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Marunuma Kogen resort snow
Lat Long: 36.81° N 139.34° E
Ski Japan - Gunma

Marunuma Kogen Snow Forecast

Weather Forecast for Marunuma Kogen at 1695m altitude

Issued: 8 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Heavy rain (total 46.0mm), heaviest during Tue night. Very mild (max 19°C on Mon morning, min 12°C on Mon night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 53.0mm), heaviest during Fri night. Very mild (max 18°C on Sat morning, min 14°C on Wed night). Wind will be generally light.

Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
rain showers
rain showers
part cloud
light rain
heavy rain
heavy rain
rain showers
rain showers
rain showers
thunderstorm
thunderstorm
light rain
light rain
mod rain
heavy rain
rain shwrs
rain shwrs
rain shwrs
some clouds
light rain
heavy rain
heavy rain
rain shwrs
rain shwrs
rain shwrs
t-storm
risk
t-storm
risk
light rain
light rain
mod. rain
heavy rain
km/h
5
N
5
NNW
10
NW
10
NNW
10
NNE
20
NNW
15
SE
15
SSE
15
SE
15
SE
15
ESE
10
ESE
5
E
5
ENE
10
NE
10
E
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
4
1
2
1
18
17
2
1
2
3
3
1
3
9
15
max °C
17
19
19
14
16
13
14
16
17
14
16
17
16
16
15
16
min °C
15
17
16
12
15
13
12
14
15
14
16
16
15
16
15
15
 chill °C
15
17
16
11
14
11
10
13
14
13
16
16
15
16
14
14
Humid %
86
74
52
65
51
95
99
83
66
81
88
83
87
89
94
97
Freeze m
4750
4700
4550
4550
4450
4700
4550
4300
4400
4450
4500
4700
4850
4700
4750
4800
Sea lvl1000m2000m3000m4000m5000m
1516161214121213141314151414141416212012171314181814181816181616
Sunrise
4:54
4:54
4:56
4:56
4:58
Sunset
6:39
6:38
6:37
6:37
6:36

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 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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