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snowy resort
Ski Japan - Gunma

Manza Onsen Snow Forecast

36.64° N 138.51° E
1640m altitude
Issued:
8 pm 15 Aug 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Light rain (total 7.0mm), mostly falling on Tue afternoon. Warm (max 20°C on Tue morning, min 14°C on Sat night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 63.0mm), heaviest during Thu night. Warm (max 20°C on Fri morning, min 15°C on Tue night). Wind will be generally light.

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
part cloud
cloud
rain showers
cloud
light rain
cloud
part cloud
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
light rain
some clouds
cloudy
rain shwrs
cloudy
light rain
cloudy
some clouds
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
km/h
10
SE
5
SE
5
ESE
10
SE
5
SSE
5
SE
5
SE
5
SSE
5
E
5
SE
0
SSE
5
E
5
SSE
0
NE
5
E
5
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
1
1
3
2
4
9
1
5
13
16
max °C
15
19
18
14
17
16
15
20
19
15
19
19
16
19
19
16
min °C
14
16
15
14
17
15
14
17
17
15
18
17
15
19
17
15
 chill °C
14
16
15
14
17
15
14
17
17
15
18
17
15
19
17
15
Humid %
94
89
68
90
83
89
92
87
79
94
90
86
89
85
83
89
Freeze m
4850
4900
4950
5100
5050
5050
5100
5150
5050
5050
5000
5050
5100
5000
5000
5100
Sea lvl1000m2000m3000m4000m5000m
1415161415151416171517171617171515181714171615191815191816191816
Sunrise
5:03
5:03
5:05
5:05
5:05
Sunset
6:36
6:35
6:34
6:31
6:30

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 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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