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snowy resort
Ski Japan - Gunma

Manza Onsen Snow Forecast

36.64° N 138.51° E

Weather Forecast for Manza Onsen at 1820m altitude

Issued:
8 pm 14 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 100.0mm), heaviest during Wed afternoon. Very mild (max 15°C on Mon night, min 11°C on Wed night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 40.0mm), heaviest during Sat afternoon. Very mild (max 15°C on Sun morning, min 11°C on Thu night). Wind will be generally light.

Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
light rain
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
light rain
part cloud
part cloud
part cloud
part cloud
mod rain
heavy rain
rain showers
light rain
light rain
mod. rain
heavy rain
heavy rain
heavy rain
heavy rain
light rain
light rain
some clouds
some clouds
some clouds
some clouds
mod. rain
heavy rain
rain shwrs
km/h
10
SW
10
SW
10
SW
10
SW
5
S
5
ESE
5
SE
0
SE
0
NE
10
SE
5
SE
5
ESE
10
SE
10
SSE
5
SSE
10
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
5
3
6
19
12
28
24
1
2
6
23
7
max °C
15
14
14
13
13
12
11
11
12
11
13
13
13
13
13
14
min °C
13
13
13
12
12
12
11
11
11
11
11
12
12
13
13
13
 chill °C
12
12
13
12
12
12
10
11
11
10
10
12
11
12
13
13
Humid %
91
92
96
98
98
99
97
98
91
85
84
76
85
96
97
96
Freeze m
4500
4550
4450
4400
4300
4300
4200
4100
4200
4400
4500
4600
4750
4650
4700
4800
Sea lvl1000m2000m3000m4000m5000m
1413131212111010111012121212131314141413131211121211141312131313
Sunrise
5:26
5:28
5:28
5:28
5:30
Sunset
5:53
5:52
5:51
5:50
5:47

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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