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Ski Japan - Niigata

Itoigawa Seaside Valley Snow Forecast

36.94° N 137.90° E

Weather Forecast for Itoigawa Seaside Valley at 490 m altitude

Issued:
2 pm 20 Oct 2026 (local time)
Forecast update in:
 hr.  min.
Last 6 daysScroll left for last 6 daysNow
Tue
20
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
rain showers
rain showers
light rain
heavy rain
heavy rain
light rain
rain showers
clear
clear
part cloud
light rain
light rain
light rain
light rain
light rain
light rain
cloud
rain shwrs
rain shwrs
light rain
heavy rain
heavy rain
light rain
rain shwrs
clear
clear
some clouds
light rain
light rain
light rain
light rain
light rain
light rain
cloudy
km/h
5
WSW
10
SSW
15
WSW
20
W
15
W
10
NW
5
NNW
5
SE
5
SSE
5
E
5
S
5
S
0
SSW
5
W
5
NW
5
NNW
5
NE
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snow map
Snowflake cm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
 mm
6
4
1
19
11
4
2
—
—
—
1
4
5
4
2
2
—
max °C
18
19
23
20
16
10
9
9
17
17
16
16
16
16
18
17
15
min °C
18
18
22
17
11
10
9
8
14
16
15
15
16
16
17
15
15
 chill °C
18
18
22
16
10
9
9
8
14
16
15
15
16
16
17
15
15
Humid %
92
87
72
92
92
92
90
75
44
57
65
85
93
94
89
87
87
Freeze m
3800
4100
4100
4150
3250
2600
2100
3300
3500
3650
3700
3950
3950
3950
3850
3600
3550
Sea lvl1000m2000m3000m4000m5000m
1718211812988141615151515161514181824201412118171715161617201816
Sunrise
—
—
6:00
—
—
6:01
—
—
6:01
—
—
6:03
—
—
6:03
—
—
Sunset
5:06
—
—
5:04
—
—
5:02
—
—
5:01
—
—
5:00
—
—
4:59
—

Next 3 days weather summary:

Heavy rain (total 47.0mm), heaviest during Wed afternoon. Warm (max 23°C on Wed morning, min 8°C on Thu night). Wind will be generally light.

Days 4-6 weather summary:

Moderate rain (total 18.0mm), heaviest on Sat morning. Very mild (max 18°C on Sun morning, min 15°C on Fri night). Wind will be generally light.

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Avalanche information: Japan Avalanche Network

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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 3 of October 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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