Osa Weather (Next 3 days): The snow forecast for Osa is: Some drizzle, heaviest during Sun night. Freeze-thaw conditions (max 10°C on Sun afternoon, min 0°C on Sun night). Winds decreasing (near gales from the WSW on Sun night, light winds from the W by Mon night).
Osa Weather (Days 4-6): Heavy rain (total 29.0mm), heaviest during Tue night. Very mild (max 11°C on Thu afternoon, min 5°C on Tue night). Winds decreasing (strong winds from the SSW on Tue afternoon, calm by Thu afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 6 |  | ||||
| Bottom Lift: | 10 | |
Saturday 21 | Sunday 22 | Monday 23 | Tuesday 24 | Wednesday 25 | Thursday 26 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
| |  | |  |  | | |  |  |  |  | | | | | |  | |
clear | clear | clear | clear | some clouds | rain shwrs | clear | some clouds | some clouds | cloudy | mod. rain | heavy rain | cloudy | clear | clear | clear | clear | cloudy | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | 1 | — | — | — | — | 6 | 23 | — | — | — | — | — | — | |
max °C | 6 | 7 | 6 | 9 | 10 | 9 | 4 | 6 | 7 | 7 | 8 | 8 | 6 | 7 | 6 | 9 | 11 | 9 |
min °C | 4 | 6 | 5 | 8 | 10 | 0 | 2 | 5 | 6 | 7 | 8 | 5 | 5 | 6 | 6 | 8 | 9 | 8 |
-1 | 4 | 1 | 4 | 6 | -6 | -3 | 2 | 4 | 3 | 3 | 2 | 1 | 3 | 3 | 6 | 8 | 5 | |
44 | 49 | 38 | 79 | 83 | 65 | 33 | 14 | 13 | 42 | 95 | 99 | 86 | 80 | 72 | 75 | 74 | 78 | |
1750 | 2350 | 2800 | 2650 | 2900 | 3050 | 1550 | 2500 | 2850 | 2650 | 2600 | 2700 | 2650 | 3100 | 3250 | 3300 | 3300 | 3150 | |
 | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — |
 | — | 5:59 | — | — | 5:59 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:02 | — |
Some drizzle, heaviest during Sun night. Freeze-thaw conditions (max 10°C on Sun afternoon, min 0°C on Sun night). Winds decreasing (near gales from the WSW on Sun night, light winds from the W by Mon night).
Heavy rain (total 29.0mm), heaviest during Tue night. Very mild (max 11°C on Thu afternoon, min 5°C on Tue night). Winds decreasing (strong winds from the SSW on Tue afternoon, calm by Thu afternoon).
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. |
|---|---|
0.9 | Powder days Fresh snow, limited sun, any wind. |
1.3 | 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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