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 1390m altitude

Issued:
2 pm 05 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 201.0mm), heaviest during Mon morning. Very mild (max 19°C on Tue morning, min 12°C on Sat night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 105.0mm), heaviest during Wed afternoon. Very mild (max 19°C on Tue afternoon, min 10°C on Thu night). Wind will be generally light.

Sat
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
rain showers
light rain
light rain
heavy rain
heavy rain
heavy rain
mod rain
light rain
light rain
heavy rain
light rain
heavy rain
heavy rain
light rain
light rain
heavy rain
rain shwrs
rain shwrs
light rain
light rain
heavy rain
heavy rain
heavy rain
mod. rain
light rain
light rain
heavy rain
light rain
heavy rain
heavy rain
light rain
light rain
heavy rain
km/h
5
SSW
5
SSE
10
SE
10
SE
10
ESE
15
ESE
10
S
5
NW
0
N
5
SSW
5
S
5
N
10
NNW
5
N
5
ENE
0
S
5
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
3
1
2
39
99
45
9
1
2
20
5
18
19
3
3
14
max °C
17
13
14
13
14
17
17
17
19
19
17
17
15
14
13
13
12
min °C
14
12
13
12
12
15
17
15
17
17
17
17
14
13
13
13
10
 chill °C
14
12
12
11
11
14
17
15
17
17
17
17
14
13
13
13
9
Humid %
77
98
91
85
97
99
99
97
81
90
99
98
97
96
99
99
99
Freeze m
4200
4550
4850
4650
5000
5300
5300
5250
5100
5150
5150
5250
5200
5050
4900
4850
5000
Sea lvl1000m2000m3000m4000m5000m
13121211131516151516151514131111101613141313161716181817171514131311
Sunrise
5:16
5:16
5:18
5:18
5:20
Sunset
6:06
6:04
6:02
6:00
6:00
5:58

Days 7-16 weather summary:

Interested in the 16-day Forecast? Unlock the full forecast and many more features by becoming a Pro member.

Go pro and carve into:

  • Hourly & 16-day snow forecasts
  • Fast, ad-free browsing
  • Unlock full access on app & web
  • Exclusive member discounts
  • 20+ years of snow history
  • Snow hindcasts

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 1 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