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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:
2 pm 04 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 65.0mm), heaviest during Sun night. Very mild (max 18°C on Mon morning, min 11°C on Sat night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 27.0mm), heaviest during Tue night. Very mild (max 16°C on Mon afternoon, min 10°C on Wed night). Wind will be generally light.

Fri
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
mod rain
light rain
light rain
light rain
cloud
part cloud
light rain
heavy rain
light rain
light rain
light rain
light rain
light rain
mod rain
light rain
light rain
part cloud
mod. rain
light rain
light rain
light rain
cloudy
some clouds
light rain
heavy rain
light rain
light rain
light rain
light rain
light rain
mod. rain
light rain
light rain
some clouds
km/h
5
WSW
10
SW
0
SSW
0
SSE
10
SE
15
SE
20
SE
25
ESE
10
WSW
10
WSW
10
W
10
SW
5
SSW
10
SW
5
NW
10
WNW
5
WNW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
6
5
2
1
1
48
2
2
4
4
3
7
5
2
max °C
14
12
13
13
12
11
11
14
18
16
15
15
15
15
14
14
11
min °C
13
12
12
12
11
11
11
12
14
15
15
15
15
14
13
13
10
 chill °C
13
12
12
12
10
9
8
9
13
15
15
15
15
14
12
12
9
Humid %
92
97
97
96
97
91
92
92
95
93
96
96
99
98
98
98
92
Freeze m
4400
4200
4250
4300
4500
4750
4750
5000
5200
5200
5050
5000
5050
5150
5100
5100
4850
Sea lvl1000m2000m3000m4000m5000m
13121212111111131615151514141313111412141312121112171615161515141411
Sunrise
5:18
5:20
5:20
5:20
5:22
Sunset
6:09
6:08
6:07
6:06
6:05
6:02

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 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.

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