Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 24.0mm), heaviest during Mon night. Later becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 7°C on Mon morning, min -3°C on Tue night). Mainly near gales.
Osa Weather (Days 4-6): Mild with moderate rain (total 14.0mm) on Fri afternoon, Becoming colder with a light covering of snow, mostly falling on Fri night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -3°C on Fri night). Winds increasing (calm on Thu afternoon, gales from the NW by Sat morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 7 |  | ||||
| Bottom Lift: | 10 | |
Monday 2 | Tuesday 3 | Wednesday 4 | Thursday 5 | Friday 6 | Saturday 7 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  |  |  | | |  |  | |  | | | | | | | |
cloudy | light rain | heavy rain | mod. rain | light snow | light snow | light snow | light snow | snow shwrs | some clouds | some clouds | some clouds | light rain | mod. rain | light snow | light snow | light snow | light snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | 1 | — | — | — | — | — | — | — | — | 3 | 1 | 1 | 1 | |
— | 2 | 14 | 8 | — | — | — | — | — | — | — | — | 3 | 8 | 3 | — | — | — | |
max °C | 7 | 7 | 6 | 6 | 2 | -1 | -2 | -2 | -2 | 1 | 4 | 4 | 3 | 4 | 2 | -2 | -2 | -3 |
min °C | 7 | 5 | 6 | 4 | 0 | -3 | -2 | -2 | -3 | 0 | 3 | 4 | 3 | 3 | -3 | -2 | -3 | -3 |
4 | 1 | 1 | -1 | -8 | -11 | -9 | -9 | -10 | -5 | 1 | 3 | -1 | -3 | -12 | -12 | -12 | -10 | |
65 | 79 | 98 | 99 | 98 | 97 | 96 | 95 | 96 | 48 | 61 | 43 | 74 | 94 | 96 | 96 | 95 | 96 | |
2450 | 2200 | 3050 | 2950 | 1250 | 850 | 750 | 800 | 750 | 1000 | 1400 | 2050 | 1650 | 1650 | 850 | 750 | 750 | 550 | |
 | 6:39 | — | — | 6:37 | — | — | 6:37 | — | — | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — |
Heavy rain (total 24.0mm), heaviest during Mon night. Later becoming colder with a dusting of snow on Tue night. Freeze-thaw conditions (max 7°C on Mon morning, min -3°C on Tue night). Mainly near gales.
Mild with moderate rain (total 14.0mm) on Fri afternoon, Becoming colder with a light covering of snow, mostly falling on Fri night. Freeze-thaw conditions (max 4°C on Thu afternoon, min -3°C on Fri night). Winds increasing (calm on Thu afternoon, gales from the NW by Sat morning).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.4 | Powder days Fresh snow, limited sun, any wind. |
0.7 | 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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