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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 06 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 127.0mm), heaviest during Sun night. Very mild (max 19°C on Mon night, min 14°C on Wed afternoon). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 61.0mm), heaviest during Fri afternoon. Very mild (max 18°C on Sat morning, min 13°C on Wed night). Wind will be generally light.

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
heavy rain
heavy rain
mod rain
light rain
light rain
heavy rain
mod rain
mod rain
mod rain
heavy rain
light rain
light rain
light rain
mod rain
heavy rain
heavy rain
heavy rain
heavy rain
mod. rain
light rain
light rain
heavy rain
mod. rain
mod. rain
mod. rain
heavy rain
light rain
light rain
light rain
mod. rain
heavy rain
heavy rain
km/h
15
ESE
15
SE
10
SSE
5
W
5
SSE
15
S
5
SSE
5
N
10
N
5
SSW
5
SSW
10
S
10
SSE
10
SSE
5
SSE
5
NW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
44
28
8
3
2
22
7
6
7
16
1
1
2
9
11
16
max °C
17
18
18
19
18
18
18
17
15
14
14
14
14
14
16
17
min °C
15
18
18
18
18
18
17
16
14
13
14
14
14
14
15
16
 chill °C
14
18
18
18
18
18
17
15
14
13
14
14
13
13
15
16
Humid %
95
98
99
90
95
100
99
96
88
99
99
99
99
99
98
96
Freeze m
5050
5300
5300
5250
5100
5250
5150
5200
5250
5100
4950
4800
4950
4950
4950
4950
Sea lvl1000m2000m3000m4000m5000m
1517171817171716141313131314151716171818191818171514141414141516
Sunrise
5:18
5:18
5:20
5:20
5:22
Sunset
6:04
6:01
6:00
5:59
5:58

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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