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Gassan Glacier Weather (Next 3 days): The snow forecast for Gassan Glacier is: A heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 1°C on Fri afternoon, min -9°C on Tue night). Winds decreasing (near gales from the WNW on Wed night, moderate winds from the WNW by Fri morning).
Gassan Glacier Weather (Days 4-6): Mild with light rain (total 7.0mm) on Sun afternoon Becoming colder with a light covering of snow, mostly falling on Sun night. Freeze-thaw conditions (max 4°C on Sat night, min -6°C on Mon morning). Winds decreasing (near gales from the WSW on Fri night, light winds from the SW by Mon afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0.0 m | -9 |  | |||
| Middle Lift: | -8 | | ||||
| Bottom Lift: | 0.0 m | -7 | |
Latest snow reports near Gassan Glacier:
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | Sunday 21 | ||||||||||||
night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  | | | | |  |  | | | | | |  |  | | |
mod. snow | light snow | light snow | mod. snow | light snow | light snow | clear | clear | clear | clear | light snow | clear | clear | light rain | mod. rain | mod. snow | |
km/h | ||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||
9 | 1 | 4 | 6 | 1 | — | — | — | — | — | — | — | — | — | — | 5 | |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 6 | — | |
max °C | -9 | -7 | -6 | -8 | -9 | -9 | -5 | -1 | 1 | 2 | 2 | 2 | 4 | 4 | 3 | 0 |
min °C | -9 | -8 | -6 | -9 | -9 | -9 | -9 | -3 | 0 | 2 | 1 | 2 | 3 | 3 | 3 | -5 |
-20 | -18 | -16 | -21 | -20 | -20 | -19 | -10 | -7 | -5 | -7 | -5 | -4 | -4 | -3 | -13 | |
78 | 91 | 98 | 79 | 68 | 71 | 61 | 55 | 15 | 16 | 97 | 71 | 72 | 81 | 99 | 98 | |
550 | 650 | 900 | 550 | 400 | 500 | 0 | 1100 | 2000 | 2400 | 2100 | 2400 | 2600 | 2650 | 2550 | 1200 | |
 | — | 6:50 | — | — | 6:50 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — |
 | — | — | 4:20 | — | — | 4:20 | — | — | 4:21 | — | — | 4:21 | — | — | 4:22 | — |
A heavy fall of snow, heaviest during Tue night. Freeze-thaw conditions (max 1°C on Fri afternoon, min -9°C on Tue night). Winds decreasing (near gales from the WNW on Wed night, moderate winds from the WNW by Fri morning).
Mild with light rain (total 7.0mm) on Sun afternoon Becoming colder with a light covering of snow, mostly falling on Sun night. Freeze-thaw conditions (max 4°C on Sat night, min -6°C on Mon morning). Winds decreasing (near gales from the WSW on Fri night, light winds from the SW by Mon afternoon).
Latest snow reports near Gassan Glacier:
| Top snow depth: | 0 cm |
|---|---|
| Bottom snow depth: | 0 cm |
| Fresh snowfall depth: | 51 cm |
| Last snowfall: | 15 Dec 2025 |
| Snow Alerts | Create Alert |
0.8 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
4.9 | Powder days Fresh snow, limited sun, any wind. |
0.9 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Gassan Glacier at the specific elevation of 1984 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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