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Ski Japan - Nagano

Shiga Kogen-Sun Valley Snow Forecast

Weather Forecast for Shiga Kogen Sun Valley at 1475 m
Issued: 2 am  22 Dec 2025 (local time)

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New snow in Shiga Kogen-Sun Valley

1.4cm0.6in
Mon 22nd (AM)
The snow forecast for Shiga Kogen-Sun Valley is: A light covering of new snow, mostly falling on Tue night. Becoming milder with light rain (total 9.0mm) on Wed afternoon. Freeze-thaw conditions (max 4°C on Wed afternoon, min -7°C on Mon morning). Wind will be generally light.

Shiga Kogen-Sun Valley Weather (Next 3 days): The snow forecast for Shiga Kogen-Sun Valley is: A light covering of new snow, mostly falling on Tue night. Becoming milder with light rain (total 9.0mm) on Wed afternoon. Freeze-thaw conditions (max 4°C on Wed afternoon, min -7°C on Mon morning). Wind will be generally light.

Shiga Kogen-Sun Valley Weather (Days 4-6): A heavy fall of snow, heaviest during Fri morning. Freeze-thaw conditions (max 1°C on Thu morning, min -13°C on Fri night). Wind will be generally light.


Shiga Kogen-Sun Valley Live Weather

ResortSnow DepthTemp. (°C)Wind (km/h)Weather
Top Lift: 
-7
15
snow showers
Bottom Lift: 
-6
15
snow showers
6 Day Forecast
Issued: 2 am 22 Dec 2025 / Updates in ::
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Choose Forecast
Last 6 daysScroll left for last 6 daysNow
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
AM
PM
night
AM
PM
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night
AM
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night
light snow
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clear
clear
clear
light snow
light snow
mod rain
light rain
light snow
cloud
light snow
heavy snow
mod snow
snow showers
snow showers
part cloud
cloud
light snow
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clear
clear
clear
light snow
light snow
mod. rain
light rain
light snow
cloudy
light snow
heavy snow
mod. snow
snow shwrs
snow shwrs
some clouds
cloudy
 km/h
15
NNW
10
N
5
NNW
5
SSW
10
S
15
S
15
SSE
10
S
5
WSW
5
NNW
5
WNW
10
SSW
25
NW
25
NW
10
W
5
W
5
NNW
0
NNE
Snow map
1
4
2
15
7
5
7
2
max °C
-6
-6
-3
0
1
1
2
4
4
1
1
1
-6
-10
-12
-9
-8
-7
min °C
-7
-7
-6
-2
0
0
1
2
2
1
1
-4
-9
-12
-13
-11
-10
-9
-13
-11
-6
-4
-3
-4
-3
-1
0
0
1
-7
-18
-20
-18
-15
-10
-9
91
91
67
60
62
61
89
95
97
98
96
96
94
94
91
76
71
60
550
600
0
1150
1450
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1750
1650
1450
650
0
0
0
350
0
Sea lvl1000m2000m3000m4000m5000m
-7-8-5-10013310-3-9-12-14-10-9-8-6-6-7-1-1-213321-2-7-10-13-9-9-10
Sunrise
6:54
6:54
6:54
6:56
6:56
6:56
Sunset
4:32
4:34
4:34
4:35
4:36
4:36
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Snow Radar

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Latest snow reports near Shiga Kogen-Sun Valley:

  • 30 km away from Shiga Kogen-Sun Valley

    1 hour ago
    weather station observation

    Moderate to heavy freezing rain reported from Nagano at 120 metres elevation 8 kms SE of Iizuna Kogen but it is forecast cold enough for snow at the ski area from Iizuna Kogen

  • 48 km away from Shiga Kogen-Sun Valley

    1 hour ago
    weather station observation

    Continuous light rain reported from Takada at 18 metres elevation only 2 kms E of Kanayasan but it is forecast cold enough for snow at the ski area from Kanayasan

  • 32 km away from Shiga Kogen-Sun Valley

    1 hour ago
    Is it snowing?

    Snowing at a moderate rate in Kagura. from Kagura

Shiga Kogen-Sun Valley Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:9cm
Last snowfall:21 Dec 2025
Snow AlertsCreate Alert
Other resorts in Japan - Nagano are reporting: powder (1) / good piste (1)


Snow History

Week 4 of December has on average:
2.0
Bluebird Powder days
Fresh snow, mostly sunny, light wind.
2.4
Powder days
Fresh snow, limited sun, any wind.
1.3
Bluebird days
Average snow, mostly sunny, light wind.



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