Osa Weather (Next 3 days): The snow forecast for Osa is: Some drizzle, heaviest during Thu night. Mild temperatures (max 8°C on Fri afternoon, min 3°C on Thu night). Winds decreasing (strong winds from the WSW on Thu afternoon, light winds from the WNW by Sat night).
Osa Weather (Days 4-6): Drizzle on Mon night turning to light snow on Tue night. Freeze-thaw conditions (max 5°C on Sun afternoon, min -7°C on Wed morning). Winds increasing (light winds from the W on Sun afternoon, strong winds from the WNW by Wed morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 5 |  | ||||
| Bottom Lift: | 7 | |
Latest snow reports near Osa:
Thu 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  | |  |  | | | | | | | |  |  | |  | |
cloudy | rain shwrs | clear | clear | clear | some clouds | some clouds | clear | clear | clear | clear | some clouds | cloudy | light snow | light snow | light snow | mod. snow | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 5 | |
— | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | |
max °C | 6 | 5 | 7 | 8 | 6 | 5 | 3 | 3 | 4 | 5 | 3 | 3 | 3 | 2 | 0 | -1 | -3 |
min °C | 6 | 3 | 6 | 6 | 4 | 4 | 3 | 3 | 4 | 3 | 2 | 3 | 2 | 0 | -1 | -2 | -4 |
0 | -2 | 3 | 3 | -1 | -1 | -1 | 1 | 1 | 0 | -1 | -1 | -3 | -6 | -7 | -9 | -12 | |
85 | 83 | 33 | 27 | 27 | 64 | 77 | 44 | 29 | 37 | 41 | 50 | 81 | 98 | 96 | 88 | 93 | |
1950 | 1800 | 2100 | 2100 | 2250 | 1750 | 1450 | 2000 | 2150 | 2100 | 1950 | 1650 | 1400 | 1350 | 900 | 900 | 500 | |
 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — |
 | 5:22 | — | — | 5:22 | — | — | 5:23 | — | — | 5:24 | — | — | 5:25 | — | — | 5:27 | — |
Some drizzle, heaviest during Thu night. Mild temperatures (max 8°C on Fri afternoon, min 3°C on Thu night). Winds decreasing (strong winds from the WSW on Thu afternoon, light winds from the WNW by Sat night).
Drizzle on Mon night turning to light snow on Tue night. Freeze-thaw conditions (max 5°C on Sun afternoon, min -7°C on Wed morning). Winds increasing (light winds from the W on Sun afternoon, strong winds from the WNW by Wed morning).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 11 Jan 2026 |
| Snow Alerts | Create Alert |
0.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.4 | 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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