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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 22 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 30.0mm), heaviest during Sat afternoon. Warm (max 20°C on Mon morning, min 16°C on Sat night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 33.0mm), heaviest during Wed night. Warm (max 22°C on Tue morning, min 15°C on Thu night). Wind will be generally light.

Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
mod rain
rain showers
thunderstorm
thunderstorm
rain showers
rain showers
thunderstorm
clear
clear
thunderstorm
rain showers
part cloud
thunderstorm
mod rain
light rain
light rain
mod rain
t-storm
risk
mod. rain
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
rain shwrs
t-storm
risk
clear
clear
t-storm
risk
rain shwrs
some clouds
t-storm
risk
mod. rain
light rain
light rain
mod. rain
km/h
5
WNW
10
WNW
5
WSW
5
WNW
5
WNW
5
WSW
5
NW
5
WSW
5
NW
5
WNW
5
SW
5
S
10
SSW
10
SW
5
SSW
5
SW
5
S
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
5
7
3
4
5
3
1
2
3
4
4
10
3
3
6
max °C
18
18
17
17
17
16
20
19
19
22
22
19
21
20
18
16
16
16
min °C
17
17
16
16
16
16
18
18
17
20
20
19
20
19
17
16
16
15
 chill °C
17
17
16
16
16
16
18
18
17
20
20
19
20
19
17
16
16
14
Humid %
80
82
86
80
89
92
77
76
79
62
64
75
70
72
81
84
85
92
Freeze m
4600
4750
4700
4750
4650
4850
5100
5050
5200
5050
5000
4950
5100
5050
4950
4850
4900
5000
Sea lvl1000m2000m3000m4000m5000m
161615151515171717191917191816151414201917191816222117242218232118171616
Sunrise
5:03
5:05
5:05
5:07
5:07
5:07
Sunset
6:24
6:23
6:22
6:21
6:20
6:19

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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