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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 3.0mm), mostly falling on Tue afternoon. Freeze-thaw conditions (max 5°C on Wed morning, min -1°C on Sun afternoon). Winds decreasing (strong winds from the WNW on Sun afternoon, light winds from the W by Mon night).
Osa Weather (Days 4-6): Light rain (total 7.0mm), mostly falling on Wed afternoon. Very mild (max 10°C on Sat morning, min 3°C on Wed night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -2 |  | ||||
| Bottom Lift: | 1 | |
Latest snow reports near Osa:
Sun 14 | Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | ||||||||||||
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 | some clouds | some clouds | rain shwrs | light rain | light rain | light rain | rain shwrs | clear | clear | clear | clear | clear | clear | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | 1 | 1 | 1 | 5 | 2 | — | — | — | — | — | — | |
max °C | 0 | 0 | 1 | 1 | 2 | 4 | 4 | 3 | 5 | 5 | 4 | 6 | 7 | 6 | 9 | 9 | 7 |
min °C | -1 | -1 | 0 | 0 | 1 | 3 | 3 | 3 | 5 | 4 | 3 | 4 | 6 | 6 | 7 | 7 | 6 |
-9 | -8 | -6 | -4 | -2 | -2 | -1 | -1 | 1 | 4 | 1 | 4 | 6 | 5 | 5 | 5 | 3 | |
91 | 82 | 83 | 80 | 51 | 86 | 89 | 93 | 89 | 99 | 95 | 72 | 73 | 57 | 49 | 66 | 80 | |
800 | 800 | 850 | 1000 | 1450 | 1300 | 1350 | 1400 | 1550 | 1600 | 1400 | 1500 | 1850 | 2500 | 2650 | 2700 | 3100 | |
 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — |
 | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — |
Light rain (total 3.0mm), mostly falling on Tue afternoon. Freeze-thaw conditions (max 5°C on Wed morning, min -1°C on Sun afternoon). Winds decreasing (strong winds from the WNW on Sun afternoon, light winds from the W by Mon night).
Light rain (total 7.0mm), mostly falling on Wed afternoon. Very mild (max 10°C on Sat morning, min 3°C on Wed night). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 2 cm |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.6 | 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 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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