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Ski Japan - Gunma

Tanbara Snow Forecast

36.78° N 139.08° E

Weather Forecast for Tanbara at 1375m altitude

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

Next 4 days weather summary:

Heavy rain (total 20.0mm), heaviest during Mon morning. Warm (max 22°C on Wed morning, min 17°C on Mon night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 88.0mm), heaviest during Fri night. Warm (max 20°C on Thu morning, min 12°C on Sat morning). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
thunderstorm
thunderstorm
light rain
part cloud
rain showers
light rain
rain showers
thunderstorm
mod rain
thunderstorm
mod rain
mod rain
light rain
mod rain
heavy rain
rain shwrs
t-storm
risk
t-storm
risk
light rain
some clouds
rain shwrs
light rain
rain shwrs
t-storm
risk
mod. rain
t-storm
risk
mod. rain
mod. rain
light rain
mod. rain
heavy rain
km/h
0
NNW
5
S
10
S
10
S
10
S
10
S
10
S
0
N
0
SW
10
S
5
SSW
5
W
5
SW
5
N
0
N
5
S
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
4
3
2
1
1
1
5
7
3
8
7
5
6
41
max °C
18
18
18
17
19
20
18
22
21
19
20
19
18
15
15
14
min °C
18
18
18
17
18
19
17
19
20
19
19
18
16
15
14
13
 chill °C
18
18
18
17
18
19
17
19
20
19
19
18
16
15
14
13
Humid %
97
96
96
98
95
83
98
84
84
88
91
90
92
96
95
100
Freeze m
5100
5050
5150
5200
5100
5100
5050
5000
5000
4950
4950
5000
4900
4800
4850
4700
Sea lvl1000m2000m3000m4000m5000m
1717171617191719191819181614141318191918202118232118221917151514
Sunrise
5:13
5:13
5:13
5:15
5:16
Sunset
6:14
6:13
6:10
6:09
6:07

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Tanbara:

No recent snow reports

No recent snow reports

Tanbara 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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