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Osa Weather (Next 3 days): The snow forecast for Osa is: Moderate rain (total 16.0mm), heaviest on Wed afternoon. Mild temperatures (max 7°C on Wed morning, min 2°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, calm by Thu night).
Osa Weather (Days 4-6): Moderate rain (total 13.0mm), heaviest on Sun morning. Very mild (max 12°C on Sat morning, min 2°C on Sun night). Mainly fresh winds.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | 0 |  |
Latest snow reports near Osa:
Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  |  | | | | | |  | | | | | | |
cloudy | light rain | light rain | light rain | mod. rain | rain shwrs | clear | clear | clear | clear | clear | some clouds | some clouds | cloudy | light rain | light rain | light rain | light rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | 1 | 4 | 1 | 7 | 3 | — | — | — | — | — | — | — | — | 2 | 5 | 3 | 3 | |
max °C | 5 | 4 | 5 | 7 | 6 | 4 | 5 | 6 | 6 | 10 | 9 | 8 | 12 | 12 | 11 | 10 | 8 | 7 |
min °C | 3 | 3 | 3 | 6 | 5 | 2 | 4 | 5 | 6 | 8 | 7 | 6 | 9 | 11 | 10 | 10 | 7 | 2 |
-2 | -1 | -2 | 2 | 1 | -2 | 1 | 5 | 6 | 6 | 3 | 1 | 8 | 9 | 8 | 8 | 5 | -3 | |
85 | 88 | 96 | 87 | 98 | 93 | 64 | 41 | 45 | 44 | 70 | 85 | 72 | 63 | 76 | 98 | 98 | 97 | |
1300 | 1400 | 1550 | 1750 | 1900 | 1300 | 1400 | 2050 | 2550 | 2700 | 2500 | 3000 | 2700 | 2800 | 2900 | 2900 | 2550 | 1550 | |
 | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:02 | — | — | 5:02 | — |
Moderate rain (total 16.0mm), heaviest on Wed afternoon. Mild temperatures (max 7°C on Wed morning, min 2°C on Wed night). Winds decreasing (fresh winds from the SW on Wed morning, calm by Thu night).
Moderate rain (total 13.0mm), heaviest on Sun morning. Very mild (max 12°C on Sat morning, min 2°C on Sun night). Mainly fresh winds.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.5 | Powder days Fresh snow, limited sun, any wind. |
0.5 | 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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