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Gassan Glacier resort snow
Lat Long: 38.52° N 140.01° E
Ski Japan

Gassan Glacier Snow Forecast

Weather Forecast for Gassan Glacier at 1500m altitude

Issued: 2 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 30.0mm), heaviest during Sat night. Warm (max 22°C on Sat morning, min 13°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the NNE by Mon night).

Days 4-6 weather summary:

Heavy rain (total 22.0mm), heaviest during Tue afternoon. Very mild (max 18°C on Thu morning, min 13°C on Tue morning). Winds decreasing (severe gales from the ENE on Tue afternoon, moderate winds from the SE by Thu night).

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
rain showers
light rain
mod rain
heavy rain
cloud
light rain
cloud
part cloud
thunderstorm
part cloud
t-storm
risk
t-storm
risk
t-storm
risk
t-storm
risk
t-storm
risk
clear
t-storm
risk
t-storm
risk
rain shwrs
light rain
mod. rain
heavy rain
cloudy
light rain
cloudy
some clouds
t-storm
risk
some clouds
km/h
5
NE
10
ENE
0
SE
0
SSE
0
E
5
SSW
0
WNW
5
NE
10
N
30
NNW
40
NE
75
ESE
65
SE
45
ESE
50
ESE
40
SE
35
ESE
40
SE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
6
9
3
4
1
2
2
2
7
11
1
1
max °C
22
21
18
19
18
16
16
16
14
13
14
14
16
16
15
18
17
16
min °C
21
19
17
18
17
16
16
15
13
13
13
13
15
15
15
16
16
16
 chill °C
21
19
17
18
17
16
16
15
12
10
9
9
12
13
12
14
14
14
Humid %
67
76
70
75
93
79
96
95
87
97
96
98
85
94
91
90
96
91
Freeze m
4900
4900
4800
4650
4700
4550
4350
4400
4300
4800
4550
4500
4600
4550
4850
5100
5100
4850
Sea lvl1000m2000m3000m4000m5000m
181717161615131413121213131415151515222018191816161614131414161615171716
Sunrise
4:47
4:48
4:48
4:48
4:50
4:50
Sunset
6:43
6:42
6:40
6:39
6:37
6:37

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 2 of August 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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