comScore pixel
Gassan Glacier resort snow
Ski Japan

Gassan Glacier Snow Forecast

38.52° N 140.01° E
1742m altitude
Issued:
8 pm 14 Aug 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Light rain (total 6.0mm), mostly falling on Sat night. Very mild (max 17°C on Mon morning, min 15°C on Fri night). Wind will be generally light.

Days 5-7 weather summary:

Light rain (total 3.0mm), mostly falling on Tue afternoon. Very mild (max 19°C on Wed night, min 17°C on Mon night). Wind will be generally light.

Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
thunderstorm
thunderstorm
rain showers
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
rain showers
clear
clear
part cloud
clear
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
cloudy
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
rain shwrs
clear
clear
some clouds
clear
km/h
25
SSE
10
SSE
10
SE
10
SSE
10
S
10
SE
15
SSE
5
SSE
10
SSW
10
S
5
SW
10
S
5
S
5
SSE
10
SE
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
1
1
2
2
1
max °C
16
16
16
16
16
16
16
17
16
18
18
17
18
18
18
19
min °C
15
15
16
16
15
15
16
16
16
17
17
17
18
18
18
18
 chill °C
14
14
16
16
15
14
16
16
16
17
17
17
18
18
18
18
Humid %
92
89
94
84
71
82
65
59
82
72
61
81
62
66
88
74
Freeze m
4750
4700
4800
4800
4850
5000
5100
5050
5100
5100
4900
5100
5050
5150
5200
5050
Sea lvl1000m2000m3000m4000m5000m
1515151515151616151616161717161716171716171716171717191718201918
Sunrise
4:52
4:54
4:54
4:56
4:56
Sunset
6:35
6:32
6:31
6:30
6:29

Days 7-16 weather summary:

Interested in the 16-day Forecast? Unlock the full forecast and many more features by becoming a Pro member.

Go pro and carve into:

  • Hourly & 16-day snow forecasts
  • Fast, ad-free browsing
  • Unlock full access on app & web
  • Exclusive member discounts
  • 20+ years of snow history
  • Snow hindcasts

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)

Snow-Forecast Partner Offers

Snow History

Week 3 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.


Snow-Forecast Partner Offers


Map placeholder