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Sun Valley (Nagano) resort snow
Lat Long: 36.71° N 138.49° E
Ski Japan - Nagano

Sun Valley (Nagano) Snow Forecast

Weather Forecast for Sun Valley (Nagano) at 1510m altitude

Issued: 2 pm 01 May 2026 (local time)

Forecast update in  hr  min

Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 51.0mm), heaviest during Fri afternoon. Very mild (max 13°C on Sun morning, min 3°C on Fri night). Winds decreasing (fresh winds from the WNW on Fri night, calm by Sat night).

Days 4-6 weather summary:

Moderate rain (total 14.0mm), heaviest on Mon night. Very mild (max 14°C on Thu morning, min 3°C on Mon night). Wind will be generally light.

Fri
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
rain showers
clear
part cloud
part cloud
cloud
light rain
heavy rain
rain showers
light rain
mod rain
part cloud
part cloud
cloud
cloud
light rain
part cloud
risk thun- der
rain shwrs
clear
some clouds
some clouds
cloudy
light rain
heavy rain
rain shwrs
light rain
mod. rain
some clouds
some clouds
cloudy
cloudy
light rain
some clouds
km/h
10
S
20
W
25
NW
20
NW
5
SW
10
S
10
SSW
25
SSW
15
WSW
5
W
10
NW
10
NW
5
WNW
10
SSE
5
S
5
N
5
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
12
21
2
12
4
5
8
1
 max °C
11
5
10
10
8
13
10
12
12
10
5
10
12
8
12
12
9
 min °C
8
3
7
7
8
11
8
9
11
8
3
6
10
7
10
11
8
6
-2
3
6
8
10
6
6
9
8
-1
4
9
5
10
11
8
85
84
57
38
36
44
59
85
98
81
89
54
37
83
63
56
85
3300
2350
2500
2750
3350
3100
2950
4250
3700
2950
2100
3000
3100
3400
3200
3000
3100
Sea lvl1000m2000m3000m4000m5000m
93888119111194711811118104109713910131041011713128
Sunrise
4:52
4:50
4:48
4:48
4:47
Sunset
6:32
6:34
6:35
6:36
6:37
6:37

Snow Radar

Latest snow reports near Sun Valley (Nagano):

No recent snow reports

No recent snow reports

Sun Valley (Nagano) Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall: 7 Apr 2026
Snow AlertsCreate Alert
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)


Snow History

Week 1 of May has on average:

0.0
Bluebird Powder days
Fresh snow, mostly sunny, light wind.
0.0
Powder days
Fresh snow, limited sun, any wind.
0.1
Bluebird days
Average snow, mostly sunny, light wind.



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