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Koshi Kogen resort snow
Lat Long: 37.31° N 138.89° E
Ski Japan - Niigata

Koshi Kogen Snow Forecast

Weather Forecast for Koshi Kogen at 392m altitude

Issued: 2 am 07 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 40.0mm), heaviest during Mon afternoon. Warm (max 23°C on Sun morning, min 12°C on Tue night). Wind will be generally light.

Days 4-6 weather summary:

Light rain (total 5.0mm), mostly falling on Fri afternoon. Warm (max 23°C on Fri morning, min 13°C on Wed night). Wind will be generally light.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
part cloud
light rain
cloud
part cloud
mod rain
heavy rain
light rain
light rain
rain showers
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
light rain
clear
some clouds
light rain
cloudy
some clouds
mod. rain
heavy rain
light rain
light rain
rain shwrs
clear
some clouds
some clouds
some clouds
clear
some clouds
some clouds
light rain
clear
km/h
0
S
5
SSE
5
SE
5
S
10
WNW
10
WNW
15
WNW
15
W
5
WSW
5
NW
10
NNW
5
ESE
5
WNW
10
WNW
0
S
0
W
10
NW
0
SSW
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
1
10
20
4
3
2
5
 max °C
23
22
18
22
18
15
15
15
14
20
20
15
20
21
17
23
19
16
 min °C
21
20
17
21
16
14
14
15
12
17
17
13
19
19
16
21
16
14
21
20
17
21
16
13
13
14
12
17
17
13
19
19
16
21
16
14
63
65
78
69
96
98
94
85
89
55
53
81
62
47
60
46
67
81
3950
3900
4100
4100
4050
3300
2750
3000
3550
3600
3600
3450
3300
3400
3300
3250
3250
3100
Sea lvl1000m2000m3000m4000m5000m
222117211715141513181814201917221815242117231715151612201914212016231815
Sunrise
4:24
4:22
4:22
4:22
4:22
4:22
Sunset
7:01
7:02
7:02
7:04
7:04
7:05

Avalanche information: Japan Avalanche Network


Snow Radar

Latest snow reports near Koshi Kogen:

No recent snow reports

No recent snow reports

Koshi Kogen Snow Conditions

Top snow depth:
Bottom snow depth:
Fresh snowfall depth:
Last snowfall:12 Mar 2026
Snow AlertsCreate Alert
Other resorts in Japan - Niigata are reporting: powder (0) / good piste (0)

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Snow History

Week 1 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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