Next 3 days weather summary:Mostly dry. Warm (max 26°C on Sun morning, min 22°C on Fri night). Wind will be generally light. | Days 4-6 weather summary:Moderate rain (total 14.0mm), heaviest on Tue morning. Warm (max 27°C on Mon morning, min 22°C on Mon night). Winds increasing (calm on Mon night, strong winds from the ESE by Wed night). | |||||||||||||||||
Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | | | | |  |  |  | | | | | | |
clear | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | clear | clear | rain shwrs | rain shwrs | t-storm risk | t-storm risk | rain shwrs | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 5 | 4 | 1 | — | — | — |
max °C | 25 | 25 | 24 | 25 | 24 | 24 | 26 | 26 | 24 | 27 | 27 | 23 | 24 | 24 | 23 | 25 | 27 | 24 |
min °C | 24 | 25 | 22 | 24 | 24 | 23 | 25 | 26 | 24 | 25 | 25 | 22 | 23 | 23 | 22 | 23 | 25 | 23 |
chill °C | 24 | 25 | 22 | 24 | 24 | 23 | 25 | 26 | 24 | 25 | 25 | 22 | 23 | 23 | 22 | 23 | 25 | 23 |
Humid % | 53 | 65 | 55 | 70 | 73 | 70 | 68 | 72 | 71 | 67 | 70 | 85 | 85 | 88 | 87 | 76 | 55 | 58 |
Freeze m | 5350 | 5450 | 5450 | 5500 | 5500 | 5600 | 5500 | 5550 | 5650 | 5600 | 5600 | 5650 | 5450 | 5600 | 5700 | 5500 | 5550 | 5700 |
 | 5:18 | — | — | 5:20 | — | — | 5:20 | — | — | 5:20 | — | — | 5:22 | — | — | 5:22 | — | — |
 | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:12 | — | — | 7:10 | — | — | 7:09 | — |
SnowProGo pro and carve into:
Avalanche information: Japan Avalanche Network
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 1030 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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