Osa Weather (Next 3 days): The snow forecast for Osa is: Light rain (total 3.0mm), mostly falling on Thu morning. Mild temperatures (max 8°C on Sat afternoon, min 1°C on Thu night). Wind will be generally light.
Osa Weather (Days 4-6): Heavy rain (total 22.0mm), heaviest during Sun night. Very mild (max 11°C on Sun afternoon, min 3°C on Mon night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 2 |  | ||||
| Bottom Lift: | 4 |  |
Thursday 19 | Friday 20 | Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  | | |  | |  |  | |  | | | | | | | |
light rain | rain shwrs | some clouds | some clouds | some clouds | some clouds | clear | clear | clear | cloudy | light rain | heavy rain | clear | clear | some clouds | clear | clear | some clouds | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
2 | 1 | — | — | — | — | — | — | — | — | 1 | 21 | — | — | — | — | — | — | |
max °C | 3 | 3 | 3 | 4 | 4 | 2 | 7 | 8 | 5 | 10 | 11 | 7 | 8 | 7 | 4 | 8 | 9 | 6 |
min °C | 3 | 3 | 1 | 3 | 2 | 1 | 5 | 6 | 4 | 7 | 8 | 5 | 6 | 6 | 3 | 5 | 7 | 6 |
-1 | 0 | -3 | -2 | -4 | -1 | 5 | 6 | 0 | 4 | 7 | 5 | 4 | 3 | -1 | 3 | 7 | 5 | |
95 | 89 | 61 | 54 | 44 | 59 | 27 | 46 | 52 | 62 | 53 | 89 | 69 | 71 | 67 | 30 | 45 | 58 | |
1300 | 1250 | 1300 | 1200 | 1350 | 1300 | 1550 | 1850 | 1900 | 1850 | 2250 | 1800 | 1800 | 1900 | 1950 | 1950 | 2400 | 2550 | |
 | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — |
 | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — |
Light rain (total 3.0mm), mostly falling on Thu morning. Mild temperatures (max 8°C on Sat afternoon, min 1°C on Thu night). Wind will be generally light.
Heavy rain (total 22.0mm), heaviest during Sun night. Very mild (max 11°C on Sun afternoon, min 3°C on Mon night). Wind will be generally light.
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.1 | Powder days Fresh snow, limited sun, any wind. |
0.2 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Osa at the specific elevation of 865 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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