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Ski Japan - Gunma

Tanbara Snow Forecast

36.78° N 139.08° E

Weather Forecast for Tanbara at 1550m altitude

Issued:
8 pm 05 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 131.0mm), heaviest during Mon morning. Very mild (max 18°C on Tue morning, min 11°C on Sun morning). Winds decreasing (fresh winds from the ESE on Mon morning, calm by Tue morning).

Days 5-7 weather summary:

Heavy rain (total 160.0mm), heaviest during Tue night. Very mild (max 16°C on Tue night, min 13°C on Wed night). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
light rain
light rain
heavy rain
heavy rain
heavy rain
light rain
light rain
light rain
heavy rain
mod rain
heavy rain
heavy rain
heavy rain
mod rain
heavy rain
light rain
light rain
light rain
heavy rain
heavy rain
heavy rain
light rain
light rain
light rain
heavy rain
mod. rain
heavy rain
heavy rain
heavy rain
mod. rain
heavy rain
km/h
15
S
15
SSE
20
SSE
15
ESE
30
ESE
10
S
10
NNW
5
S
10
S
10
S
10
NW
10
N
10
SE
10
SSE
10
SSE
10
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
4
2
2
23
71
21
2
1
5
31
7
13
39
14
6
30
max °C
13
12
12
15
17
17
17
18
16
16
15
15
14
13
13
14
min °C
12
11
12
12
16
17
17
16
15
16
15
14
13
13
13
14
 chill °C
11
9
10
10
14
17
17
16
15
16
15
13
13
12
12
13
Humid %
97
95
90
94
98
99
79
67
98
98
98
94
99
98
99
99
Freeze m
4700
4900
4700
4900
5350
5350
5200
5100
5250
5250
5200
5200
5100
5150
5100
5050
Sea lvl1000m2000m3000m4000m5000m
1312121417171717161615151413131414141414171717181716161514151515
Sunrise
5:18
5:18
5:18
5:20
5:20
Sunset
6:05
6:04
6:01
6:00
5:59

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 1 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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