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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:
8 am 15 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 86.0mm), heaviest during Wed night. Very mild (max 15°C on Tue morning, min 9°C on Thu night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 20.0mm), heaviest during Sat night. Very mild (max 15°C on Sun afternoon, min 10°C on Fri morning). Wind will be generally light.

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
mod rain
thunderstorm
mod rain
mod rain
mod rain
heavy rain
light rain
light rain
part cloud
part cloud
cloud
part cloud
light rain
cloud
heavy rain
light rain
light rain
light rain
mod. rain
t-storm
risk
mod. rain
mod. rain
mod. rain
heavy rain
light rain
light rain
some clouds
some clouds
cloudy
some clouds
light rain
cloudy
heavy rain
light rain
light rain
light rain
km/h
10
SSW
5
W
10
SW
5
SSE
5
SSE
5
NNW
5
WNW
0
NE
5
S
5
SE
5
S
5
SSE
5
SSE
5
SE
5
SE
0
E
0
SSE
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
6
5
9
8
10
44
2
2
1
12
2
1
4
max °C
15
15
14
13
13
12
12
11
10
13
13
12
13
13
13
14
15
14
min °C
15
14
13
13
12
11
11
11
9
10
10
10
13
13
13
14
15
14
 chill °C
15
14
13
13
12
11
11
11
9
10
10
10
13
13
13
14
15
14
Humid %
95
97
98
99
99
98
98
93
91
84
78
81
91
97
95
90
88
90
Freeze m
4550
4550
4500
4300
4300
4100
4000
4100
4400
4450
4600
4750
4550
4500
4500
4700
4800
4950
Sea lvl1000m2000m3000m4000m5000m
13131312111110109101111121212131413161615141413131210141310151413151615
Sunrise
5:24
5:24
5:24
5:26
5:26
5:28
Sunset
5:51
5:49
5:47
5:45
5:45
5:43

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 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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