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Marunuma Kogen resort snow
Ski Japan - Gunma

Marunuma Kogen Snow Forecast

36.81° N 139.34° E
1695m altitude
Issued:
2 am 19 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 37.0mm), heaviest during Thu afternoon. Very mild (max 19°C on Wed morning, min 16°C on Wed night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 30.0mm), heaviest during Sat afternoon. Warm (max 20°C on Mon morning, min 16°C on Sat night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
mod rain
mod rain
rain showers
light rain
thunderstorm
light rain
thunderstorm
thunderstorm
light rain
rain showers
thunderstorm
thunderstorm
some clouds
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
mod. rain
mod. rain
rain shwrs
light rain
t-storm
risk
light rain
t-storm
risk
t-storm
risk
light rain
rain shwrs
t-storm
risk
t-storm
risk
km/h
0
W
0
SSW
5
W
0
NNW
5
WSW
5
SW
5
WSW
5
SW
5
W
10
WNW
5
W
5
SW
5
W
5
W
10
WSW
5
W
5
SW
10
W
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
1
4
12
4
6
6
2
1
6
3
3
5
3
1
6
2
max °C
19
18
17
18
17
17
17
17
17
19
18
16
18
17
17
20
19
18
min °C
17
18
16
18
17
16
16
17
16
17
17
16
17
17
16
19
18
17
 chill °C
17
18
16
18
17
16
16
17
16
17
17
16
17
17
16
19
18
17
Humid %
79
88
91
82
92
94
87
91
88
76
81
92
88
93
93
74
82
88
Freeze m
5050
4850
4900
4850
4950
4950
4800
4950
4850
4850
4800
4800
4850
4950
5000
4900
4850
5100
Sea lvl1000m2000m3000m4000m5000m
171616161615151515171615161615181716211917211917181816211916201917222017
Sunrise
5:01
5:03
5:03
5:03
5:05
5:05
Sunset
6:29
6:28
6:27
6:24
6:23
6:22

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Marunuma Kogen:

No recent snow reports

No recent snow reports

Marunuma Kogen Snow Conditions

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

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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.


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