Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: Mild with heavy rain (total 23.0mm), heaviest during Thu night. Becoming colder with a moderate fall of snow heaviest on Fri morning. Freeze-thaw conditions (max 4°C on Thu night, min -5°C on Sat night). Winds decreasing (fresh winds from the W on Thu night, light winds from the WSW by Sat morning).
Oyasu Onsen Weather (Days 4-6): A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be below freezing (max -1°C on Mon morning, min -9°C on Tue night). Winds increasing (light winds from the W on Mon afternoon, fresh winds from the WNW by Tue afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -3 |  | ||||
| Bottom Lift: | -4 | |
Latest snow reports near Oyasu Onsen:
Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 | |  |  | | | | | | | | | | | | | |  | |
light snow | light snow | light snow | mod. snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | light snow | mod. snow | mod. snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
2 | 2 | — | 5 | 2 | 1 | 2 | 1 | 3 | 1 | — | 1 | 1 | 1 | 3 | 4 | 5 | 10 | |
— | — | 23 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 1 | 2 | 4 | 0 | -1 | -3 | 0 | 0 | -3 | -3 | -3 | -5 | -1 | -1 | -2 | -3 | -6 | -8 |
min °C | -1 | 2 | 1 | 0 | -3 | -3 | -1 | -1 | -5 | -4 | -5 | -6 | -3 | -2 | -3 | -3 | -7 | -9 |
-6 | -3 | -5 | -5 | -10 | -10 | -3 | -7 | -13 | -12 | -11 | -11 | -8 | -4 | -9 | -9 | -16 | -19 | |
94 | 96 | 95 | 98 | 90 | 91 | 94 | 99 | 94 | 92 | 89 | 94 | 93 | 94 | 97 | 95 | 94 | 94 | |
400 | 850 | 1100 | 550 | 350 | 0 | 350 | 550 | 0 | 0 | 0 | 0 | 0 | 400 | 0 | 150 | 0 | 0 | |
 | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | 4:37 | — | — | 4:38 | — | — | 4:39 | — | — | 4:40 | — | — | 4:42 | — | — | 4:43 | — |
Mild with heavy rain (total 23.0mm), heaviest during Thu night. Becoming colder with a moderate fall of snow heaviest on Fri morning. Freeze-thaw conditions (max 4°C on Thu night, min -5°C on Sat night). Winds decreasing (fresh winds from the W on Thu night, light winds from the WSW by Sat morning).
A heavy fall of snow, heaviest during Tue afternoon. Temperatures will be below freezing (max -1°C on Mon morning, min -9°C on Tue night). Winds increasing (light winds from the W on Mon afternoon, fresh winds from the WNW by Tue afternoon).
Latest snow reports near Oyasu Onsen:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 34 cm |
| Last snowfall: | 14 Jan 2026 |
| Snow Alerts | Create Alert |
1.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.9 | Powder days Fresh snow, limited sun, any wind. |
0.3 | 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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