Niigata Sea Conditions and Tide Table

Niigata Sea Conditions table showing wave height, swell direction and period.

High and low tide times are also provided on the table along with the moon phase and forecast weather. Sunrise today is at 06:43 AM and sunset is at 04:23 PM.

Days 1–3 Weather Summary

Moderate rain (total 11mm), heaviest on Fri morning. Cool air temperatures (max 12°C on Sun afternoon, min 5°C on Fri morning). Winds increasing (light winds from the S on Sat morning, fresh winds from the SW by Sun night).

Days 4–6 Weather Summary

Moderate rain (total 11mm), heaviest on Mon morning. Cool air temperatures (max 13°C on Mon morning, min 6°C on Tue morning). Winds decreasing (near gales from the W on Mon morning, light winds from the W by Tue night).

Days 7–9 Weather Summary

Heavy rain (total 25mm), heaviest during Thu morning. Later becoming colder with a dusting of snow on Fri afternoon. Very mild (max 10°C on Thu morning, min 2°C on Fri morning). Winds decreasing (near gales from the WNW on Fri morning, calm by Sat morning).

Days 10–12 Weather Summary

Moderate rain (total 14mm), heaviest on Wed morning. Mild temperatures (max 9°C on Sun afternoon, min 3°C on Mon night). Winds decreasing (strong winds from the WNW on Sun night, calm by Tue morning).

Friday
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
Wave Height Map
High Tide
4:28PM0.31m
1:33AM0.41m
5:23PM0.33m
2:27AM0.44m
6:14PM0.33m
7:07PM0.32m
8:03PM0.30m
8:57PM0.27m
6:07AM0.32m
9:42PM0.25m
7:14AM0.26m
10:15PM0.23m
8:45AM0.20m
10:33PM0.21m
11:09AM0.17m
10:43PM0.21m
1:01PM0.17m
11:01PM0.23m
3:01PM0.19m
11:29PM0.26m
Low Tide
8:56AM-0.00m
8:05PM0.29m
9:48AM0.01m
8:43PM0.31m
10:43AM0.03m
9:31PM0.31m
11:38AM0.05m
10:27PM0.30m
12:32PM0.06m
11:30PM0.28m
1:25PM0.08m
00:38AM0.25m
2:18PM0.09m
2:03AM0.21m
3:10PM0.10m
4:24AM0.17m
4:01PM0.11m
5:40AM0.12m
4:44PM0.13m
6:26AM0.08m
5:17PM0.15m
6:59AM0.07m
5:47PM0.18m
Wave
height (m) 
direction
period (s) 
2.5
NW
9
2.3
NW
8
1.7
NW
8
1.3
NW
8
1.1
NW
8
0.8
NW
7
1.4
WNW
9
2.1
WSW
6
1.9
WSW
6
2.5
WSW
7
3
WNW
9
2.5
NW
8
1.9
NW
9
1.8
NW
9
1.4
NW
8
1.2
NNW
8
1
NNW
7
0.9
NW
6
1.5
WNW
6
1.4
NNW
6
1.5
NW
7
3.5
NW
9
3.5
NW
10
2.2
NW
10
1.5
NNW
9
1.1
NNW
8
0.8
NNW
7
0.6
NNW
6
1.6
NW
6
3
NW
8
2.1
NW
9
1.6
NNW
9
1
NNW
7
0.7
NNW
6
0.7
WNW
9
0.9
WNW
9
light rain
rain showers
rain showers
part cloud
clear
clear
cloud
rain showers
rain showers
mod rain
rain showers
part cloud
rain showers
cloud
part cloud
light rain
cloud
light rain
mod rain
light rain
mod rain
light rain
light snow
cloud
cloud
cloud
cloud
light rain
light rain
light rain
cloud
part cloud
clear
part cloud
part cloud
light rain
light rain
rain shwrs
rain shwrs
some clouds
clear
clear
cloudy
rain shwrs
rain shwrs
mod rain
rain shwrs
some clouds
rain shwrs
cloudy
some clouds
light rain
cloudy
light rain
mod rain
light rain
mod rain
light rain
light snow
cloudy
cloudy
cloudy
cloudy
light rain
light rain
light rain
cloudy
some clouds
clear
some clouds
some clouds
light rain
 km/h
25
NW
35
WNW
25
W
20
S
15
S
15
S
20
SSW
30
SW
30
SW
40
WSW
45
WNW
45
NW
25
NW
25
NW
15
SW
20
S
20
SW
20
S
15
WNW
25
N
25
NW
55
WNW
45
NW
25
NW
5
SSW
10
E
10
SE
20
S
35
WNW
45
WNW
30
WNW
15
WNW
10
SSE
10
SE
10
SSE
20
SSE
 mm 
3
1
1
2
4
6
1
2
1
1
8
5
10
1
1
1
4
1
1
max°C
5
7
7
7
7
6
11
12
12
13
10
9
7
8
7
9
10
10
10
7
5
3
2
4
4
4
4
8
9
7
7
8
7
6
9
9
Moonrise
4:16
5:23
6:37
7:52
9:04
10:12
11:16
12:17
1:17
2:16
3:16
Moonset
7:01
8:13
9:14
10:02
10:40
11:10
11:35
11:58
12:20
12:42
1:05
1:31
Sunrise
6:43
6:43
6:45
6:46
6:46
6:47
6:48
6:48
6:50
6:50
6:50
6:52
Sunset
4:23
4:23
4:23
4:23
4:23
4:23
4:23
4:23
4:23
4:23
4:24
4:24
Today's sea temperature in Niigata is
17.0° C
(Statistics for 05 Dec 1981-2005 – mean: 15.3 max: 17.0 min: 13.0°C)
Issued (local time): 8 am Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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