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snowy resort
Ski Japan - Niigata

Itoigawa Seaside Valley Snow Forecast

36.94° N 137.90° E

Weather Forecast for Itoigawa Seaside Valley at 490m altitude

Issued:
2 pm 12 Sep 2026 (local time)
Forecast update in:
 hr  min
Last 6 daysScroll left for last 6 daysNow

Next 3 days weather summary:

Heavy rain (total 47.0mm), heaviest during Mon afternoon. Warm (max 25°C on Sun morning, min 20°C on Mon afternoon). Wind will be generally light.

Days 4-6 weather summary:

Heavy rain (total 56.0mm), heaviest during Wed morning. Warm (max 24°C on Fri morning, min 19°C on Tue night). Wind will be generally light.

Sat
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
rain showers
rain showers
thunderstorm
rain showers
rain showers
thunderstorm
heavy rain
mod rain
mod rain
heavy rain
heavy rain
light rain
light rain
light rain
light rain
part cloud
rain shwrs
rain shwrs
rain shwrs
t-storm
risk
rain shwrs
rain shwrs
t-storm
risk
heavy rain
mod. rain
mod. rain
heavy rain
heavy rain
light rain
light rain
light rain
light rain
some clouds
km/h
5
NE
5
S
0
S
0
NW
5
SW
5
WSW
5
NNW
5
S
0
SSW
5
W
5
SSE
5
W
0
NNE
5
E
5
ENE
10
NE
5
SE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
 mm
2
1
2
6
3
1
12
13
7
10
12
25
2
3
2
2
max °C
22
21
25
24
23
24
22
20
20
20
20
20
21
20
21
20
19
min °C
21
21
24
23
22
24
20
20
20
20
19
19
20
19
20
19
19
 chill °C
21
21
24
23
22
24
20
20
20
20
19
19
20
19
20
19
19
Humid %
92
89
79
86
87
73
94
90
91
97
93
94
86
91
93
90
89
Freeze m
4750
4800
4700
4750
4700
4650
4500
4450
4300
4250
4300
3950
4200
4150
4150
4300
4400
Sea lvl1000m2000m3000m4000m5000m
20202323212320191919181819181919182322272522262221222120212120222120
Sunrise
5:28
5:28
5:28
5:30
5:31
Sunset
6:00
6:00
5:58
5:57
5:54
5:53

Days 7-16 weather summary:

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Avalanche information: Japan Avalanche Network

Popular Itoigawa Seaside Valley Pages

Snow Radar

Latest snow reports near Itoigawa Seaside Valley:

No recent snow reports

No recent snow reports

Itoigawa Seaside Valley Snow Conditions

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

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Snow History

Week 2 of September 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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