Sign In with AppleBy using Snow-Forecast, you agree to our Terms & Services.
Don't have an account? Join now
Alternatively, you can now use your Outside account to sign in to any brand in the Outside digital ecosystem, including Snow-Forecast, Surf-Forecast, and Mountain-Forecast.
Gassan Glacier Weather (Next 3 days): The snow forecast for Gassan Glacier is: Light rain (total 2.0mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 4°C on Mon morning, min -12°C on Wed night). Winds increasing (light winds from the WSW on Wed morning, severe gales from the WNW by Wed night).
Gassan Glacier Weather (Days 4-6): A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Sat night, min -12°C on Thu morning). Winds decreasing (gales from the WNW on Thu morning, moderate winds from the WSW by Sat afternoon).
| Resort | Snow Depth | Temp. (°C) | Wind (km/h) | Weather | ||
|---|---|---|---|---|---|---|
| Top Lift: | 0.0 m | 1 |  | |||
| Middle Lift: | 3 | | ||||
| Bottom Lift: | 0.0 m | 4 | |
Latest snow reports near Gassan Glacier:
Monday 1 | Tuesday 2 | Wednesday 3 | Thursday 4 | Friday 5 | Saturday 6 | Sunday 7 | |||||||||||||||
AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  | | |  | |  | | | | |  | | | | |  | | |  | |
some clouds | light snow | light snow | cloudy | light snow | heavy snow | light snow | heavy snow | heavy snow | heavy snow | heavy snow | heavy snow | mod. snow | light snow | light snow | light snow | some clouds | clear | some clouds | light snow | snow shwrs | |
km/h | |||||||||||||||||||||
Snow map |  |  |  |  |  |  |  | ||||||||||||||
— | — | — | — | 1 | 12 | 5 | 14 | 33 | 10 | 14 | 40 | 9 | 3 | 2 | — | — | — | — | 1 | 2 | |
— | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
max °C | 4 | 3 | 0 | 3 | 3 | 0 | -2 | -4 | -7 | -10 | -9 | -7 | -8 | -8 | -6 | -4 | -3 | -2 | -1 | -1 | -2 |
min °C | 4 | 1 | 0 | 2 | 1 | -2 | -3 | -5 | -12 | -12 | -9 | -8 | -8 | -8 | -8 | -5 | -4 | -3 | -1 | -1 | -5 |
-3 | -5 | -7 | -3 | -5 | -9 | -10 | -16 | -26 | -26 | -22 | -20 | -20 | -20 | -20 | -14 | -11 | -10 | -10 | -11 | -15 | |
80 | 97 | 97 | 76 | 89 | 99 | 98 | 98 | 96 | 97 | 97 | 97 | 97 | 96 | 98 | 99 | 76 | 47 | 82 | 98 | 96 | |
2250 | 2050 | 1450 | 1900 | 1850 | 1400 | 1100 | 950 | 100 | 0 | 200 | 300 | 350 | 400 | 450 | 800 | 1000 | 1200 | 1450 | 1450 | 1050 | |
 | 6:37 | — | — | 6:37 | — | — | 6:39 | — | — | 6:39 | — | — | 6:41 | — | — | 6:41 | — | — | 6:43 | — | — |
 | — | 4:19 | — | — | 4:19 | — | — | 4:19 | — | — | 4:17 | — | — | 4:17 | — | — | 4:17 | — | — | 4:17 | — |
Light rain (total 2.0mm) on Mon afternoon. Becoming colder with heavy fall of snow, heaviest during Wed night. Freeze-thaw conditions (max 4°C on Mon morning, min -12°C on Wed night). Winds increasing (light winds from the WSW on Wed morning, severe gales from the WNW by Wed night).
A heavy fall of snow, heaviest during Thu night. Temperatures will be below freezing (max -2°C on Sat night, min -12°C on Thu morning). Winds decreasing (gales from the WNW on Thu morning, moderate winds from the WSW by Sat afternoon).
Latest snow reports near Gassan Glacier:
| Top snow depth: | 0 cm |
|---|---|
| Bottom snow depth: | 0 cm |
| Fresh snowfall depth: | — |
| Last snowfall: | 28 Nov 2025 |
| Snow Alerts | Create Alert |
0.6 | Bluebird Powder days Fresh snow, mostly sunny, light wind. |
|---|---|
4.2 | Powder days Fresh snow, limited sun, any wind. |
0.3 | 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.
Snow Report
Webcams
Ski Resort Guide
Snow History
Snow Alerts
Sign up or Login to access
Upload new photo
Nearest