Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | Thursday 29 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | | | |  |  |  |  | | |  | |  | |
heavy rain | heavy rain | mod. rain | heavy rain | heavy rain | mod. rain | heavy rain | light rain | rain shwrs | some clouds | clear | clear | some clouds | cloudy | cloudy | light rain | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 18 | 38 | 8 | 12 | 13 | 9 | 17 | 2 | 3 | — | — | — | — | — | — | 3 |
max °C | 19 | 18 | 17 | 17 | 17 | 17 | 17 | 13 | 11 | 8 | 6 | 7 | 8 | 11 | 12 | 11 |
min °C | 18 | 16 | 16 | 16 | 17 | 17 | 13 | 13 | 10 | 4 | 5 | 6 | 6 | 10 | 10 | 10 |
chill °C | 17 | 16 | 16 | 16 | 16 | 16 | 11 | 11 | 6 | -1 | 1 | 6 | 5 | 9 | 8 | 7 |
Humid % | 84 | 99 | 89 | 94 | 93 | 98 | 99 | 90 | 96 | 78 | 81 | 70 | 49 | 41 | 63 | 78 |
Freeze m | 4600 | 4800 | 4600 | 4850 | 4650 | 5100 | 5000 | 4650 | 3750 | 1500 | 1450 | 2150 | 3100 | 3250 | 3150 | 2750 |
 | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — |
 | — | — | 5:24 | — | — | 5:23 | — | — | 5:22 | — | — | 5:22 | — | — | 5:21 | — |
Next 4 days weather summary:Heavy rain (total 120.0mm), heaviest during Sun morning. Very mild (max 19°C on Sat night, min 10°C on Tue afternoon). Winds decreasing (strong winds from the SSW on Sat night, calm by Sun afternoon). | Days 5-7 weather summary:Moderate rain (total 13.0mm), heaviest on Fri morning. Very mild (max 13°C on Fri afternoon, min 4°C on Tue night). Winds decreasing (strong winds from the NW on Tue night, calm by Wed 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.
Sign up or Login to access
Nearest