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Marunuma Kogen resort snow
Ski Japan - Gunma

Marunuma Kogen Snow Forecast

36.81° N 139.34° E

Weather Forecast for Marunuma Kogen at 1695m altitude

Issued:
2 am 31 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 27.0mm), heaviest during Wed night. Warm (max 20°C on Wed morning, min 15°C on Mon night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 115.0mm), heaviest during Fri morning. Very mild (max 16°C on Thu morning, min 10°C on Sat night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
light rain
cloud
light rain
rain showers
part cloud
rain showers
thunderstorm
heavy rain
light rain
light rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
light rain
rain showers
rain shwrs
light rain
cloudy
light rain
rain shwrs
some clouds
rain shwrs
t-storm
risk
heavy rain
light rain
light rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
light rain
rain shwrs
km/h
5
SSW
5
SW
5
SSW
5
SSW
5
SW
10
SW
5
WSW
5
WSW
10
SW
15
SW
10
WSW
10
SW
5
WSW
10
N
5
SSW
5
ENE
0
SE
5
SE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
1
3
1
2
1
6
13
1
3
23
30
25
29
1
2
1
max °C
17
16
15
17
18
17
20
19
18
16
16
15
13
13
12
14
14
12
min °C
17
16
15
16
16
16
18
18
17
16
15
14
13
12
11
12
13
10
 chill °C
17
16
15
16
16
16
18
18
17
15
15
13
13
12
11
12
13
10
Humid %
90
94
97
93
86
93
79
81
79
88
87
99
99
95
98
83
78
85
Freeze m
5050
5200
5150
5100
5150
5100
4950
4900
4850
4950
4900
4750
4600
4500
4650
4700
4650
4800
Sea lvl1000m2000m3000m4000m5000m
151514151615171716151513121111121311191816191916222017171715141412151411
Sunrise
5:11
5:11
5:13
5:13
5:15
5:16
Sunset
6:13
6:12
6:09
6:08
6:07
6:06

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 4 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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