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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 1500m altitude

Issued:
2 pm 19 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 63.0mm), heaviest during Mon morning. Very mild (max 16°C on Sat afternoon, min 13°C on Tue morning). Wind will be generally light.

Days 4-6 weather summary:

Light rain (total 6.0mm), mostly falling on Tue afternoon. Very mild (max 15°C on Thu morning, min 7°C on Tue night). Winds decreasing (fresh winds from the NW on Tue afternoon, calm by Wed morning).

Sat
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
heavy rain
mod rain
light rain
rain showers
heavy rain
mod rain
mod rain
light rain
light rain
rain showers
clear
part cloud
cloud
clear
part cloud
part cloud
some clouds
heavy rain
mod. rain
light rain
rain shwrs
heavy rain
mod. rain
mod. rain
light rain
light rain
rain shwrs
clear
some clouds
cloudy
clear
some clouds
some clouds
km/h
15
SSE
10
S
5
ESE
15
SSE
15
SSE
10
S
0
ESE
15
E
25
N
35
NW
20
NW
10
NNW
5
E
5
E
10
ESE
10
SSE
15
S
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
13
10
3
1
18
9
6
3
2
2
max °C
16
15
15
15
15
14
15
15
13
11
9
13
13
12
15
15
14
min °C
15
14
14
14
14
14
15
14
13
10
7
11
11
12
15
13
13
 chill °C
14
14
14
13
13
13
15
13
11
7
3
10
11
12
15
12
11
Humid %
90
89
95
94
79
99
95
98
99
97
93
50
67
31
33
39
30
Freeze m
4700
4550
4450
4700
4900
4950
5150
5050
4700
4550
4600
4300
4100
3900
3750
4000
3950
Sea lvl1000m2000m3000m4000m5000m
141413131414141412119101112121213161515151514151513118121212151414
Sunrise
5:24
5:26
5:26
5:26
5:28
Sunset
5:43
5:40
5:38
5:37
5:36
5:35

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:0cm
Bottom snow depth:0cm
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 3 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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