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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 24 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Heavy rain (total 24.0mm), heaviest during Fri night. Very mild (max 14°C on Fri morning, min 8°C on Fri night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 40.0mm), heaviest during Sun night. Very mild (max 15°C on Mon morning, min 10°C on Sun night). Wind will be generally light.

Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
clear
rain showers
heavy rain
mod rain
light rain
part cloud
part cloud
light rain
heavy rain
light rain
thunderstorm
rain showers
clear
rain showers
light rain
some clouds
clear
rain shwrs
heavy rain
mod. rain
light rain
some clouds
some clouds
light rain
heavy rain
light rain
t-storm
risk
rain shwrs
clear
rain shwrs
light rain
km/h
5
WNW
5
W
0
SW
5
WSW
10
SW
5
SSW
5
SW
5
SW
5
S
10
SSE
15
W
10
W
10
W
15
W
10
SW
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
13
6
2
1
29
1
2
2
2
2
max °C
12
14
13
11
8
8
9
12
12
11
15
14
13
14
14
12
min °C
11
12
12
8
8
8
8
11
10
10
13
14
11
12
13
11
 chill °C
11
12
12
6
6
8
8
11
9
9
12
13
9
11
12
10
Humid %
71
56
61
91
98
97
91
79
83
96
82
73
77
69
68
90
Freeze m
4150
4000
3850
3550
3450
3600
3700
3950
4100
4150
4400
4200
3850
3950
3950
4100
Sea lvl1000m2000m3000m4000m5000m
111212978811101013131112131111151310998131211161411151412
Sunrise
5:35
5:35
5:37
5:37
5:37
Sunset
5:38
5:37
5:36
5:35
5:32

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 4 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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