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Iwakisan Hyakuzawa Weather (Next 3 days): The snow forecast for Iwakisan Hyakuzawa is: Heavy rain (total 27.0mm), heaviest during Sun morning. Later becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 9°C on Sat night, min -5°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Tue morning).
Iwakisan Hyakuzawa Weather (Days 4-6): Moderate rain (total 17.0mm), heaviest on Wed afternoon giving way to a moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 5°C on Wed afternoon, min -8°C on Fri afternoon). Winds increasing (calm on Thu night, fresh winds from the W by Fri afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 8 |  | ||||
| Middle Lift: | 9 | | ||||
| Bottom Lift: | 9 | |
Latest snow reports near Iwakisan Hyakuzawa:
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
|  |  |  | |  |  |  |  | |  |  |  | | |  | |
light rain | heavy rain | light snow | light snow | light snow | cloudy | clear | clear | some clouds | light snow | light rain | mod. rain | mod. rain | some clouds | cloudy | mod. snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
— | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | 7 | |
5 | 20 | 2 | — | — | — | — | — | — | — | 5 | 6 | 6 | — | — | — | |
max °C | 9 | 9 | 4 | 0 | -4 | -4 | -4 | 0 | 0 | 2 | 4 | 5 | 5 | -1 | -1 | -2 |
min °C | 8 | 7 | 1 | -5 | -4 | -4 | -4 | -2 | -1 | -1 | 2 | 4 | 1 | -1 | -2 | -4 |
4 | 3 | -4 | -13 | -11 | -10 | -7 | -2 | -4 | -4 | -3 | -1 | -3 | -6 | -5 | -11 | |
92 | 94 | 90 | 83 | 76 | 69 | 76 | 52 | 44 | 44 | 90 | 96 | 98 | 70 | 66 | 93 | |
2400 | 2350 | 1100 | 450 | 0 | 0 | 0 | 0 | 600 | 1550 | 1550 | 1850 | 1650 | 500 | 400 | 150 | |
 | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 7:00 | — | — |
 | — | — | 4:14 | — | — | 4:14 | — | — | 4:15 | — | — | 4:15 | — | — | 4:15 | — |
Heavy rain (total 27.0mm), heaviest during Sun morning. Later becoming colder with a dusting of snow on Sun night. Freeze-thaw conditions (max 9°C on Sat night, min -5°C on Sun night). Winds decreasing (fresh winds from the SW on Sat night, calm by Tue morning).
Moderate rain (total 17.0mm), heaviest on Wed afternoon giving way to a moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 5°C on Wed afternoon, min -8°C on Fri afternoon). Winds increasing (calm on Thu night, fresh winds from the W by Fri afternoon).
Latest snow reports near Iwakisan Hyakuzawa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 17 Dec 2025 |
| Snow Alerts | Create Alert |
0.4 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
3.7 | 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 Iwakisan Hyakuzawa at the specific elevation of 565 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Iwakisan Hyakuzawa. 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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