°C on Sun morning). Winds decreasing (gales from the WNW on Sun morning, moderate winds from the WSW by Mon morning).
Light rain (total 2.0mm), mostly falling on Thu afternoon. Freeze-thaw conditions (max 6°C on Thu morning, min -3°C on Wed morning). Winds decreasing (strong winds from the WSW on Thu afternoon, light winds from the WNW by Fri night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 3 cm |
| Last snowfall: | 10 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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