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Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 23.0mm), heaviest during Wed morning. Freeze-thaw conditions (max 9°C on Tue night, min 0°C on Mon morning). Winds increasing (calm on Mon night, strong winds from the SSW by Wed morning).
Osa Weather (Days 4-6): Mild with light rain (total 4.0mm) on Thu morning Becoming colder with a light covering of snow, mostly falling on Thu night. Freeze-thaw conditions (max 4°C on Thu morning, min -8°C on Thu night). Winds decreasing (near gales from the WNW on Thu night, light winds from the W by Sat morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0 |  | ||||
| Bottom Lift: | 2 |  |
Latest snow reports near Osa:
Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | |  | |  |  | |  | | | | | | |  | | |
light snow | clear | some clouds | clear | some clouds | light rain | heavy rain | mod. rain | light rain | light rain | light snow | light snow | light snow | light snow | light snow | light snow | cloudy | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 1 | — | — | — | — | |
— | — | — | — | — | 2 | 12 | 6 | 3 | 4 | — | — | — | — | — | — | — | — | |
max °C | 0 | 0 | 3 | 7 | 7 | 9 | 8 | 7 | 5 | 4 | -2 | -5 | -6 | -6 | -5 | -3 | -3 | -3 |
min °C | 0 | 0 | 1 | 5 | 6 | 7 | 8 | 6 | 4 | 2 | -2 | -8 | -6 | -6 | -6 | -5 | -4 | -3 |
-6 | -3 | -1 | 3 | 2 | 3 | 3 | 3 | 2 | -4 | -10 | -20 | -16 | -15 | -14 | -10 | -8 | -7 | |
89 | 83 | 39 | 27 | 39 | 48 | 98 | 99 | 98 | 98 | 86 | 91 | 93 | 89 | 90 | 92 | 87 | 66 | |
1000 | 1000 | 1950 | 2600 | 2450 | 2700 | 2700 | 2450 | 2050 | 1650 | 850 | 0 | 200 | 300 | 250 | 450 | 700 | 0 | |
 | 7:13 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:16 | — | — | 7:16 | — | — |
 | — | 5:04 | — | — | 5:04 | — | — | 5:05 | — | — | 5:05 | — | — | 5:06 | — | — | 5:06 | — |
Heavy rain (total 23.0mm), heaviest during Wed morning. Freeze-thaw conditions (max 9°C on Tue night, min 0°C on Mon morning). Winds increasing (calm on Mon night, strong winds from the SSW by Wed morning).
Mild with light rain (total 4.0mm) on Thu morning Becoming colder with a light covering of snow, mostly falling on Thu night. Freeze-thaw conditions (max 4°C on Thu morning, min -8°C on Thu night). Winds decreasing (near gales from the WNW on Thu night, light winds from the W by Sat morning).
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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