Mon 19 | Tuesday 20 | Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  |  |  | | |  |  | | | | | | |
rain shwrs | some clouds | cloudy | some clouds | rain shwrs | heavy rain | mod. rain | mod. rain | rain shwrs | rain shwrs | clear | clear | clear | some clouds | clear | clear | rain shwrs | |
km/h | |||||||||||||||||
Snow map |  |  |  |  |  |  | |||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 1 | — | — | — | 5 | 18 | 9 | 6 | 2 | 1 | — | — | — | — | — | — | 2 |
max °C | 15 | 12 | 13 | 14 | 13 | 18 | 15 | 10 | 5 | 6 | 4 | 11 | 11 | 10 | 15 | 15 | 12 |
min °C | 13 | 12 | 13 | 12 | 11 | 16 | 12 | 5 | 5 | 4 | 4 | 8 | 10 | 9 | 13 | 13 | 11 |
chill °C | 11 | 10 | 13 | 12 | 10 | 14 | 8 | -1 | -1 | -1 | 0 | 6 | 9 | 9 | 12 | 12 | 9 |
Humid % | 75 | 72 | 57 | 55 | 78 | 95 | 89 | 83 | 69 | 56 | 73 | 58 | 53 | 54 | 33 | 65 | 87 |
Freeze m | 3750 | 3650 | 3350 | 3450 | 3450 | 3800 | 3650 | 1700 | 1100 | 1150 | 1200 | 2750 | 3150 | 3400 | 3550 | 3750 | 3550 |
 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | 4:52 | — | — | 4:52 | — | — | 4:50 | — | — | 4:49 | — | — | 4:47 | — | — | 4:45 | — |
Next 3 days weather summary:Heavy rain (total 41.0mm), heaviest during Wed morning. Very mild (max 18°C on Wed morning, min 5°C on Wed night). Winds increasing (light winds from the W on Tue morning, strong winds from the SW by Wed morning). | Days 4-6 weather summary:Light rain (total 3.0mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat morning, min 4°C on Thu afternoon). Winds decreasing (fresh winds from the WNW on Thu afternoon, calm by Fri night). | ||||||||||||||||
SnowPro
Hourly & 16-day forecastsView past weatherFast, ad-free browsingSnow hindcasts & HistoryAvalanche information: Japan Avalanche Network
Latest snow reports near Iwakisan Hyakuzawa:
| Top snow depth: | — |
|---|---|
| Bottom snow depth: | — |
| Fresh snowfall depth: | — |
| Last snowfall: | 11 Apr 2026 |
| Snow Alerts | Create Alert |
0.0 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
0.0 | 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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