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 06:45 AM and sunset is at 04:31 PM.

Days 1–3 Weather Summary

Light rain (total 8mm), mostly falling on Sun night. Cool air temperatures (max 11°C on Sun night, min 3°C on Fri night). Winds decreasing (fresh winds from the NW on Fri morning, calm by Sun afternoon).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Tue morning, min 8°C on Mon morning). Winds increasing (light winds from the NNW on Mon morning, strong winds from the WSW by Mon night).

Days 7–9 Weather Summary

Mostly dry. Very mild (max 11°C on Thu afternoon, min 4°C on Fri night). Winds increasing (calm on Thu night, fresh winds from the N by Fri night).

Days 10–12 Weather Summary

Light rain (total 6mm), mostly falling on Mon morning. Very mild (max 13°C on Mon morning, min 4°C on Tue night). Winds increasing (calm on Sun morning, strong winds from the WSW by Mon afternoon).

Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
Tuesday
6
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
8:56AM1.30m
7:45PM1.16m
9:30AM1.30m
9:03PM1.05m
10:07AM1.31m
10:56PM0.99m
10:48AM1.31m
1:13AM1.03m
11:34AM1.33m
2:56AM1.14m
12:26PM1.36m
4:02AM1.25m
1:21PM1.40m
4:52AM1.33m
2:15PM1.46m
5:33AM1.37m
3:08PM1.50m
6:11AM1.38m
3:59PM1.53m
6:44AM1.36m
4:48PM1.52m
7:15AM1.34m
5:35PM1.47m
Low Tide
2:38PM0.83m
2:28AM0.43m
3:48PM0.75m
3:11AM0.59m
5:04PM0.63m
4:05AM0.75m
6:17PM0.48m
7:22PM0.31m
6:50AM1.02m
8:18PM0.15m
8:12AM1.08m
9:10PM0.02m
9:13AM1.09m
9:59PM-0.08m
10:02AM1.07m
10:45PM-0.12m
10:45AM1.03m
11:28PM-0.10m
11:27AM0.97m
00:09AM-0.03m
12:09PM0.90m
00:46AM0.09m
Wave
height (m) 
direction
period (s) 
2.5
SW
9
1.9
E
13
1.7
E
14
1.4
E
14
1.3
E
14
1.3
E
13
1.1
E
13
1
E
13
1.1
E
13
1.1
E
13
1.2
E
12
1.9
SW
6
2.2
SW
7
1.9
SW
7
1.2
SW
6
0.9
ENE
13
1.1
ENE
8
0.9
ENE
8
1.1
SW
8
1.3
WSW
8
1.3
WSW
8
1
ENE
7
1
ESE
8
1.5
NNE
6
1.1
E
9
0.9
ESE
10
0.8
E
10
0.8
E
10
0.7
E
10
1.3
SW
5
1.8
SW
6
2.5
SW
7
1.1
SW
8
1.2
SW
9
1.3
SW
8
1.1
SW
8
rain showers
cloud
clear
cloud
cloud
clear
clear
clear
rain showers
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
rain showers
rain showers
clear
part cloud
part cloud
part cloud
clear
rain shwrs
cloudy
clear
cloudy
cloudy
clear
clear
clear
rain shwrs
clear
clear
clear
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
some clouds
some clouds
some clouds
clear
some clouds
some clouds
some clouds
some clouds
clear
some clouds
rain shwrs
rain shwrs
clear
some clouds
some clouds
some clouds
clear
 km/h
35
NW
30
NNW
20
N
15
N
5
E
15
NW
15
N
10
NE
10
N
5
NNW
25
WSW
40
WSW
40
WSW
25
WSW
15
WNW
20
NNE
20
NE
15
NW
15
NNW
10
W
30
N
10
N
10
NW
30
N
15
N
10
NW
10
NNW
15
N
10
SE
30
SW
40
WSW
45
WSW
5
WNW
20
N
20
NW
30
NW
 mm 
1
7
1
5
max°C
8
7
4
5
7
7
9
10
11
10
12
12
14
14
12
11
11
11
10
11
9
7
8
4
7
7
7
8
10
12
13
12
7
5
7
4
Moonrise
10:35
11:01
11:28
11:57
12:30
1:11
2:01
3:02
4:13
5:27
6:41
7:52
Moonset
10:28
11:32
12:38
1:49
3:02
4:18
5:32
6:39
7:35
8:20
8:56
Sunrise
6:45
6:45
6:45
6:46
6:46
6:46
6:46
6:47
6:47
6:47
6:47
6:47
Sunset
4:31
4:32
4:34
4:34
4:35
4:36
4:37
4:37
4:37
4:38
4:39
4:40
Today's sea temperature in Katsuura is
19.4° C
(Statistics for 26 Dec 1981-2005 – mean: 18.8 max: 19.9 min: 17.3°C)
Issued (local time): 2 am Friday 26 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest