Sunday 11 | Monday 12 | Tuesday 13 | Wednesday 14 | Thursday 15 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  | | |  |  |  |  |  | | | | | | |
rain shwrs | clear | clear | some clouds | clear | clear | clear | cloudy | t-storm risk | mod. rain | rain shwrs | rain shwrs | clear | clear | clear | clear | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | — | — | — | — | — | — | — | 3 | 10 | 2 | 2 | — | — | — | — |
max °C | 17 | 19 | 19 | 17 | 20 | 19 | 17 | 18 | 18 | 17 | 11 | 10 | 8 | 13 | 14 | 13 |
min °C | 16 | 18 | 17 | 16 | 18 | 18 | 16 | 18 | 17 | 13 | 11 | 9 | 8 | 11 | 12 | 12 |
chill °C | 16 | 18 | 17 | 16 | 18 | 18 | 16 | 18 | 16 | 10 | 8 | 6 | 5 | 10 | 12 | 12 |
Humid % | 87 | 71 | 75 | 78 | 54 | 66 | 62 | 74 | 90 | 97 | 91 | 89 | 71 | 55 | 36 | 32 |
Freeze m | 4550 | 4300 | 4250 | 4200 | 4050 | 4100 | 4050 | 4050 | 3950 | 3950 | 3550 | 3450 | 3600 | 3600 | 3550 | 3650 |
 | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — |
 | — | — | 5:42 | — | — | 5:40 | — | — | 5:39 | — | — | 5:37 | — | — | 5:37 | — |
Next 4 days weather summary:Light rain (total 4.0mm), mostly falling on Tue afternoon. Warm (max 20°C on Mon morning, min 16°C on Sat night). Wind will be generally light. | Days 5-7 weather summary:Moderate rain (total 14.0mm), heaviest on Tue night. Very mild (max 17°C on Tue night, min 8°C on Wed night). Winds decreasing (fresh winds from the WNW on Tue night, calm by Thu afternoon). | |||||||||||||||
SnowPro
Hourly & 16-day forecastsView past weatherFast, ad-free browsingSnow hindcasts & HistoryAvalanche information: Japan Avalanche Network
Latest snow reports near Osa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 13 Mar 2026 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | Powder days Fresh snow, limited sun, any wind. |
0.0 | 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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