Osa Weather (Next 3 days): The snow forecast for Osa is: Mostly dry. Mild temperatures (max 9°C on Sun morning, min 1°C on Thu night). Winds decreasing (fresh winds from the NW on Fri afternoon, calm by Fri night).
Osa Weather (Days 4-6): Moderate rain (total 12.0mm), heaviest on Sun night. Very mild (max 10°C on Sun afternoon, min 1°C on Mon night). Winds decreasing (fresh winds from the NNE on Mon night, calm by Tue night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 2 |  | ||||
| Bottom Lift: | 4 | |
Thu 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | |  | |  | |  |  |  | | | | | | |
cloudy | some clouds | cloudy | some clouds | some clouds | clear | clear | clear | cloudy | light rain | mod. rain | rain shwrs | clear | clear | clear | clear | some clouds | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | 1 | 8 | 2 | — | — | — | — | — | |
max °C | 2 | 2 | 3 | 3 | 2 | 6 | 7 | 4 | 9 | 10 | 6 | 6 | 5 | 3 | 5 | 6 | 5 |
min °C | 2 | 1 | 1 | 1 | 1 | 4 | 5 | 4 | 6 | 7 | 5 | 5 | 4 | 1 | 4 | 6 | 5 |
-1 | -4 | -4 | -5 | -4 | 4 | 5 | 1 | 2 | 6 | 2 | 2 | -1 | -4 | 0 | 5 | 4 | |
90 | 46 | 68 | 40 | 54 | 30 | 46 | 51 | 58 | 58 | 88 | 89 | 59 | 64 | 31 | 47 | 57 | |
1300 | 1500 | 1200 | 1400 | 1350 | 1500 | 1950 | 1900 | 1950 | 2300 | 1850 | 1800 | 1750 | 1450 | 1550 | 2200 | 2300 | |
 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — |
 | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — |
Mostly dry. Mild temperatures (max 9°C on Sun morning, min 1°C on Thu night). Winds decreasing (fresh winds from the NW on Fri afternoon, calm by Fri night).
Moderate rain (total 12.0mm), heaviest on Sun night. Very mild (max 10°C on Sun afternoon, min 1°C on Mon night). Winds decreasing (fresh winds from the NNE on Mon night, calm by Tue night).
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.4 | 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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