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Ski Japan - Nagano

Koumi Riekkusu Ski Valley Snow Forecast

Weather Forecast for Koumi Riekkusu Ski Valley at 1590 m
Issued: 2 pm  19 Sep 2025 (local time)

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The snow forecast for Koumi Riekkusu Ski Valley is: Moderate rain (total 15.0mm), heaviest on Sat night. Very mild (max 17°C on Sun morning, min 9°C on Sun night). Wind will be generally light.

Koumi Riekkusu Ski Valley Weather (Next 3 days): The snow forecast for Koumi Riekkusu Ski Valley is: Moderate rain (total 15.0mm), heaviest on Sat night. Very mild (max 17°C on Sun morning, min 9°C on Sun night). Wind will be generally light.

Koumi Riekkusu Ski Valley Weather (Days 4-6): Light rain (total 6.0mm), mostly falling on Wed night. Very mild (max 14°C on Mon afternoon, min 9°C on Mon night). Wind will be generally light.


Koumi Riekkusu Ski Valley Live Weather

ResortSnow DepthTemp. (°C)Wind (km/h)Weather
Top Lift: 
11
5
light rain
Bottom Lift: 
13
10
light rain
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6 Day Forecast
Issued: 2 pm 19 Sep 2025 / Updates in ::
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Last 6 daysScroll left for last 6 daysNow
Fri
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
light rain
light rain
light rain
light rain
rain showers
part cloud
part cloud
part cloud
cloud
part cloud
cloud
light rain
cloud
cloud
light rain
light rain
cloud
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
rain shwrs
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
light rain
cloudy
cloudy
light rain
light rain
cloudy
light rain
rain shwrs
 km/h
5
ESE
10
SSE
15
SSE
15
S
25
SW
15
W
15
NNW
10
NNW
5
NNE
5
NE
10
SE
10
ESE
10
ESE
10
SE
10
SSE
10
SSE
15
S
15
SW
10
WSW
10
WSW
Snow map
 cm 
 mm 
2
2
1
2
5
3
1
1
4
5
2
max°C
12
12
14
14
15
17
15
10
14
14
11
13
12
11
11
12
12
14
14
15
min°C
12
12
13
14
15
16
11
9
11
12
9
11
11
10
10
12
11
13
14
14
chill°C 
12
11
12
13
14
16
10
8
11
11
8
10
10
9
8
11
9
12
14
14
Humid% 
97
97
96
95
93
76
75
95
73
56
90
84
80
86
86
91
96
93
96
96
Freezing level (m
4300
4250
4450
4500
4600
4300
4200
3700
3750
3500
4050
4150
3750
4100
4400
4500
4600
4700
4600
4600
topliftbotliftSea lvl1000m2000m3000m4000m5000m
1111131314161391112101111101111121313141312151515191510151510141311121312151414
Sunrise
5:31
5:31
5:33
5:33
5:35
5:35
Sunset
5:47
5:46
5:45
5:44
5:42
5:40
5:38
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Snow Radar

Latest snow reports near Koumi Riekkusu Ski Valley:

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Koumi Riekkusu Ski Valley Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall:15 Apr 2025
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Other resorts in Japan - Nagano 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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