comScore pixel
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 21 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 50.0mm), heaviest during Mon morning. Very mild (max 17°C on Mon morning, min 12°C on Tue night). Wind will be generally light.

Days 4-6 weather summary:

Moderate rain (total 14.0mm), heaviest on Fri night. Very mild (max 15°C on Thu afternoon, min 9°C on Sat night). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
heavy rain
light rain
mod rain
rain showers
rain showers
rain showers
cloud
light rain
light rain
rain showers
rain showers
part cloud
part cloud
light rain
light rain
light rain
rain showers
light rain
heavy rain
light rain
mod. rain
rain shwrs
rain shwrs
rain shwrs
cloudy
light rain
light rain
rain shwrs
rain shwrs
some clouds
some clouds
light rain
light rain
light rain
rain shwrs
light rain
km/h
5
ESE
10
E
20
N
10
NNW
5
NNW
10
SW
10
SW
5
SW
10
SSW
5
NW
5
WNW
5
SW
5
WSW
5
SW
5
SSW
5
NNW
5
W
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
30
5
6
1
1
2
1
4
2
2
1
2
3
2
2
max °C
17
17
16
17
16
13
13
13
12
14
15
13
14
14
12
10
10
9
min °C
16
16
15
14
13
12
12
12
12
13
13
12
13
12
11
10
10
9
 chill °C
16
16
14
13
13
11
11
11
11
13
13
12
13
12
11
10
9
8
Humid %
98
96
92
79
57
82
93
90
99
91
74
66
70
74
94
89
92
95
Freeze m
5300
5200
5300
5250
4950
4850
4600
4600
4500
4350
4300
4200
4100
4100
3950
3500
3600
3800
Sea lvl1000m2000m3000m4000m5000m
151515141412121211121211121210898171716171613141413161511161412121210
Sunrise
5:28
5:28
5:30
5:31
5:31
5:33
Sunset
5:42
5:39
5:38
5:37
5:36
5:34

Days 7-16 weather summary:

Interested in the 16-day Forecast? Unlock the full forecast and many more features by becoming a Pro member.
  • Circle CheckHourly & 16-day forecasts
  • Circle CheckView past weather
  • Circle CheckFast, ad-free browsing
  • Circle CheckSnow hindcasts & History
Unlocks app & website

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)

Snow-Forecast Partner Offers

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.


Snow-Forecast Partner Offers


Map placeholder