comScore pixel
Happo One resort snow
Lat Long: 36.70° N 137.84° E

Weather Forecast for Happo One at 1831m altitude

Issued: 8 am 20 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 71.0mm), heaviest during Sat night. Very mild (max 17°C on Sun afternoon, min 7°C on Mon night). Wind will be generally light.

Days 4-6 weather summary:

Moderate rain (total 11.0mm), heaviest on Wed morning. Very mild (max 15°C on Thu afternoon, min 7°C on Tue night). Wind will be generally light.

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
light rain
heavy rain
heavy rain
rain showers
rain showers
light rain
rain showers
light rain
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
clear
part cloud
part cloud
rain showers
light rain
heavy rain
heavy rain
rain shwrs
rain shwrs
light rain
rain shwrs
light rain
light rain
rain shwrs
rain shwrs
rain shwrs
rain shwrs
rain shwrs
clear
some clouds
some clouds
rain shwrs
km/h
10
S
10
S
15
SW
15
SW
10
WSW
20
W
20
WNW
20
WNW
10
NW
10
NW
10
NW
10
W
5
WNW
5
NW
5
SW
5
SSE
5
SSE
10
S
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
1
19
39
2
1
3
2
2
2
1
2
1
3
3
1
max °C
14
13
13
16
17
13
12
11
9
10
11
7
10
10
10
14
15
12
min °C
14
13
12
14
15
10
11
9
7
8
9
7
9
10
8
12
13
11
 chill °C
14
12
10
13
14
7
8
6
5
6
8
6
8
9
8
12
13
10
Humid %
78
97
97
87
71
91
77
74
88
78
69
90
76
78
65
49
59
84
Freeze m
4400
4500
4700
4450
4600
4350
3850
3900
3500
3300
3300
3050
3100
3350
3650
4050
3900
4200
Sea lvl1000m2000m3000m4000m5000m
14131315161212108910710109131412221918232316191713181812181712212216
Sunrise
4:28
4:30
4:30
4:30
4:30
4:31
Sunset
7:09
7:09
7:09
7:09
7:10
7:10

Days 7-16 weather summary:

Interested in the 16-day Forecast? Unlock the full forecast and many more features by becoming a Pro member.

Go pro and carve into:

  • Hourly & 16-day snow forecasts
  • Fast, ad-free browsing
  • Unlock full access on app & web
  • Exclusive member discounts
  • 20+ years of snow history
  • Snow hindcasts

Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Happo One:

No recent snow reports

No recent snow reports

Happo One Snow Conditions

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

Snow-Forecast Partner Offers

Snow History

Week 3 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.

Map placeholder