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Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 3.0mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 6°C on Thu morning, min -4°C on Fri afternoon). Winds increasing (calm on Wed afternoon, strong winds from the NW by Thu night).
Osa Weather (Days 4-6): Mild at first with light rain (total 5.0mm) on Sat night followed by colder weather and light fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -3°C on Mon morning). Winds increasing (light winds from the SE on Sat morning, strong winds from the WNW by Sun afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 1 |  | ||||
| Bottom Lift: | 4 | |
Latest snow reports near Osa:
Wednesday 10 | Thursday 11 | Friday 12 | Saturday 13 | Sunday 14 | Monday 15 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  | |  |  |  |  |  |  | |  | | | |  | |  | |
cloudy | cloudy | cloudy | cloudy | light rain | snow shwrs | light snow | some clouds | clear | clear | cloudy | light snow | light snow | light snow | light snow | snow shwrs | light snow | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | 1 | 1 | — | — | — | — | 4 | 4 | 1 | 2 | 1 | — | — | |
— | — | — | — | 2 | 1 | — | — | — | — | — | 5 | — | — | — | — | — | — | |
max °C | 4 | 5 | 5 | 6 | 6 | 3 | -3 | -4 | -1 | 2 | 3 | 2 | 2 | -2 | -1 | -2 | -1 | -1 |
min °C | 1 | 3 | 4 | 5 | 6 | -3 | -3 | -4 | -3 | 0 | 1 | 1 | 0 | -2 | -2 | -3 | -2 | -2 |
-3 | 2 | 2 | 0 | 1 | -10 | -10 | -11 | -8 | -2 | -3 | -3 | -8 | -11 | -10 | -11 | -9 | -7 | |
52 | 34 | 33 | 53 | 93 | 81 | 96 | 83 | 52 | 39 | 39 | 98 | 99 | 90 | 96 | 85 | 87 | 91 | |
1250 | 1750 | 2150 | 1950 | 2000 | 1250 | 600 | 600 | 350 | 1100 | 1400 | 1300 | 1350 | 850 | 850 | 750 | 850 | 850 | |
 | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:09 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — |
Light rain (total 3.0mm) at first, then becoming colder with a dusting of snow on Fri morning. Freeze-thaw conditions (max 6°C on Thu morning, min -4°C on Fri afternoon). Winds increasing (calm on Wed afternoon, strong winds from the NW by Thu night).
Mild at first with light rain (total 5.0mm) on Sat night followed by colder weather and light fall of snow, heaviest on Sun morning. Freeze-thaw conditions (max 3°C on Sat afternoon, min -3°C on Mon morning). Winds increasing (light winds from the SE on Sat morning, strong winds from the WNW by Sun afternoon).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 4 Dec 2025 |
| Snow Alerts | Create Alert |
0.2 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.8 | 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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