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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 13 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 37.0mm), heaviest during Wed afternoon. Warm (max 21°C on Mon morning, min 15°C on Mon night). Wind will be generally light.

Days 5-7 weather summary:

Heavy rain (total 30.0mm), heaviest during Sat afternoon. Very mild (max 17°C on Sat morning, min 14°C on Wed night). Wind will be generally light.

Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
clear
thunderstorm
mod rain
light rain
mod rain
light rain
light rain
mod rain
heavy rain
light rain
light rain
light rain
light rain
light rain
part cloud
some clouds
clear
t-storm
risk
mod. rain
light rain
mod. rain
light rain
light rain
mod. rain
heavy rain
light rain
light rain
light rain
light rain
light rain
some clouds
km/h
10
SSW
10
SSW
5
WNW
5
SSE
5
S
0
SSW
0
SW
0
SSW
0
SE
5
SSE
5
SSE
5
SSE
10
SSE
10
SE
10
ESE
10
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
8
3
6
5
2
10
14
3
1
1
2
1
max °C
18
21
20
17
17
16
15
15
15
15
15
14
15
15
15
16
min °C
17
18
18
15
16
16
15
15
15
14
14
14
14
15
15
14
 chill °C
17
18
18
15
16
16
15
15
15
14
14
14
14
15
15
13
Humid %
97
79
80
96
94
94
95
97
99
99
99
99
99
96
98
85
Freeze m
4950
5000
4750
4550
4500
4400
4350
4350
4300
4300
4300
4350
4700
4450
4650
4850
Sea lvl1000m2000m3000m4000m5000m
1718191515151414141414131414141417222016181715171615151514161515
Sunrise
5:24
5:24
5:26
5:26
5:26
Sunset
5:52
5:52
5:50
5:49
5:46

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 2 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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