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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 am 30 Aug 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 25.0mm), heaviest during Sun morning. Very mild (max 19°C on Tue afternoon, min 15°C on Mon night). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 39.0mm), heaviest during Thu afternoon. Warm (max 20°C on Wed afternoon, min 15°C on Fri night). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
clear
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
rain showers
rain showers
mod rain
light rain
t-storm
risk
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
clear
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
t-storm
risk
rain shwrs
t-storm
risk
rain shwrs
rain shwrs
mod. rain
light rain
km/h
10
W
10
W
5
W
5
SSW
5
SSW
5
S
5
S
0
SW
10
S
5
WSW
5
SW
10
S
10
SW
5
SW
10
SW
10
WSW
10
SSW
10
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
4
4
3
2
5
2
4
1
1
4
3
1
13
3
3
6
5
max °C
17
18
16
18
17
16
18
19
17
19
20
18
20
19
17
17
17
16
min °C
16
17
16
16
16
15
16
17
16
17
18
16
17
18
16
16
16
15
 chill °C
16
17
16
16
16
15
16
17
16
17
18
16
17
18
16
16
16
15
Humid %
97
86
91
89
88
88
84
77
86
81
69
83
82
75
79
88
96
96
Freeze m
5000
5150
5150
5050
5150
5250
5050
5050
5100
5000
4950
5000
5100
5100
5150
5150
5150
5250
Sea lvl1000m2000m3000m4000m5000m
161716161616171716171816171816161615181816181716191916191916211916191716
Sunrise
5:13
5:15
5:16
5:16
5:18
5:18
Sunset
6:17
6:15
6:15
6:13
6:12
6:09

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 August 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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