Osa Weather (Next 3 days): The snow forecast for Osa is: A moderate fall of snow, heaviest on Fri night. Temperatures will be below freezing (max -3°C on Fri night, min -8°C on Wed night). Winds increasing (light winds from the WNW on Wed morning, strong winds from the WNW by Wed night).
Osa Weather (Days 4-6): A moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 1°C on Mon afternoon, min -7°C on Sat afternoon). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the NW by Sun night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -8 |  | ||||
| Bottom Lift: | -4 | |
Latest snow reports near Osa:
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | | | | | |  | | | | | | |  |  | | |
light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | mod. snow | light snow | light snow | light snow | snow shwrs | light snow | light snow | some clouds | cloudy | mod. snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
3 | — | 1 | 1 | — | — | — | — | 8 | 1 | 1 | 1 | — | — | 1 | — | — | 7 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -4 | -6 | -7 | -7 | -8 | -6 | -5 | -4 | -3 | -5 | -6 | -5 | -5 | -4 | -4 | 0 | 1 | 0 |
min °C | -5 | -7 | -8 | -8 | -8 | -7 | -6 | -4 | -4 | -6 | -7 | -6 | -6 | -4 | -6 | -2 | -1 | -2 |
-13 | -17 | -19 | -18 | -19 | -17 | -16 | -12 | -12 | -16 | -18 | -15 | -15 | -12 | -10 | -5 | -5 | -6 | |
96 | 85 | 82 | 86 | 83 | 86 | 87 | 82 | 96 | 87 | 84 | 85 | 87 | 83 | 95 | 72 | 56 | 99 | |
300 | 150 | 0 | 0 | 0 | 0 | 0 | 400 | 350 | 300 | 0 | 0 | 0 | 400 | 0 | 450 | 950 | 900 | |
 | 7:16 | — | — | 7:15 | — | — | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — |
 | — | 5:28 | — | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — |
A moderate fall of snow, heaviest on Fri night. Temperatures will be below freezing (max -3°C on Fri night, min -8°C on Wed night). Winds increasing (light winds from the WNW on Wed morning, strong winds from the WNW by Wed night).
A moderate fall of snow, heaviest on Mon night. Freeze-thaw conditions (max 1°C on Mon afternoon, min -7°C on Sat afternoon). Winds decreasing (strong winds from the WNW on Sat afternoon, light winds from the NW by Sun night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 2 cm |
| Last snowfall: | 20 Jan 2026 |
| Snow Alerts | Create Alert |
0.3 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | Powder days Fresh snow, limited sun, any wind. |
1.0 | 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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