By using Snow-Forecast, you agree to our Terms & Services.
Sign In with AppleDon't have an account? Join now
Osa Weather (Next 3 days): The snow forecast for Osa is: A dusting of new snow. Temperatures will be below freezing (max 0°C on Sun night, min -3°C on Mon night). Winds decreasing (strong winds from the WNW on Mon afternoon, light winds from the WNW by Tue afternoon).
Osa Weather (Days 4-6): A dusting of snow on Thu morning. Freezing level rising with drizzle on Sat morning. Freeze-thaw conditions (max 2°C on Fri night, min -4°C on Wed night). Winds increasing (light winds from the NW on Thu night, gales from the W by Sat afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -1 |  | ||||
| Bottom Lift: | 1 | |
Latest snow reports near Osa:
Monday 5 | Tuesday 6 | Wednesday 7 | Thursday 8 | Friday 9 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  |  | |  | | | | |  | | | | |
light snow | light snow | cloudy | light snow | snow shwrs | some clouds | cloudy | clear | snow shwrs | light snow | light snow | snow shwrs | clear | clear | clear | cloudy | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | — | 2 | — | — | — | — | — | 1 | 2 | 1 | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 0 | 0 | -2 | -2 | -2 | -1 | -2 | 0 | 0 | -1 | -2 | -2 | -3 | 0 | 1 | 2 |
min °C | -1 | -1 | -2 | -3 | -3 | -2 | -2 | -1 | -1 | -4 | -3 | -3 | -4 | -2 | -2 | -1 |
-7 | -8 | -10 | -11 | -9 | -6 | -6 | -7 | -8 | -11 | -8 | -7 | -7 | -7 | -9 | -8 | |
89 | 93 | 87 | 93 | 84 | 72 | 46 | 84 | 79 | 92 | 95 | 88 | 88 | 81 | 71 | 88 | |
900 | 1050 | 850 | 650 | 700 | 900 | 450 | 950 | 1050 | 850 | 650 | 700 | 0 | 800 | 1100 | 1050 | |
 | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — | 7:18 | — | — |
 | — | — | 5:13 | — | — | 5:14 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — |
A dusting of new snow. Temperatures will be below freezing (max 0°C on Sun night, min -3°C on Mon night). Winds decreasing (strong winds from the WNW on Mon afternoon, light winds from the WNW by Tue afternoon).
A dusting of snow on Thu morning. Freezing level rising with drizzle on Sat morning. Freeze-thaw conditions (max 2°C on Fri night, min -4°C on Wed night). Winds increasing (light winds from the NW on Thu night, gales from the W by Sat afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 22 cm |
| Last snowfall: | 3 Jan 2026 |
| Snow Alerts | Create Alert |
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.2 | 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.
Snow Report
Webcams
Ski Resort Guide
Snow History
Snow Alerts
Snow
Sign up or Login to access
Nearest