Osa Weather (Next 3 days): The snow forecast for Osa is: Moderate rain (total 18.0mm) heaviest on Fri morning, then becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 6°C on Thu afternoon, min -4°C on Fri night). Winds increasing (calm on Thu afternoon, strong winds from the WNW by Fri night).
Osa Weather (Days 4-6): A dusting of new snow. Freeze-thaw conditions (max 1°C on Mon morning, min -5°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon night, calm by Tue night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 3 |  | ||||
| Bottom Lift: | 7 | |
Thursday 5 | Friday 6 | Saturday 7 | Sunday 8 | Monday 9 | Tuesday 10 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  |  |  |  | |  |  | | | |  | | | | |  | |
clear | clear | some clouds | heavy rain | light snow | light snow | light snow | some clouds | snow shwrs | some clouds | some clouds | some clouds | cloudy | light snow | snow shwrs | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | 1 | — | — | — | 1 | — | — | — | — | — | 2 | — | — | — | |
— | — | — | 13 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 3 | 6 | 6 | 4 | 4 | 0 | -2 | -3 | -3 | -1 | 0 | 0 | 1 | -1 | -2 | -1 | 0 | -1 |
min °C | 2 | 6 | 4 | 3 | 1 | -4 | -3 | -4 | -4 | -4 | 0 | -2 | -1 | -1 | -5 | -3 | -1 | -2 |
-1 | 5 | -2 | -2 | -6 | -12 | -10 | -12 | -12 | -9 | 0 | -5 | -4 | -7 | -12 | -8 | -3 | -2 | |
33 | 48 | 41 | 98 | 98 | 88 | 90 | 77 | 83 | 84 | 58 | 41 | 49 | 93 | 93 | 79 | 55 | 38 | |
1650 | 1950 | 2200 | 1750 | 1600 | 900 | 650 | 750 | 500 | 600 | 1050 | 900 | 950 | 950 | 600 | 650 | 1050 | 600 | |
 | 6:35 | — | — | 6:33 | — | — | 6:33 | — | — | 6:31 | — | — | 6:30 | — | — | 6:28 | — | — |
 | — | 6:08 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:13 | — | — | 6:13 | — |
Moderate rain (total 18.0mm) heaviest on Fri morning, then becoming colder with a dusting of snow on Sat night. Freeze-thaw conditions (max 6°C on Thu afternoon, min -4°C on Fri night). Winds increasing (calm on Thu afternoon, strong winds from the WNW by Fri night).
A dusting of new snow. Freeze-thaw conditions (max 1°C on Mon morning, min -5°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon night, calm by Tue night).
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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