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snowy resort
Lat Long: 36.72° N 138.56° E
Ski Japan - Nagano

Shiga Kogen-Nishidateyama Snow Forecast

Weather Forecast for Nishidateyama at 1678m altitude

Issued: 8 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Last 6 daysScroll left for last 6 daysNow

Next 4 days weather summary:

Heavy rain (total 39.0mm), heaviest during Tue afternoon. Very mild (max 17°C on Thu afternoon, min 12°C on Mon night). Winds increasing (light winds from the N on Mon night, fresh winds from the SE by Tue night).

Days 5-7 weather summary:

Heavy rain (total 34.0mm), heaviest during Fri night. Warm (max 20°C on Fri afternoon, min 13°C on Sun morning). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
light rain
heavy rain
heavy rain
light rain
light rain
part cloud
rain showers
thunderstorm
part cloud
part cloud
thunderstorm
mod rain
thunderstorm
thunderstorm
light rain
some clouds
light rain
heavy rain
heavy rain
light rain
light rain
some clouds
rain shwrs
t-storm
risk
some clouds
some clouds
t-storm
risk
mod. rain
t-storm
risk
t-storm
risk
light rain
km/h
5
NNW
10
N
20
NNW
20
SE
25
SE
20
SE
15
SSE
15
SSE
10
SSE
10
SSE
10
SSE
5
ESE
10
SSE
5
SSE
5
E
0
N
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
1
13
16
3
2
2
2
2
10
5
6
3
max °C
14
14
14
14
13
14
14
16
17
15
19
20
16
17
17
15
min °C
12
14
13
13
12
13
13
16
16
15
17
17
16
16
16
14
 chill °C
11
13
11
11
10
11
12
15
16
15
17
17
16
16
16
13
Humid %
55
58
96
96
95
90
82
80
73
86
71
67
90
89
89
86
Freeze m
4550
4650
4650
4600
4350
4400
4550
4400
4550
4700
4700
4650
4700
4700
4750
4900
Sea lvl1000m2000m3000m4000m5000m
1212121211121314151416161515151312161515141515181915222017191816
Sunrise
4:58
4:58
5:00
5:01
5:01
Sunset
6:42
6:40
6:39
6:38
6:37

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network

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Latest snow reports near Shiga Kogen-Nishidateyama:

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Shiga Kogen-Nishidateyama Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall: 9 May 2026
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Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)

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Snow History

Week 2 of August 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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