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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 am 21 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 36.0mm), heaviest during Mon morning. Very mild (max 18°C on Mon morning, min 13°C on Tue morning). Wind will be generally light.

Days 4-6 weather summary:

Light rain (total 8.0mm), mostly falling on Thu afternoon. Very mild (max 16°C on Thu afternoon, min 10°C on Sat night). Wind will be generally light.

Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
heavy rain
light rain
mod rain
rain showers
clear
rain showers
light rain
light rain
light rain
part cloud
rain showers
part cloud
part cloud
rain showers
light rain
light rain
rain showers
light rain
heavy rain
light rain
mod. rain
rain shwrs
clear
rain shwrs
light rain
light rain
light rain
some clouds
rain shwrs
some clouds
some clouds
rain shwrs
light rain
light rain
rain shwrs
light rain
km/h
5
NNE
10
NNE
25
NNW
20
NNW
15
NNW
5
S
10
S
10
S
10
S
10
N
10
NNW
0
S
5
SSW
5
SW
10
S
15
N
0
W
10
SSE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
18
3
7
1
1
1
1
4
1
1
1
2
1
2
max °C
18
18
17
15
15
15
14
14
14
15
16
14
15
15
14
12
12
11
min °C
17
17
15
13
15
13
13
14
13
15
15
14
14
14
13
12
12
10
 chill °C
17
16
13
11
14
12
12
14
12
15
15
14
14
14
12
11
12
8
Humid %
98
92
96
92
73
84
98
97
100
93
78
53
84
84
96
83
85
95
Freeze m
5300
5250
5250
5350
4950
4800
4600
4600
4500
4350
4300
4200
4050
4150
3950
3450
3600
3800
Sea lvl1000m2000m3000m4000m5000m
171715141413131313141414131413111110181816171514141514171612171613131311
Sunrise
5:30
5:30
5:31
5:31
5:33
5:33
Sunset
5:43
5:40
5:39
5:37
5:37
5:35

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 3 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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