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Ski Japan - Gunma

Manza Onsen Snow Forecast

36.64° N 138.51° E

Weather Forecast for Manza Onsen at 1820 m altitude

Issued:
8 pm 27 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 46.0mm), heaviest during Tue morning. Very mild (max 14°C on Wed morning, min 8°C on Tue afternoon). Wind will be generally light.

Days 5-7 weather summary:

Moderate rain (total 14.0mm), heaviest on Thu afternoon. Very mild (max 13°C on Wed night, min 5°C on Fri afternoon). Wind will be generally light.

Monday
28
Tuesday
29
Wednesday
30
Thursday
1
Friday
2
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
mod rain
mod rain
mod rain
heavy rain
mod rain
clear
clear
clear
part cloud
light rain
light rain
light rain
rain showers
clear
clear
light rain
mod. rain
mod. rain
mod. rain
heavy rain
mod. rain
clear
clear
clear
some clouds
light rain
light rain
light rain
rain shwrs
clear
clear
km/h
10
SSW
10
SW
20
W
15
W
15
W
10
WNW
5
W
5
SW
5
SW
10
SSW
15
SW
10
WSW
10
WNW
20
NW
15
NNW
5
NNW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
 mm
2
9
8
6
13
8
—
—
—
—
2
5
5
2
—
—
max °C
12
13
13
13
9
8
10
14
14
13
13
12
11
7
7
5
min °C
12
12
13
10
9
8
8
11
11
11
13
12
6
6
5
5
 chill °C
11
11
11
8
7
6
7
10
11
10
12
11
2
2
2
2
Humid %
91
99
88
89
96
88
64
66
63
85
93
97
87
69
54
48
Freeze m
4250
4250
4200
4200
3800
3900
4200
4450
4500
4700
4550
4550
4250
3800
3850
3950
Sea lvl1000m2000m3000m4000m5000m
12121211889121212121287651213131198714131113129863
Sunrise
—
5:37
—
—
5:37
—
—
5:39
—
—
5:39
—
—
5:41
—
—
Sunset
—
—
5:35
—
—
5:32
—
—
5:31
—
—
5:30
—
—
5:29
—

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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