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Osa Weather (Next 3 days): The snow forecast for Osa is: Mild with moderate rain (total 18.0mm) on Wed morning, Becoming colder with a light covering of snow, mostly falling on Thu night. Freeze-thaw conditions (max 8°C on Tue morning, min -8°C on Thu night). Winds increasing (light winds from the WSW on Wed morning, gales from the WNW by Thu night).
Osa Weather (Days 4-6): A heavy fall of snow, heaviest during Fri morning. Temperatures will be below freezing (max 0°C on Sun afternoon, min -6°C on Fri night). Winds decreasing (strong winds from the NW on Fri morning, light winds from the WSW by Sun night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 6 |  | ||||
| Bottom Lift: | 5 | |
Latest snow reports near Osa:
Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | Sunday 28 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  | |  | |  |  | | | | |  | | |  | |
clear | some clouds | light rain | mod. rain | light rain | light rain | light snow | light snow | mod. snow | mod. snow | mod. snow | mod. snow | light snow | light snow | light snow | some clouds | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | 1 | 8 | 9 | 6 | 6 | — | — | — | — | — | — | |
— | — | 1 | 9 | 3 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 8 | 6 | 8 | 8 | 8 | 7 | 5 | -2 | -6 | -5 | -5 | -5 | -4 | -3 | -2 | -1 | 0 | 0 |
min °C | 5 | 6 | 6 | 7 | 7 | 6 | 0 | -2 | -8 | -5 | -5 | -6 | -5 | -4 | -3 | -2 | -1 | -1 |
2 | 2 | 2 | 5 | 4 | 2 | -8 | -11 | -20 | -14 | -13 | -12 | -11 | -12 | -11 | -8 | -6 | -5 | |
36 | 66 | 55 | 91 | 98 | 99 | 97 | 88 | 91 | 96 | 96 | 97 | 92 | 90 | 91 | 92 | 91 | 54 | |
2500 | 2250 | 2650 | 2550 | 2550 | 2250 | 1850 | 800 | 0 | 250 | 350 | 300 | 350 | 600 | 600 | 800 | 1000 | 650 | |
 | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | 5:04 | — | — | 5:05 | — | — | 5:05 | — | — | 5:06 | — | — | 5:06 | — | — | 5:07 | — |
Mild with moderate rain (total 18.0mm) on Wed morning, Becoming colder with a light covering of snow, mostly falling on Thu night. Freeze-thaw conditions (max 8°C on Tue morning, min -8°C on Thu night). Winds increasing (light winds from the WSW on Wed morning, gales from the WNW by Thu night).
A heavy fall of snow, heaviest during Fri morning. Temperatures will be below freezing (max 0°C on Sun afternoon, min -6°C on Fri night). Winds decreasing (strong winds from the NW on Fri morning, light winds from the WSW by Sun night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Dec 2025 |
| Snow Alerts | Create Alert |
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | 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 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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