Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 30.0mm), heaviest during Thu night. Freeze-thaw conditions (max 15°C on Fri morning, min 0°C on Tue night). Winds increasing (calm on Wed morning, gales from the SSW by Thu night).
Osa Weather (Days 4-6): Moderate rain (total 12.0mm), heaviest on Mon morning. Very mild (max 16°C on Sun afternoon, min 6°C on Fri night). Winds increasing (light winds from the NNW on Sat night, near gales from the SSW by Mon morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | 1 | |
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  | | |  |  |  |  |  |  |  | | | | |  | |
clear | clear | clear | clear | cloudy | light rain | heavy rain | mod. rain | rain shwrs | some clouds | some clouds | some clouds | some clouds | clear | some clouds | light rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 5 | 17 | 7 | 1 | — | — | — | — | — | — | 1 | |
max °C | 1 | 7 | 9 | 8 | 10 | 9 | 14 | 15 | 14 | 12 | 10 | 12 | 11 | 15 | 16 | 14 |
min °C | 0 | 4 | 7 | 6 | 9 | 8 | 10 | 14 | 14 | 6 | 8 | 11 | 10 | 14 | 15 | 11 |
-6 | 2 | 5 | 3 | 4 | 3 | 5 | 11 | 11 | 1 | 4 | 9 | 8 | 13 | 13 | 7 | |
51 | 22 | 44 | 32 | 44 | 70 | 97 | 98 | 73 | 75 | 70 | 31 | 23 | 22 | 32 | 33 | |
1000 | 2000 | 3150 | 3600 | 3550 | 3800 | 3950 | 3850 | 4000 | 3500 | 3450 | 3450 | 3550 | 3450 | 3700 | 3850 | |
 | — | 5:48 | — | — | 5:48 | — | — | 5:47 | — | — | 5:45 | — | — | 5:43 | — | — |
 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | — | 6:39 | — |
Heavy rain (total 30.0mm), heaviest during Thu night. Freeze-thaw conditions (max 15°C on Fri morning, min 0°C on Tue night). Winds increasing (calm on Wed morning, gales from the SSW by Thu night).
Moderate rain (total 12.0mm), heaviest on Mon morning. Very mild (max 16°C on Sun afternoon, min 6°C on Fri night). Winds increasing (light winds from the NNW on Sat night, near gales from the SSW by Mon morning).
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. |
|---|---|
0.1 | 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 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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