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Ski Japan - Gunma

Manza Onsen Snow Forecast

36.64° N 138.51° E

Weather Forecast for Manza Onsen at 1820m altitude

Issued:
8 pm 10 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Moderate rain (total 18.0mm), heaviest on Fri morning. Very mild (max 17°C on Sun morning, min 12°C on Thu night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 22.0mm), heaviest during Mon afternoon. Very mild (max 19°C on Mon morning, min 13°C on Mon night). Wind will be generally light.

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
mod rain
rain showers
part cloud
light rain
light rain
part cloud
rain showers
thunderstorm
rain showers
clear
thunderstorm
light rain
light rain
light rain
rain showers
light rain
mod. rain
rain shwrs
some clouds
light rain
light rain
some clouds
rain shwrs
t-storm
risk
rain shwrs
clear
t-storm
risk
light rain
light rain
light rain
rain shwrs
km/h
10
SW
10
W
10
W
10
SW
5
SW
5
SSE
10
S
10
SW
5
SSW
10
SSW
10
SSW
5
SSE
10
SW
5
SW
5
SW
10
SW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
6
1
2
2
1
4
1
5
4
1
3
1
max °C
13
12
13
13
14
14
14
17
16
15
19
17
16
14
14
13
min °C
12
12
13
13
14
14
14
15
15
15
16
16
13
14
13
13
 chill °C
11
11
12
13
14
14
14
15
15
15
16
16
13
14
13
13
Humid %
92
99
96
94
92
97
93
92
96
92
73
80
91
88
93
96
Freeze m
4800
4850
4750
4800
4750
4750
4750
4750
4800
4850
4800
4700
4750
4700
4550
4550
Sea lvl1000m2000m3000m4000m5000m
1212131313131315151416161413131312121413151513171615201714151413
Sunrise
5:24
5:24
5:24
5:26
5:26
Sunset
6:00
5:59
5:57
5:55
5:53

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Manza Onsen:

No recent snow reports

No recent snow reports

Manza Onsen 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 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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