Next 3 days weather summary:Moderate rain (total 14.0mm), heaviest on Thu morning. Very mild (max 15°C on Sat afternoon, min 8°C on Thu night). Winds decreasing (fresh winds from the NE on Thu night, light winds from the S by Sat night). | Days 4-6 weather summary:Light rain (total 6.0mm), mostly falling on Sun afternoon. Very mild (max 16°C on Tue morning, min 10°C on Sun night). Wind will be generally light. | |||||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | |  | | |  | | | | | | | |
mod. rain | light rain | cloudy | cloudy | some clouds | clear | clear | clear | some clouds | light rain | light rain | rain shwrs | cloudy | clear | some clouds | some clouds | clear | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
9 | 5 | — | — | — | — | — | — | — | 1 | 3 | 2 | — | — | — | — | — | — | |
max °C | 10 | 9 | 9 | 11 | 12 | 10 | 14 | 15 | 11 | 12 | 12 | 11 | 14 | 15 | 12 | 16 | 14 | 11 |
min °C | 9 | 9 | 8 | 10 | 11 | 9 | 13 | 13 | 10 | 12 | 12 | 10 | 11 | 14 | 11 | 14 | 13 | 10 |
5 | 6 | 4 | 7 | 8 | 6 | 11 | 12 | 8 | 12 | 12 | 8 | 9 | 14 | 9 | 12 | 11 | 7 | |
92 | 98 | 57 | 30 | 44 | 34 | 26 | 50 | 76 | 72 | 85 | 81 | 67 | 45 | 38 | 69 | 63 | 48 | |
3300 | 3200 | 3200 | 2900 | 2800 | 2750 | 2850 | 2900 | 2950 | 2950 | 2850 | 3050 | 2750 | 2800 | 3050 | 2950 | 2950 | 2950 | |
 | 5:30 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:24 | — | — | 5:24 | — | — |
 | — | 6:49 | — | — | 6:49 | — | — | 6:50 | — | — | 6:51 | — | — | 6:52 | — | — | 6:52 | — |
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | 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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