Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 9.0mm), mostly falling on Fri afternoon. Very mild (max 10°C on Thu afternoon, min 1°C on Fri night). Wind will be generally light.
Osa Weather (Days 4-6): Light rain (total 9.0mm) at first, then becoming colder with a dusting of snow on Mon afternoon. Mild temperatures (max 7°C on Sun morning, min 1°C on Mon afternoon). Winds increasing (calm on Sun afternoon, strong winds from the NE by Tue morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 9 |  | ||||
| Bottom Lift: | 13 |  |
Thursday 26 | Friday 27 | Saturday 28 | Sunday 1 | Monday 2 | Tuesday 3 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  | |  | | |  | | |  | |  | | | |  | |
clear | cloudy | cloudy | light rain | light rain | light snow | cloudy | clear | some clouds | cloudy | cloudy | light rain | light rain | light snow | light snow | clear | clear | clear | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | — | |
— | — | — | 1 | 5 | 3 | — | — | — | — | — | 1 | 4 | — | 4 | — | — | — | |
max °C | 9 | 10 | 8 | 8 | 8 | 7 | 2 | 6 | 6 | 7 | 7 | 6 | 3 | 2 | 3 | 5 | 4 | 4 |
min °C | 8 | 8 | 8 | 8 | 8 | 1 | 1 | 4 | 5 | 7 | 6 | 4 | 3 | 1 | 2 | 4 | 4 | 3 |
6 | 7 | 6 | 5 | 6 | -4 | -4 | 0 | 1 | 5 | 6 | 4 | 0 | -4 | -5 | -2 | -2 | -3 | |
76 | 87 | 90 | 86 | 97 | 99 | 81 | 50 | 34 | 21 | 53 | 60 | 93 | 97 | 59 | 27 | 32 | 39 | |
3350 | 3400 | 3200 | 2500 | 2450 | 3050 | 1150 | 3100 | 3100 | 2900 | 2950 | 2550 | 1800 | 1450 | 1800 | 2150 | 1950 | 2350 | |
 | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:37 | — | — |
 | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — | — | 6:07 | — | — | 6:07 | — |
Light rain (total 9.0mm), mostly falling on Fri afternoon. Very mild (max 10°C on Thu afternoon, min 1°C on Fri night). Wind will be generally light.
Light rain (total 9.0mm) at first, then becoming colder with a dusting of snow on Mon afternoon. Mild temperatures (max 7°C on Sun morning, min 1°C on Mon afternoon). Winds increasing (calm on Sun afternoon, strong winds from the NE by Tue morning).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 18 Feb 2026 |
| Snow Alerts | Create Alert |
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.6 | 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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