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 06:54 AM and sunset is at 04:27 PM.

Days 1–3 Weather Summary

Moderate rain (total 19mm), heaviest on Sun afternoon. Cool air temperatures (max 15°C on Sun morning, min 3°C on Tue morning). Winds decreasing (strong winds from the NW on Sun night, calm by Mon night).

Days 4–6 Weather Summary

Mild with moderate rain (total 19mm) on Wed afternoon. Becoming colder with a light covering of snow, mostly falling on Fri afternoon. Icy conditions (max 11°C on Wed afternoon, min 0°C on Fri night). Winds increasing (calm on Thu afternoon, strong winds from the W by Thu night).

Days 7–9 Weather Summary

Light rain (total 6mm), mostly falling on Sat morning. Mild temperatures (max 8°C on Mon night, min 1°C on Mon morning). Wind will be generally light.

Days 10–12 Weather Summary

Heavy rain (total 22mm), mainly falling on Wed night. Becoming colder with a light covering of snow, mostly falling on Thu morning. Freeze-thaw conditions (max 8°C on Wed morning, min 0°C on Thu afternoon). Winds increasing (light winds from the S on Tue night, near gales from the WNW by Thu night).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
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
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
9:47AM0.10m
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
Wave
height (m) 
direction
period (s) 
0.4
W
7
1.3
NW
5
1.7
NW
6
2.2
NW
9
1.6
NW
8
1.1
NW
8
0.8
NNW
7
0.7
NNW
7
0.4
NNW
6
0.4
SE
3
0.6
S
3
1
NW
5
0.9
NW
7
1.1
NW
9
1
NNW
8
2.5
NW
7
2.2
NNW
8
2
NW
8
2
NW
8
1.8
NW
8
1.6
NW
8
1.4
NW
8
1.2
NW
8
0.9
NNW
7
0.7
NW
7
0.6
NNW
7
0.4
NNW
6
0.6
ESE
4
0.2
NNW
5
0.5
W
7
1
W
8
1
NW
10
1.5
NW
9
2.3
NW
8
3
NW
8
4.5
WNW
10
part cloud
heavy rain
mod rain
cloud
cloud
cloud
clear
clear
cloud
light rain
mod rain
light rain
cloud
cloud
rain showers
light rain
light snow
mod snow
light rain
light rain
rain showers
part cloud
cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
mod rain
heavy rain
light snow
light snow
light snow
some clouds
heavy rain
mod rain
cloudy
cloudy
cloudy
clear
clear
cloudy
light rain
mod rain
light rain
cloudy
cloudy
rain shwrs
light rain
light snow
mod snow
light rain
light rain
rain shwrs
some clouds
cloudy
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
mod rain
heavy rain
light snow
light snow
light snow
 km/h
10
SSE
40
NNW
35
NW
30
NW
20
NW
5
NW
10
E
10
E
15
SE
15
SSE
25
SSE
25
NW
10
NW
5
NE
20
SSW
40
NNW
35
NNW
25
NNW
25
NW
25
WNW
20
WNW
15
WSW
15
SW
10
SE
10
SE
10
SE
15
SE
20
SE
10
SSE
15
SSE
15
S
10
SSW
25
NNW
35
WNW
50
WNW
60
WNW
 mm 
13
6
2
7
4
3
3
2
2
2
6
14
1
max°C
15
11
9
5
6
6
5
7
6
8
11
11
9
8
8
4
2
1
2
3
3
4
5
4
3
6
8
7
7
7
8
7
7
3
1
2
Moonrise
8:02
8:44
9:20
9:51
10:18
10:43
11:07
11:31
11:58
12:30
1:08
1:57
Moonset
5:11
6:13
7:17
8:22
9:27
10:32
11:38
12:47
1:59
3:15
4:33
Sunrise
6:54
6:54
6:56
6:56
6:56
6:56
6:58
6:58
6:58
6:58
6:58
6:58
Sunset
4:27
4:27
4:28
4:28
4:29
4:30
4:30
4:30
4:31
4:31
4:32
4:34
Today's sea temperature in Niigata is
15.1° C
(Statistics for 21 Dec 1981-2005 – mean: 13.8 max: 15.7 min: 11.7°C)
Issued (local time): 2 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest