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Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Heavy rain (total 28.0mm), mainly falling Sun afternoon. Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 6°C on Mon morning, min -2°C on Mon night). Winds decreasing (strong winds from the WSW on Mon morning, light winds from the W by Tue night).
Oyasu Onsen Weather (Days 4-6): Moderate rain (total 14.0mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Fri morning. Freeze-thaw conditions (max 3°C on Wed night, min -6°C on Fri morning). Winds increasing (calm on Thu morning, fresh winds from the NW by Fri afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 5 |  | ||||
| Bottom Lift: | 6 | |
Latest snow reports near Oyasu Onsen:
Sunday 7 | Monday 8 | Tuesday 9 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  | |  |  | | | |  |  | | | |  |  | | | |
light rain | mod. rain | rain shwrs | mod. rain | light snow | light snow | light snow | light snow | light snow | some clouds | cloudy | light snow | light snow | light rain | heavy snow | mod. snow | mod. snow | heavy snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | 1 | 2 | — | 1 | 4 | — | — | 2 | 1 | — | 14 | 9 | 7 | 11 | |
4 | 8 | 4 | 7 | 5 | — | — | — | — | — | — | 11 | — | 3 | — | — | — | — | |
max °C | 5 | 5 | 5 | 6 | 3 | 0 | -1 | -1 | 0 | 1 | 1 | 3 | 1 | 2 | 1 | -6 | -6 | -4 |
min °C | 4 | 5 | 5 | 6 | 1 | -2 | -1 | -2 | -2 | 0 | -1 | 1 | 1 | 2 | -4 | -6 | -6 | -5 |
0 | 1 | 1 | 2 | -6 | -9 | -8 | -7 | -6 | -5 | -5 | -4 | -2 | -2 | -11 | -15 | -15 | -13 | |
97 | 98 | 94 | 95 | 97 | 83 | 81 | 87 | 97 | 75 | 76 | 99 | 98 | 100 | 95 | 94 | 94 | 94 | |
1200 | 1500 | 1300 | 1400 | 1000 | 450 | 450 | 400 | 0 | 550 | 650 | 1000 | 700 | 1050 | 0 | 0 | 0 | 0 | |
 | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — | 6:45 | — | — | 6:46 | — | — |
 | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:14 | — | — | 4:15 | — |
Heavy rain (total 28.0mm), mainly falling Sun afternoon. Becoming colder with a light covering of snow, mostly falling on Tue night. Freeze-thaw conditions (max 6°C on Mon morning, min -2°C on Mon night). Winds decreasing (strong winds from the WSW on Mon morning, light winds from the W by Tue night).
Moderate rain (total 14.0mm) on Wed night. Becoming colder with heavy fall of snow, heaviest during Fri morning. Freeze-thaw conditions (max 3°C on Wed night, min -6°C on Fri morning). Winds increasing (calm on Thu morning, fresh winds from the NW by Fri afternoon).
Latest snow reports near Oyasu Onsen:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 29 cm |
| Last snowfall: | 5 Dec 2025 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.7 | Powder days Fresh snow, limited sun, any wind. |
0.1 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Oyasu Onsen at the specific elevation of 521 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Oyasu Onsen. 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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