Next 3 days weather summary:Heavy rain (total 27.0mm), heaviest during Sun afternoon. Very mild (max 19°C on Mon afternoon, min 15°C on Sat night). Wind will be generally light. | Days 4-6 weather summary:Heavy rain (total 96.0mm), heaviest during Wed night. Warm (max 22°C on Wed morning, min 14°C on Thu night). Winds increasing (light winds from the SW on Tue night, fresh winds from the W by Wed night). | |||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  | |  | | | |  | | |  | |  |  | | | |
rain shwrs | t-storm risk | rain shwrs | light rain | t-storm risk | clear | rain shwrs | rain shwrs | clear | clear | clear | clear | some clouds | t-storm risk | heavy rain | mod. rain | t-storm risk | heavy rain | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
 cm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
mm | 3 | 5 | 2 | 3 | 12 | — | 1 | 1 | — | — | — | — | — | 4 | 39 | 6 | 11 | 36 |
max °C | 17 | 17 | 16 | 17 | 17 | 15 | 18 | 19 | 16 | 20 | 20 | 18 | 22 | 21 | 16 | 16 | 15 | 14 |
min °C | 17 | 16 | 15 | 17 | 15 | 15 | 18 | 17 | 16 | 18 | 18 | 17 | 21 | 18 | 15 | 16 | 15 | 14 |
chill °C | 17 | 16 | 15 | 17 | 15 | 15 | 18 | 17 | 15 | 18 | 18 | 17 | 21 | 17 | 13 | 15 | 14 | 14 |
Humid % | 92 | 90 | 84 | 81 | 94 | 84 | 94 | 82 | 79 | 87 | 77 | 62 | 61 | 77 | 93 | 95 | 91 | 96 |
Freeze m | 4500 | 4650 | 4550 | 4700 | 4650 | 5000 | 5100 | 5100 | 5050 | 5050 | 4900 | 4900 | 4950 | 4950 | 4800 | 4750 | 4650 | 4700 |
 | 4:58 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:03 | — | — | 5:03 | — | — |
 | — | 6:24 | — | — | 6:23 | — | — | 6:22 | — | — | 6:21 | — | — | 6:20 | — | — | 6:17 | — |
SnowProGo pro and carve into:
Avalanche information: Japan Avalanche Network
Latest snow reports near Gassan Glacier:
| Top snow depth: | 0 cm |
|---|---|
| Bottom snow depth: | 0 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 9 May 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 Gassan Glacier at the specific elevation of 1500 m. Our sophisticated weather models allow us to provide snow forecasts for the top, middle and bottom ski stations of Gassan Glacier. 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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