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 06:41 AM and sunset is at 04:29 PM.

Days 1–3 Weather Summary

Heavy rain (total 45mm), heaviest during Sun morning. Cool air temperatures (max 19°C on Sat afternoon, min 10°C on Fri morning). Winds increasing (light winds from the NE on Fri morning, fresh winds from the SSW by Sat night).

Days 4–6 Weather Summary

Heavy rain (total 22mm), heaviest during Wed night. Cool air temperatures (max 18°C on Wed afternoon, min 8°C on Mon night). Winds increasing (light winds from the ENE on Tue night, strong winds from the SSW by Wed night).

Days 7–9 Weather Summary

Heavy rain (total 24mm), heaviest during Sat night. Very mild (max 16°C on Sat night, min 7°C on Thu night). Winds increasing (light winds from the NE on Sat morning, strong winds from the SE by Sat night).

Days 10–12 Weather Summary

Heavy rain (total 38mm), heaviest during Sun morning. Very mild (max 15°C on Sun afternoon, min 8°C on Tue morning). Winds increasing (calm on Sun night, near gales from the WSW by Wed morning).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
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
2:55PM1.39m
5:40AM1.29m
3:32PM1.42m
6:13AM1.30m
4:09PM1.43m
6:45AM1.30m
4:45PM1.43m
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
Low Tide
9:44AM1.00m
10:22PM0.10m
10:19AM0.99m
10:57PM0.07m
10:52AM0.98m
11:32PM0.06m
11:27AM0.96m
00:07AM0.08m
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
Wave
height (m) 
direction
period (s) 
1
ENE
14
1
E
13
1.1
E
12
1.2
E
12
1.2
E
11
2
SSE
6
2.2
SSE
7
2.5
SSE
8
2.3
SSE
9
2.4
SE
9
3
E
9
2.2
E
9
1.7
ESE
9
1.6
ESE
9
1.3
ESE
8
1.5
E
7
2.2
SE
7
2.5
SSE
8
2.3
SE
8
2.5
ENE
9
2.1
ENE
10
2
E
11
2.2
E
14
2.3
E
14
2.3
E
14
2.4
E
14
3
E
13
3
E
9
3
E
10
2.5
E
10
2.3
E
11
2.2
E
12
2.5
E
12
2.4
ENE
12
2.1
E
12
2
E
13
part cloud
part cloud
part cloud
cloud
rain showers
mod rain
heavy rain
rain showers
part cloud
rain showers
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
part cloud
part cloud
clear
cloud
cloud
cloud
rain showers
cloud
heavy rain
rain showers
cloud
cloud
cloud
part cloud
rain showers
clear
clear
part cloud
some clouds
some clouds
some clouds
cloudy
rain shwrs
mod rain
heavy rain
rain shwrs
some clouds
rain shwrs
some clouds
some clouds
some clouds
cloudy
cloudy
light rain
light rain
rain shwrs
some clouds
some clouds
clear
cloudy
cloudy
cloudy
rain shwrs
cloudy
heavy rain
rain shwrs
cloudy
cloudy
cloudy
some clouds
rain shwrs
clear
clear
some clouds
 km/h
10
NE
10
SSE
20
S
25
S
25
S
35
S
35
S
30
SW
20
NW
30
NE
35
NE
25
NNE
20
NNE
20
ENE
10
ENE
30
S
35
S
30
WNW
30
NNE
25
NE
25
NE
20
NNE
25
NE
25
N
20
NNE
20
E
35
ESE
15
NW
10
WSW
15
N
10
NNW
10
NNW
20
W
30
NNW
10
NW
5
NE
 mm 
1
6
35
3
1
1
4
16
1
23
32
6
max°C
13
16
17
18
19
19
17
17
18
10
9
9
10
11
14
17
18
18
9
9
9
10
11
9
12
14
16
13
15
14
13
13
11
8
9
9
Moonrise
6:02
6:57
7:46
8:30
9:07
9:40
10:09
10:35
11:01
11:28
11:57
12:30
Moonset
3:27
4:19
5:16
6:17
7:19
8:22
9:25
10:28
11:32
12:38
1:49
Sunrise
6:41
6:41
6:41
6:43
6:43
6:43
6:43
6:45
6:45
6:45
6:46
6:46
Sunset
4:29
4:29
4:30
4:30
4:30
4:30
4:31
4:31
4:32
4:34
4:34
4:35
Today's sea temperature in Katsuura is
20.4° C
(Statistics for 19 Dec 1981-2005 – mean: 19.2 max: 20.3 min: 17.8°C)
Issued (local time): 8 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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