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Gassan Glacier Weather (Next 3 days): The snow forecast for Gassan Glacier is: Mild at first with light rain (total 4.0mm) on Sun afternoon followed by colder weather and light fall of snow, heaviest on Sun afternoon. Freeze-thaw conditions (max 7°C on Sun morning, min -10°C on Mon morning). Winds decreasing (gales from the WNW on Sun night, light winds from the WNW by Mon night).
Gassan Glacier Weather (Days 4-6): Moderate rain (total 13.0mm) on Wed afternoon. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -12°C on Thu night). Winds increasing (light winds from the W on Tue morning, strong winds from the SSW by Wed afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0.0 m | 1 |  | |||
| Middle Lift: | 3 | | ||||
| Bottom Lift: | 0.0 m | 1 | |
Latest snow reports near Gassan Glacier:
Saturday 20 | Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | |||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | |  | | | | |  |  | | |  | |
light rain | some clouds | some clouds | cloudy | light snow | mod. snow | light snow | light snow | snow shwrs | some clouds | some clouds | some clouds | light snow | heavy rain | light snow | light snow | light snow | heavy snow | |
km/h | ||||||||||||||||||
Snow map |  |  |  |  |  |  | ||||||||||||
— | — | — | — | 5 | 7 | 1 | 1 | 1 | — | — | — | 2 | — | 3 | 2 | 1 | 25 | |
1 | — | — | — | 3 | — | — | — | — | — | — | — | — | 11 | 2 | — | — | — | |
max °C | 4 | 6 | 6 | 7 | 3 | -4 | -10 | -10 | -7 | -2 | 0 | 2 | 2 | 3 | 2 | -4 | -6 | -5 |
min °C | 3 | 5 | 5 | 5 | -1 | -9 | -10 | -10 | -9 | -4 | -1 | 1 | 1 | 3 | -3 | -5 | -6 | -12 |
-4 | 0 | 0 | -1 | -9 | -22 | -23 | -22 | -19 | -7 | -5 | -5 | -5 | -4 | -11 | -13 | -14 | -23 | |
91 | 71 | 66 | 57 | 98 | 91 | 81 | 83 | 87 | 18 | 14 | 56 | 88 | 93 | 92 | 80 | 81 | 97 | |
2200 | 2400 | 2600 | 2650 | 2400 | 900 | 300 | 350 | 250 | 600 | 1400 | 2000 | 2050 | 2300 | 2000 | 800 | 550 | 650 | |
 | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 4:21 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:22 | — | — | 4:23 | — |
Mild at first with light rain (total 4.0mm) on Sun afternoon followed by colder weather and light fall of snow, heaviest on Sun afternoon. Freeze-thaw conditions (max 7°C on Sun morning, min -10°C on Mon morning). Winds decreasing (gales from the WNW on Sun night, light winds from the WNW by Mon night).
Moderate rain (total 13.0mm) on Wed afternoon. Becoming colder with heavy fall of snow, heaviest during Thu night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -12°C on Thu night). Winds increasing (light winds from the W on Tue morning, strong winds from the SSW by Wed afternoon).
Latest snow reports near Gassan Glacier:
| Top snow depth: | 0 cm |
|---|---|
| Bottom snow depth: | 0 cm |
| Fresh snowfall depth: | 22 cm |
| Last snowfall: | 18 Dec 2025 |
| Snow Alerts | Create Alert |
0.5 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
5.2 | Powder days Fresh snow, limited sun, any wind. |
0.6 | Bluebird days Average snow, mostly sunny, light wind. |
The above table gives the weather forecast for Gassan Glacier at the specific elevation of 1742 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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