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Iwakisan Hyakuzawa Weather (Next 3 days): The snow forecast for Iwakisan Hyakuzawa is: Heavy rain (total 31.0mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 8°C on Sun morning, min -2°C on Fri night). Winds decreasing (strong winds from the W on Fri morning, light winds from the WSW by Sat afternoon).
Iwakisan Hyakuzawa Weather (Days 4-6): Mild with heavy rain (total 21.0mm), heaviest during Tue afternoon. Becoming colder with a moderate fall of snow heaviest on Wed morning. Freeze-thaw conditions (max 10°C on Sun night, min -6°C on Wed afternoon). Winds decreasing (strong winds from the SW on Mon morning, light winds from the WSW by Mon night).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 5 |  | ||||
| Middle Lift: | 5 | | ||||
| Bottom Lift: | 5 | |
Latest snow reports near Iwakisan Hyakuzawa:
Friday 28 | Saturday 29 | Sunday 30 | Monday 1 | Tuesday 2 | Wednesday 3 | ||||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  |  | | |  | |  | |  |  |  | | | |
heavy rain | light rain | light snow | light snow | some clouds | cloudy | mod. rain | rain shwrs | rain shwrs | mod. rain | risk thun- der | rain shwrs | snow shwrs | cloudy | mod. rain | mod. snow | mod. snow | light snow | mod. snow | |
km/h | |||||||||||||||||||
Snow map |  |  |  |  |  |  |  | ||||||||||||
— | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 6 | 6 | 3 | 6 | |
13 | 5 | — | — | — | — | 9 | 3 | 1 | 6 | 5 | 2 | — | — | 8 | — | — | — | — | |
max°C | 7 | 5 | 1 | -1 | 2 | 2 | 6 | 8 | 8 | 10 | 10 | 5 | 1 | 4 | 4 | 1 | -4 | -5 | -5 |
min°C | 5 | 5 | 0 | -2 | 1 | 2 | 2 | 8 | 7 | 7 | 8 | 3 | 1 | 2 | 4 | -3 | -5 | -6 | -6 |
0 | -1 | -7 | -10 | -6 | -4 | -3 | 4 | 4 | 4 | 3 | -1 | -4 | -2 | -1 | -10 | -14 | -15 | -14 | |
70 | 88 | 85 | 75 | 73 | 72 | 87 | 81 | 81 | 94 | 86 | 81 | 80 | 79 | 87 | 96 | 94 | 85 | 89 | |
2000 | 1200 | 700 | 350 | 600 | 800 | 1100 | 1550 | 1650 | 1850 | 1950 | 1150 | 700 | 800 | 1100 | 400 | 0 | 0 | 0 | |
 | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — | 6:43 | — | — |
 | — | — | 4:13 | — | — | 4:13 | — | — | 4:12 | — | — | 4:12 | — | — | 4:12 | — | — | 4:10 | — |
Heavy rain (total 31.0mm), heaviest during Thu night. Later becoming colder with a dusting of snow on Fri night. Freeze-thaw conditions (max 8°C on Sun morning, min -2°C on Fri night). Winds decreasing (strong winds from the W on Fri morning, light winds from the WSW by Sat afternoon).
Mild with heavy rain (total 21.0mm), heaviest during Tue afternoon. Becoming colder with a moderate fall of snow heaviest on Wed morning. Freeze-thaw conditions (max 10°C on Sun night, min -6°C on Wed afternoon). Winds decreasing (strong winds from the SW on Mon morning, light winds from the WSW by Mon night).
Latest snow reports near Iwakisan Hyakuzawa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 21 Nov 2025 |
| Snow Alerts | Create Alert |
0.1 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
1.0 | 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 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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