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Gassan Glacier resort snow
Ski Japan

Gassan Glacier Snow Forecast

38.52° N 140.01° E

Weather Forecast for Gassan Glacier at 1742 m altitude

Issued:
2 am 30 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Moderate rain (total 11.0mm), heaviest on Thu night. Very mild (max 13°C on Wed night, min 3°C on Fri night). Winds increasing (light winds from the WSW on Wed morning, near gales from the WNW by Fri afternoon).

Days 4-6 weather summary:

Moderate rain (total 19.0mm), heaviest on Mon night. Very mild (max 12°C on Mon night, min 3°C on Sat morning). Winds decreasing (strong winds from the W on Sat morning, light winds from the SW by Sun afternoon).

Wednesday
30
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
clear
clear
clear
part cloud
part cloud
light rain
light rain
light rain
rain showers
light rain
light rain
rain showers
cloud
cloud
cloud
cloud
cloud
heavy rain
clear
clear
clear
some clouds
some clouds
light rain
light rain
light rain
rain shwrs
light rain
light rain
rain shwrs
cloudy
cloudy
cloudy
cloudy
cloudy
heavy rain
km/h
10
WSW
10
SSW
20
WSW
25
WSW
25
W
35
WNW
50
W
50
WNW
55
WNW
40
WNW
45
WNW
30
WNW
10
W
10
SW
15
SW
20
S
25
SSE
25
S
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
 mm
—
—
—
—
—
4
3
2
2
3
2
1
—
—
—
—
—
13
max °C
11
11
13
12
11
8
5
4
3
4
4
4
7
8
9
9
10
12
min °C
10
11
13
12
9
4
5
4
3
3
4
4
5
7
9
8
9
10
 chill °C
9
10
11
10
5
-2
-1
-3
-5
-4
-2
-2
3
6
6
5
6
7
Humid %
20
49
61
63
63
92
84
92
77
93
86
80
48
61
53
80
92
93
Freeze m
4150
4200
4350
4400
4050
3600
2700
2400
2650
2400
3000
3200
3350
3500
3350
3450
3800
4000
Sea lvl1000m2000m3000m4000m5000m
1011121110533234467889101212111411665455488891010
Sunrise
5:33
—
—
5:35
—
—
5:35
—
—
5:35
—
—
5:37
—
—
5:37
—
—
Sunset
—
5:24
—
—
5:23
—
—
5:22
—
—
5:20
—
—
5:19
—
—
5:16
—

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Gassan Glacier:

No recent snow reports

No recent snow reports

Gassan Glacier Snow Conditions

Top snow depth:0 cm
Bottom snow depth:0 cm
Fresh snowfall depth:—
Last snowfall: 9 May 2026
Snow AlertsCreate Alert
Other resorts in Japan are reporting: powder (0) / good piste (0)

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Snow History

Week 4 of September has on average:

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.


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