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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 3.0mm), mostly falling on Mon morning. Very mild (max 11°C on Sun afternoon, min 5°C on Sat morning). Winds increasing (calm on Sat morning, fresh winds from the WSW by Sun night).
Osa Weather (Days 4-6): Drizzle on Tue night turning to light snow on Wed afternoon. Freeze-thaw conditions (max 7°C on Tue morning, min -6°C on Wed afternoon). Winds increasing (light winds from the NW on Tue afternoon, near gales from the WNW by Wed afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 4 |  | ||||
| Bottom Lift: | 6 | |
Latest snow reports near Osa:
Saturday 29 | Sunday 30 | Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Friday 5 | |||||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  | | |  |  |  | |  |  |  |  | | | | | | | | | |
clear | clear | clear | clear | clear | some clouds | light rain | rain shwrs | clear | some clouds | cloudy | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | some clouds | |
km/h | |||||||||||||||||||||
Snow map |  |  |  |  |  |  |  | ||||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | 2 | 4 | 2 | — | — | 1 | — | — | — | |
— | — | — | — | — | — | 2 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | |
max °C | 7 | 8 | 7 | 10 | 11 | 9 | 9 | 9 | 8 | 7 | 5 | 3 | -2 | -4 | -4 | -2 | -1 | 1 | -1 | -1 | 0 |
min °C | 5 | 7 | 7 | 9 | 8 | 8 | 9 | 8 | 6 | 7 | 4 | -3 | -4 | -6 | -5 | -3 | -1 | 0 | -1 | -1 | -2 |
4 | 4 | 4 | 6 | 5 | 5 | 6 | 6 | 2 | 4 | 1 | -11 | -13 | -17 | -15 | -11 | -8 | -7 | -9 | -9 | -7 | |
42 | 42 | 46 | 62 | 66 | 84 | 93 | 88 | 49 | 61 | 90 | 89 | 93 | 91 | 88 | 87 | 83 | 90 | 83 | 79 | 89 | |
2350 | 2550 | 2950 | 2900 | 2750 | 2800 | 2450 | 2450 | 2700 | 2300 | 1500 | 850 | 400 | 400 | 250 | 550 | 750 | 1050 | 750 | 750 | 450 | |
 | 6:56 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 4:59 | — | — | 4:59 | — | — | 4:59 | — |
Light rain (total 3.0mm), mostly falling on Mon morning. Very mild (max 11°C on Sun afternoon, min 5°C on Sat morning). Winds increasing (calm on Sat morning, fresh winds from the WSW by Sun night).
Drizzle on Tue night turning to light snow on Wed afternoon. Freeze-thaw conditions (max 7°C on Tue morning, min -6°C on Wed afternoon). Winds increasing (light winds from the NW on Tue afternoon, near gales from the WNW by Wed afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Nov 2025 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.1 | 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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