Sunday 1 | Monday 2 | Tuesday 3 | Wednesday 4 | Thursday 5 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | |  |  |  |  | | | |  | |  | | |  | |
clear | some clouds | some clouds | heavy rain | mod. rain | light rain | some clouds | some clouds | some clouds | some clouds | cloudy | cloudy | cloudy | some clouds | light rain | light rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | — | — | — | 16 | 9 | 3 | — | — | — | — | — | — | — | — | 2 | 3 |
max °C | 10 | 13 | 14 | 12 | 12 | 10 | 8 | 9 | 9 | 8 | 11 | 11 | 12 | 15 | 13 | 12 |
min °C | 9 | 12 | 11 | 11 | 12 | 9 | 7 | 8 | 8 | 7 | 10 | 10 | 11 | 13 | 12 | 10 |
chill °C | 6 | 11 | 10 | 9 | 11 | 5 | 3 | 5 | 6 | 5 | 8 | 8 | 9 | 12 | 10 | 7 |
Humid % | 79 | 43 | 57 | 74 | 100 | 96 | 85 | 72 | 74 | 57 | 47 | 45 | 62 | 56 | 80 | 88 |
Freeze m | 3250 | 3650 | 3850 | 3350 | 3850 | 3350 | 3500 | 3300 | 3150 | 3150 | 3200 | 2850 | 2650 | 3500 | 3350 | 3500 |
 | — | 6:31 | — | — | 6:31 | — | — | 6:31 | — | — | 6:33 | — | — | 6:33 | — | — |
 | — | — | 5:16 | — | — | 5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:14 | — |
Next 4 days weather summary:Heavy rain (total 28.0mm), heaviest during Sun night. Very mild (max 14°C on Sun afternoon, min 7°C on Mon night). Winds increasing (light winds from the W on Sat night, fresh winds from the SSW by Sun night). | Days 5-7 weather summary:Light rain (total 6.0mm), mostly falling on Thu afternoon. Very mild (max 15°C on Thu morning, min 6°C on Fri afternoon). Wind will be generally light. | |||||||||||||||
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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