Next 4 days weather summary:Moderate rain (total 19.0mm), heaviest on Wed night. Very mild (max 14°C on Fri afternoon, min 8°C on Thu night). Winds increasing (calm on Wed night, fresh winds from the NE by Thu night). | Days 5-7 weather summary:Heavy rain (total 29.0mm), heaviest during Sun morning. Very mild (max 15°C on Mon afternoon, min 8°C on Sun night). Winds increasing (light winds from the WNW on Mon morning, fresh winds from the WSW by Tue afternoon). | |||||||||||||||
Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  | | | |  | |  | | |  | |
mod. rain | mod. rain | light rain | cloudy | some clouds | clear | clear | clear | some clouds | cloudy | heavy rain | heavy rain | light rain | clear | clear | some clouds | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
9 | 7 | 3 | — | — | — | — | — | — | — | 13 | 12 | 3 | — | — | — | |
max °C | 10 | 9 | 9 | 8 | 12 | 14 | 10 | 14 | 14 | 11 | 10 | 9 | 9 | 14 | 15 | 13 |
min °C | 9 | 9 | 9 | 8 | 10 | 12 | 10 | 13 | 13 | 10 | 9 | 9 | 8 | 12 | 14 | 11 |
7 | 6 | 6 | 4 | 7 | 10 | 7 | 11 | 12 | 8 | 6 | 6 | 5 | 11 | 13 | 8 | |
85 | 94 | 97 | 56 | 25 | 39 | 34 | 21 | 48 | 69 | 94 | 99 | 91 | 51 | 46 | 48 | |
3100 | 3200 | 3100 | 2850 | 2700 | 2750 | 2800 | 2900 | 2950 | 3000 | 2700 | 2650 | 2850 | 2750 | 2800 | 3000 | |
 | — | 5:30 | — | — | 5:28 | — | — | 5:28 | — | — | 5:26 | — | — | 5:24 | — | — |
 | — | — | 6:49 | — | — | 6:49 | — | — | 6:50 | — | — | 6:51 | — | — | 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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