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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 19 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 28.0mm), heaviest during Mon night. Very mild (max 16°C on Sat afternoon, min 13°C on Tue morning). Wind will be generally light.

Days 4-6 weather summary:

Some drizzle, heaviest during Thu afternoon. Very mild (max 15°C on Wed morning, min 11°C on Tue afternoon). Wind will be generally light.

Sat
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
light rain
rain showers
rain showers
light rain
light rain
light rain
mod rain
light rain
part cloud
clear
clear
clear
part cloud
part cloud
rain showers
part cloud
some clouds
light rain
rain shwrs
rain shwrs
light rain
light rain
light rain
mod. rain
light rain
some clouds
clear
clear
clear
some clouds
some clouds
rain shwrs
some clouds
km/h
5
SE
5
SSE
5
ESE
5
ESE
10
SE
10
SE
10
E
15
N
25
NW
15
NNW
5
NNW
0
NW
0
SW
5
SSE
5
S
5
SSE
10
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
3
2
4
4
2
7
3
1
max °C
16
14
14
14
14
15
15
15
13
13
11
15
15
11
14
14
12
min °C
15
14
14
14
14
15
15
14
13
11
11
12
12
11
12
12
11
 chill °C
15
14
14
14
13
15
15
13
11
9
10
12
12
10
12
12
10
Humid %
72
95
97
91
93
98
98
96
87
62
49
47
58
87
85
81
91
Freeze m
4750
4750
4650
4900
5250
5150
5250
5250
5050
4950
4800
4550
4350
4300
4050
4300
4300
Sea lvl1000m2000m3000m4000m5000m
1514131414151514131211131311121211161415151415151514129161411151311
Sunrise
5:31
5:31
5:33
5:33
5:33
Sunset
5:47
5:46
5:45
5:44
5:42
5:40

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 3 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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