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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 24 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 22.0mm), heaviest during Fri night. Very mild (max 15°C on Thu afternoon, min 8°C on Fri night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 36.0mm), heaviest during Sun night. Very mild (max 15°C on Mon morning, min 9°C on Mon night). Wind will be generally light.

Thu
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
cloud
clear
rain showers
heavy rain
light rain
light rain
part cloud
cloud
light rain
heavy rain
clear
thunderstorm
rain showers
part cloud
light rain
cloud
some clouds
cloudy
clear
rain shwrs
heavy rain
light rain
light rain
some clouds
cloudy
light rain
heavy rain
clear
t-storm
risk
rain shwrs
some clouds
light rain
cloudy
km/h
10
NW
5
WNW
5
W
0
WNW
10
WSW
10
SW
5
SSW
5
SSW
5
SSW
5
S
10
SE
15
W
10
W
10
WNW
10
W
10
SW
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
12
5
3
1
23
2
2
1
max °C
15
12
14
14
11
8
8
9
11
12
11
15
14
11
13
12
11
min °C
12
11
12
11
8
8
8
8
11
10
10
12
12
9
10
11
10
 chill °C
11
11
12
11
7
6
8
7
11
10
9
10
12
7
9
10
9
Humid %
67
68
56
62
92
96
97
92
83
80
97
83
72
87
73
73
70
Freeze m
4400
4150
4000
3850
3550
3450
3600
3750
3950
4100
3950
4050
3950
3750
3900
3850
3950
Sea lvl1000m2000m3000m4000m5000m
1311121197891010101212101110101411151310999121210161410131210
Sunrise
5:35
5:35
5:37
5:37
5:37
Sunset
5:40
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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