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snowy resort
Ski Japan - Nagano

Yunomaru Snow Forecast

36.42° N 138.42° E
1965m altitude
Issued:
2 am 23 Aug 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 29.0mm), heaviest during Sun afternoon. Warm (max 20°C on Tue morning, min 16°C on Sun morning). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 55.0mm), heaviest during Thu night. Very mild (max 19°C on Wed morning, min 13°C on Fri morning). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
thunderstorm
thunderstorm
rain showers
rain showers
thunderstorm
rain showers
clear
thunderstorm
rain showers
thunderstorm
thunderstorm
rain showers
thunderstorm
thunderstorm
heavy rain
rain showers
rain showers
light rain
t-storm
risk
t-storm
risk
rain shwrs
rain shwrs
t-storm
risk
rain shwrs
clear
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
rain shwrs
t-storm
risk
t-storm
risk
heavy rain
rain shwrs
rain shwrs
light rain
km/h
10
NW
5
NW
5
W
10
NW
0
WNW
5
W
5
WNW
5
NNW
5
SW
10
SW
10
SW
15
WSW
10
WSW
10
SW
25
WSW
10
WNW
10
NW
5
S
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
6
1
1
6
3
4
6
2
5
7
5
5
16
9
2
4
max °C
18
18
16
18
19
18
20
20
18
19
19
18
17
16
15
14
15
14
min °C
16
17
16
17
18
17
17
19
17
17
18
17
17
15
14
13
15
13
 chill °C
16
17
16
17
18
17
17
19
17
17
18
17
17
14
12
12
15
13
Humid %
80
78
85
72
70
76
73
67
77
76
71
72
80
83
93
94
79
81
Freeze m
4900
5000
4950
5000
5000
5050
5000
4950
5100
5100
4950
5000
4950
4900
4950
4750
4750
4800
Sea lvl1000m2000m3000m4000m5000m
171816181918192018181918171615141514201816202017222017212017191615151614
Sunrise
5:09
5:09
5:11
5:11
5:13
5:13
Sunset
6:27
6:25
6:24
6:22
6:22
6:21

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Yunomaru:

No recent snow reports

No recent snow reports

Yunomaru Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall: 1 May 2026
Snow AlertsCreate Alert
Other resorts in Japan - Nagano are reporting: powder (0) / good piste (0)

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Snow History

Week 4 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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