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Ski Japan - Nagano

Heavens Sonohara Snow World Snow Forecast

Lat Long: 35.46° N 137.67° E

Weather Forecast for Heavens Sonohara Snow World at 1488m altitude

Issued: 2 am 30 Jun 2026 (local time)

Forecast update in  hr  min

Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 69.0mm), heaviest during Thu morning. Very mild (max 18°C on Tue morning, min 13°C on Wed night). Winds increasing (calm on Tue morning, fresh winds from the SSW by Thu morning).

Days 4-6 weather summary:

Moderate rain (total 17.0mm), heaviest on Sun afternoon. Very mild (max 18°C on Sat afternoon, min 13°C on Fri morning). Wind will be generally light.

Tuesday
30
Wednesday
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
thunderstorm
part cloud
cloud
thunderstorm
heavy rain
heavy rain
mod rain
light rain
rain showers
part cloud
part cloud
part cloud
clear
rain showers
light rain
light rain
light rain
some clouds
t-storm
risk
some clouds
cloudy
t-storm
risk
heavy rain
heavy rain
mod. rain
light rain
rain shwrs
some clouds
some clouds
some clouds
clear
rain shwrs
light rain
light rain
light rain
km/h
5
N
10
WSW
5
NW
5
SE
5
SW
10
SSE
30
SSW
20
SSW
20
W
15
NW
15
WNW
10
N
5
NW
10
WSW
5
SW
10
SSW
5
SSW
5
SE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
3
2
20
30
10
4
2
2
4
5
4
max °C
18
17
16
16
16
14
15
16
15
16
15
15
17
18
16
15
15
15
min °C
16
16
15
16
16
13
14
16
13
13
15
14
15
17
14
15
15
14
 chill °C
16
16
15
16
16
12
12
15
12
12
14
14
15
17
14
15
15
14
Humid %
77
84
85
79
88
86
99
99
98
93
87
80
69
57
96
97
95
93
Freeze m
4450
4400
4450
4450
4550
4650
4750
4950
4950
5000
4800
4550
4500
4500
4650
4500
4550
4700
Sea lvl1000m2000m3000m4000m5000m
161615161613141614141515151715151515191715181713141614161613181914161515
Sunrise
4:37
4:37
4:37
4:37
4:37
4:39
Sunset
7:07
7:07
7:07
7:07
7:07
7:07

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network

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Latest snow reports near Heavens Sonohara Snow World:

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Heavens Sonohara Snow World Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall:26 Mar 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 June 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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