Osa Weather (Next 3 days): The snow forecast for Osa is: Heavy rain (total 30.0mm), heaviest during Tue night. Very mild (max 12°C on Sun afternoon, min 1°C on Sun night). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the W by Mon afternoon).
Osa Weather (Days 4-6): Heavy rain (total 62.0mm), heaviest during Fri night. Later becoming colder with a dusting of snow on Sat morning. Very mild (max 11°C on Thu afternoon, min 1°C on Sat morning). Winds increasing (calm on Wed afternoon, near gales from the N by Sat morning).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 11 |  | ||||
| Bottom Lift: | 12 | |
Sun 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | Friday 27 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | | |  |  |  |  |  | | | | | |  | |  | | |
some clouds | clear | some clouds | clear | some clouds | cloudy | light rain | heavy rain | light rain | light rain | clear | some clouds | light rain | mod. rain | light rain | mod. rain | heavy rain | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | 3 | 22 | 5 | 1 | — | — | 1 | 6 | 1 | 9 | 44 | |
max °C | 12 | 10 | 6 | 8 | 7 | 9 | 8 | 8 | 8 | 8 | 9 | 10 | 11 | 10 | 10 | 9 | 8 |
min °C | 11 | 1 | 3 | 6 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 10 | 10 | 9 | 10 | 9 | 3 |
7 | -5 | -2 | 4 | 5 | 4 | 3 | 4 | 6 | 8 | 6 | 9 | 9 | 7 | 8 | 8 | -4 | |
78 | 90 | 23 | 11 | 11 | 59 | 93 | 99 | 97 | 97 | 83 | 84 | 90 | 97 | 98 | 98 | 98 | |
2850 | 2900 | 2050 | 2650 | 2900 | 2650 | 2800 | 2700 | 2650 | 3050 | 3200 | 3300 | 3050 | 2900 | 2800 | 2900 | 2500 | |
 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — |
 | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — |
Heavy rain (total 30.0mm), heaviest during Tue night. Very mild (max 12°C on Sun afternoon, min 1°C on Sun night). Winds decreasing (strong winds from the SW on Sun afternoon, light winds from the W by Mon afternoon).
Heavy rain (total 62.0mm), heaviest during Fri night. Later becoming colder with a dusting of snow on Sat morning. Very mild (max 11°C on Thu afternoon, min 1°C on Sat morning). Winds increasing (calm on Wed afternoon, near gales from the N by Sat morning).
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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