Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 40.0mm), heaviest during Tue night. Very mild (max 10°C on Thu morning, min 6°C on Wed morning). Winds decreasing (fresh winds from the S on Tue night, calm by Thu afternoon).
Osa Weather (Days 4-6): Heavy rain (total 21.0mm), heaviest during Fri afternoon. Very mild (max 10°C on Fri morning, min 1°C on Fri night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 9 |  | ||||
| Bottom Lift: | 12 | |
Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | Sunday 1 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | | | |  |  | |  |  | | |  | |
cloudy | light rain | heavy rain | mod. rain | light rain | light rain | cloudy | cloudy | light rain | cloudy | heavy rain | mod. rain | some clouds | clear | some clouds | cloudy | cloudy | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | 2 | 24 | 10 | 2 | 1 | — | — | 1 | — | 15 | 6 | — | — | — | — | — | — | |
max °C | 9 | 8 | 8 | 7 | 8 | 8 | 10 | 9 | 9 | 10 | 9 | 4 | 5 | 7 | 8 | 9 | 8 | 7 |
min °C | 9 | 8 | 7 | 6 | 7 | 7 | 8 | 9 | 9 | 10 | 5 | 1 | 1 | 6 | 6 | 8 | 6 | 6 |
6 | 5 | 6 | 4 | 4 | 4 | 6 | 9 | 8 | 8 | 1 | -5 | -5 | 2 | 2 | 5 | 5 | 5 | |
30 | 79 | 99 | 98 | 99 | 94 | 95 | 95 | 87 | 83 | 98 | 98 | 87 | 46 | 33 | 26 | 60 | 87 | |
2850 | 2650 | 2650 | 2800 | 2900 | 3150 | 3250 | 3250 | 2950 | 2600 | 2600 | 2300 | 1200 | 3200 | 3200 | 3050 | 2950 | 2700 | |
 | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — |
 | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — |
Heavy rain (total 40.0mm), heaviest during Tue night. Very mild (max 10°C on Thu morning, min 6°C on Wed morning). Winds decreasing (fresh winds from the S on Tue night, calm by Thu afternoon).
Heavy rain (total 21.0mm), heaviest during Fri afternoon. Very mild (max 10°C on Fri morning, min 1°C on Fri night). Wind will be generally light.
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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