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 — and sunset is at —.

Days 1–4 Weather Summary

Moderate rain (total 13mm), heaviest on Sun night. Cool air temperatures (max 10°C on Wed afternoon, min 3°C on Tue morning). Winds decreasing (strong winds from the NW on Sun night, calm by Mon night).

Days 5–7 Weather Summary

Mild with moderate rain (total 14mm) on Thu night. Becoming colder with a light covering of snow, mostly falling on Fri morning. Icy conditions (max 12°C on Wed night, min 0°C on Fri afternoon). Winds increasing (light winds from the NE on Thu afternoon, strong winds from the NNW by Fri morning).

Days 8–10 Weather Summary

Light rain (total 4mm), mostly falling on Tue afternoon. Mild temperatures (max 9°C on Tue afternoon, min 2°C on Sat night). Wind will be generally light.

Days 11–13 Weather Summary

Heavy rain (total 35mm), heaviest during Tue night. Very mild (max 10°C on Fri afternoon, min 5°C on Wed afternoon). Winds decreasing (strong winds from the WNW on Wed night, light winds from the ESE by Fri night).

Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Fri
2
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
AM
PM
Wave Height Map
High Tide
6:18PM0.31m
6:51PM0.30m
7:21PM0.28m
7:46PM0.25m
8:07PM0.22m
8:21PM0.19m
6:10AM0.23m
8:26PM0.18m
7:28AM0.18m
8:33PM0.19m
9:36AM0.16m
8:54PM0.21m
12:21PM0.17m
9:28PM0.25m
10:15PM0.30m
11:13PM0.35m
Low Tide
8:52PM0.30m
10:30AM0.09m
9:30PM0.30m
11:12AM0.08m
10:10PM0.27m
11:52AM0.06m
10:57PM0.24m
12:30PM0.04m
11:49PM0.20m
1:04PM0.04m
00:45AM0.15m
1:33PM0.05m
1:50AM0.11m
1:58PM0.07m
3:24AM0.07m
2:16PM0.11m
5:06AM0.04m
2:30PM0.16m
6:10AM0.01m
7:06AM-0.00m
8:02AM0.00m
Wave
height (m) 
direction
period (s) 
1.9
NW
6
2.2
NW
9
1.6
NW
8
1.1
NW
8
0.8
NNW
7
0.6
NNW
6
0.4
NNW
6
0.4
ESE
2
0.4
SE
2
0.6
SW
4
1.3
NW
7
1.2
NNW
7
2.5
W
7
3.5
NNW
9
3.5
NW
10
3.5
NW
10
2.5
NW
10
2.2
NW
10
1.4
NW
9
1
NW
8
0.7
NW
7
0.6
NNW
7
0.4
NNW
6
0.4
NW
7
0.4
NW
6
0.2
NNW
5
0.1
NW
5
1.9
WSW
6
1.8
WNW
8
2
NW
10
3.5
NW
9
2.5
NW
10
2.1
NW
10
1.4
NNW
9
0.9
NNW
8
0.7
NW
7
mod rain
cloud
cloud
cloud
clear
clear
cloud
cloud
mod rain
light rain
light rain
cloud
mod rain
light snow
light snow
cloud
light rain
cloud
cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
light rain
heavy rain
light rain
heavy rain
light rain
part cloud
part cloud
cloud
cloud
cloud
mod rain
cloudy
cloudy
cloudy
clear
clear
cloudy
cloudy
mod rain
light rain
light rain
cloudy
mod rain
light snow
light snow
cloudy
light rain
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
light rain
heavy rain
light rain
heavy rain
light rain
some clouds
some clouds
cloudy
cloudy
cloudy
 km/h
35
NW
30
NW
20
NW
5
NE
10
ESE
10
ESE
15
SE
20
SE
15
SE
10
SW
20
NNW
5
NE
45
WSW
50
NNW
50
NW
45
WNW
35
WNW
25
WNW
10
SSE
10
SE
5
SE
10
ESE
10
SE
5
ESE
15
SE
10
SSE
10
S
35
WSW
30
W
25
W
50
WNW
30
W
20
WNW
10
SE
10
SSE
5
E
 mm 
6
7
4
2
6
2
4
16
4
13
2
max°C
8
5
5
5
4
7
6
9
10
12
8
8
8
2
0
2
3
4
4
4
5
4
5
7
5
7
9
9
8
6
6
8
8
6
9
10
Moonrise
8:44
9:20
9:51
10:18
10:43
11:07
11:31
11:58
12:30
1:08
1:57
2:57
Moonset
6:13
7:17
8:22
9:27
10:32
11:38
12:47
1:59
3:15
4:33
5:48
Sunrise
6:54
6:56
6:56
6:56
6:56
6:58
6:58
6:58
6:58
6:58
6:58
6:58
Sunset
4:27
4:28
4:28
4:29
4:30
4:30
4:30
4:31
4:31
4:32
4:34
4:35
Today's sea temperature in Niigata is
15.0° C
(Statistics for 21 Dec 1981-2005 – mean: 13.7 max: 15.7 min: 11.2°C)
Issued (local time): 8 pm Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest