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Oyasu Onsen Weather (Next 3 days): The snow forecast for Oyasu Onsen is: A moderate fall of snow, heaviest on Tue afternoon. Freeze-thaw conditions (max 2°C on Tue morning, min -3°C on Wed night). Winds decreasing (fresh winds from the WNW on Mon afternoon, light winds from the WNW by Wed morning).
Oyasu Onsen Weather (Days 4-6): Mostly dry. Freeze-thaw conditions (max 9°C on Sun morning, min -4°C on Thu night). Wind will be generally light.
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | -2 |  | ||||
| Bottom Lift: | 0 | |
Latest snow reports near Oyasu Onsen:
Mon 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | ||||||||||||
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 | snow shwrs | clear | some clouds | some clouds | clear | clear | some clouds | some clouds | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
2 | — | 1 | 6 | 4 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | -1 | -1 | 2 | 2 | 1 | 0 | 0 | -1 | -1 | 0 | -2 | 4 | 3 | 4 | 7 | 6 | 8 |
min °C | -2 | -2 | 1 | 1 | -1 | -1 | -1 | -3 | -1 | -3 | -4 | 2 | 1 | 1 | 6 | 6 | 7 |
-9 | -9 | -4 | -3 | -5 | -5 | -5 | -9 | -6 | -6 | -7 | 2 | -2 | -2 | 3 | 4 | 5 | |
96 | 88 | 94 | 100 | 98 | 95 | 98 | 97 | 89 | 83 | 82 | 81 | 82 | 69 | 68 | 83 | 67 | |
400 | 200 | 600 | 850 | 500 | 350 | 500 | 300 | 350 | 500 | 0 | 1000 | 1850 | 2600 | 2350 | 2450 | 2500 | |
 | — | — | 6:48 | — | — | 6:48 | — | — | 6:50 | — | — | 6:50 | — | — | 6:50 | — | — |
 | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — | — | 4:16 | — | — | 4:16 | — |
A moderate fall of snow, heaviest on Tue afternoon. Freeze-thaw conditions (max 2°C on Tue morning, min -3°C on Wed night). Winds decreasing (fresh winds from the WNW on Mon afternoon, light winds from the WNW by Wed morning).
Mostly dry. Freeze-thaw conditions (max 9°C on Sun morning, min -4°C on Thu night). Wind will be generally light.
Latest snow reports near Oyasu Onsen:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | 8 cm |
| Last snowfall: | 14 Dec 2025 |
| Snow Alerts | Create Alert |
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
2.6 | Powder days Fresh snow, limited sun, any wind. |
0.4 | 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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