Katsuura Sea Conditions and Tide Table

Katsuura 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 04:25 PM.

Days 1–4 Weather Summary

Light rain (total 2mm), mostly falling on Sat afternoon. Cool air temperatures (max 15°C on Mon morning, min 8°C on Fri night). Wind will be generally light.

Days 5–7 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Cool air temperatures (max 16°C on Mon afternoon, min 9°C on Wed morning). Wind will be generally light.

Days 8–10 Weather Summary

Heavy rain (total 25mm), heaviest during Sun morning. Very mild (max 18°C on Sun morning, min 5°C on Fri night). Winds increasing (calm on Thu afternoon, gales from the S by Sun morning).

Days 11–13 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 16°C on Sun afternoon, min 8°C on Mon night). Mainly gales.

Fri
5
Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wed
17
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
AM
Wave Height Map
High Tide
3:17PM1.52m
6:10AM1.40m
3:57PM1.55m
6:57AM1.36m
4:40PM1.53m
7:43AM1.31m
5:24PM1.48m
8:28AM1.26m
6:12PM1.38m
9:11AM1.23m
7:06PM1.25m
9:52AM1.21m
8:16PM1.11m
10:31AM1.21m
10:00PM1.00m
11:09AM1.23m
00:13AM0.96m
11:47AM1.25m
2:01AM1.02m
12:24PM1.28m
3:08AM1.10m
1:02PM1.30m
3:55AM1.18m
Low Tide
10:46PM-0.15m
10:46AM1.04m
11:31PM-0.14m
11:25AM1.05m
00:16AM-0.07m
12:08PM1.04m
1:02AM0.04m
12:57PM1.01m
1:46AM0.19m
2:00PM0.97m
2:30AM0.36m
3:22PM0.90m
3:16AM0.52m
4:55PM0.80m
4:05AM0.67m
6:15PM0.67m
7:12PM0.54m
6:14AM0.89m
7:57PM0.41m
7:22AM0.95m
8:35PM0.30m
8:18AM0.98m
Wave
height (m) 
direction
period (s) 
1.5
WSW
8
0.9
ENE
12
0.9
ENE
13
1
ENE
13
1.1
ENE
14
1.2
SW
6
0.9
ENE
14
0.8
ENE
14
0.8
ENE
13
1.4
SW
7
1.1
SW
7
1.4
ENE
6
1.4
ENE
6
1.2
E
6
1.3
ESE
10
1.1
ESE
10
1.2
ESE
9
1.4
SE
9
1.5
ESE
10
1.6
ESE
10
1.7
E
9
1.8
ENE
9
1.5
ENE
10
1.3
E
10
1.2
E
10
2.3
SSE
6
5
S
9
3.5
S
10
3.5
SW
9
1.4
SSW
9
1
SSW
8
1.2
E
15
1.1
E
14
0.9
E
13
1.1
E
12
1.3
E
14
clear
clear
part cloud
light rain
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
cloud
cloud
heavy rain
heavy rain
cloud
clear
clear
clear
clear
clear
cloud
light rain
cloud
clear
clear
some clouds
light rain
rain shwrs
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
cloudy
rain shwrs
cloudy
cloudy
some clouds
some clouds
clear
clear
some clouds
clear
some clouds
cloudy
cloudy
heavy rain
heavy rain
cloudy
clear
clear
clear
clear
clear
cloudy
light rain
cloudy
 km/h
20
NW
10
N
15
N
5
WSW
25
WSW
15
WNW
5
N
0
NE
5
WSW
20
W
25
NNE
20
NE
20
NE
15
NE
20
N
15
N
10
WNW
10
N
5
NNW
35
NNE
30
N
35
N
20
N
15
NNE
10
E
45
S
75
S
50
SW
50
WSW
0
NW
5
NE
20
NNE
20
N
10
NE
15
ENE
5
ENE
 mm 
1
1
2
11
14
2
max°C
12
10
12
13
13
13
14
13
15
16
15
12
12
12
10
12
11
12
13
12
9
9
6
9
12
17
18
16
12
12
13
11
10
12
13
13
Moonrise
4:21
5:28
6:41
7:54
9:05
10:10
11:12
12:12
1:09
2:07
3:05
4:04
Moonset
7:58
9:00
9:49
10:28
11:01
11:28
11:53
12:16
12:40
1:05
1:33
2:05
Sunrise
6:31
6:31
6:33
6:33
6:35
6:35
6:35
6:37
6:37
6:39
6:39
6:39
Sunset
4:25
4:25
4:25
4:25
4:25
4:25
4:25
4:27
4:27
4:27
4:27
4:28
Today's sea temperature in Katsuura is
21.8° C
(Statistics for 05 Dec 1981-2005 – mean: 20.1 max: 22.1 min: 18.7°C)
Issued (local time): 2 pm Friday 05 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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