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 06:43 AM and sunset is at 04:30 PM.

Days 1–3 Weather Summary

Heavy rain (total 36mm), heaviest during Wed afternoon. Cool air temperatures (max 16°C on Thu morning, min 8°C on Tue morning). Winds increasing (calm on Wed morning, near gales from the WSW by Thu night).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 10°C on Sun afternoon, min 2°C on Fri night). Winds decreasing (strong winds from the NW on Fri morning, calm by Sat night).

Days 7–9 Weather Summary

Some drizzle, heaviest during Tue night. Very mild (max 15°C on Tue morning, min 9°C on Wed night). Winds increasing (calm on Mon morning, strong winds from the SW by Tue morning).

Days 10–12 Weather Summary

Light rain (total 6mm), mostly falling on Thu night. Very mild (max 10°C on Sun morning, min 2°C on Thu night). Winds decreasing (fresh winds from the N on Thu morning, calm by Sun morning).

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
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
7:17AM1.29m
5:23PM1.40m
7:50AM1.29m
6:03PM1.35m
8:22AM1.29m
6:49PM1.26m
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
Low Tide
12:05PM0.95m
00:41AM0.13m
12:48PM0.92m
1:15AM0.20m
1:39PM0.89m
1:50AM0.30m
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
Wave
height (m) 
direction
period (s) 
1.8
ESE
9
1.5
ESE
9
1.2
ESE
8
1.4
ESE
7
2.3
SSE
7
2.2
SSE
8
1.9
SSE
8
1.8
SSE
8
2.2
SW
6
2.4
SW
9
1.7
E
13
1.4
E
14
1.4
E
14
1.3
E
14
1.2
E
13
1.2
E
13
1
E
13
1
E
13
1
E
12
0.9
E
12
1.6
SW
5
1.9
SW
6
1.8
SW
6
1.7
SSE
9
1.3
ENE
16
1.2
ENE
15
1.9
SW
7
1.6
ENE
14
1.5
ENE
13
1.4
ENE
12
1.4
ESE
8
1.4
ESE
8
1.3
ESE
8
1.3
ESE
8
1.3
E
7
1.3
E
14
part cloud
part cloud
light rain
mod rain
heavy rain
light rain
light rain
cloud
part cloud
clear
part cloud
clear
cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
clear
cloud
cloud
light rain
part cloud
part cloud
part cloud
cloud
cloud
light rain
rain showers
part cloud
cloud
cloud
light rain
rain showers
some clouds
some clouds
light rain
mod rain
heavy rain
light rain
light rain
cloudy
some clouds
clear
some clouds
clear
cloudy
cloudy
some clouds
clear
clear
clear
some clouds
clear
clear
cloudy
cloudy
light rain
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
rain shwrs
some clouds
cloudy
cloudy
light rain
rain shwrs
 km/h
25
NE
15
ENE
10
E
5
ENE
25
S
10
WSW
5
W
15
WSW
45
SW
40
NW
30
NNW
15
N
20
NNE
15
N
5
ESE
10
NNW
5
N
5
N
5
NNW
10
WSW
40
SW
45
SW
40
SW
30
WSW
15
WNW
10
WNW
20
W
30
N
15
NE
15
NNW
15
NNE
10
NNE
20
N
15
NNE
15
ENE
15
NNW
 mm 
1
6
27
1
1
1
2
2
1
1
max°C
10
11
12
11
14
13
16
15
15
9
8
3
5
6
6
8
10
10
11
13
14
15
15
15
12
13
10
8
8
7
5
6
6
8
9
9
Moonrise
9:07
9:40
10:09
10:35
11:01
11:28
11:57
12:30
1:11
2:01
3:02
4:13
Moonset
7:19
8:22
9:25
10:28
11:32
12:38
1:49
3:02
4:18
5:32
6:39
Sunrise
6:43
6:43
6:43
6:45
6:45
6:45
6:46
6:46
6:46
6:46
6:47
6:47
Sunset
4:30
4:30
4:31
4:31
4:32
4:34
4:34
4:35
4:36
4:37
4:37
4:37
Today's sea temperature in Katsuura is
19.9° C
(Statistics for 23 Dec 1981-2005 – mean: 19.0 max: 20.2 min: 17.4°C)
Issued (local time): 8 am Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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