Kosai-shi Sea Conditions and Tide Table

Kosai-shi 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 —.

Days 1–4 Weather Summary

Light rain (total 6mm), mostly falling on Sun afternoon. Cool air temperatures (max 16°C on Sat night, min 8°C on Mon night). Winds increasing (calm on Sat night, fresh winds from the WNW by Sun night).

Days 5–7 Weather Summary

Heavy rain (total 82mm), heaviest during Wed afternoon. Cool air temperatures (max 14°C on Thu morning, min 6°C on Fri afternoon). Winds increasing (calm on Wed night, strong winds from the NW by Fri afternoon).

Days 8–10 Weather Summary

Mostly dry. Very mild (max 11°C on Mon morning, min 4°C on Fri night). Wind will be generally light.

Days 11–13 Weather Summary

Moderate rain (total 16mm), heaviest on Mon night. Very mild (max 12°C on Tue afternoon, min 3°C on Wed night). Winds increasing (light winds from the N on Mon night, fresh winds from the WNW by Tue afternoon).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thu
1
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
PM
Wave Height Map
High Tide
6:58AM1.61m
5:32PM1.60m
7:32AM1.60m
6:07PM1.59m
8:05AM1.59m
6:44PM1.56m
8:39AM1.58m
7:24PM1.51m
9:13AM1.57m
8:11PM1.43m
9:50AM1.55m
9:08PM1.35m
10:30AM1.53m
10:26PM1.27m
11:13AM1.51m
00:10AM1.24m
12:03PM1.50m
2:00AM1.31m
12:58PM1.50m
3:28AM1.44m
1:55PM1.52m
4:33AM1.57m
2:52PM1.57m
Low Tide
11:57PM0.12m
12:17PM0.99m
00:32AM0.11m
12:51PM0.97m
1:06AM0.13m
1:27PM0.95m
1:41AM0.17m
2:08PM0.93m
2:17AM0.25m
2:53PM0.90m
2:55AM0.36m
3:46PM0.85m
3:37AM0.50m
4:48PM0.78m
4:29AM0.66m
5:57PM0.67m
5:35AM0.84m
7:09PM0.53m
7:02AM0.98m
8:16PM0.36m
8:33AM1.06m
9:15PM0.19m
9:47AM1.09m
Wave
height (m) 
direction
period (s) 
1.5
SSE
7
1.4
SE
8
1.3
SE
7
1.8
SE
8
1.8
SE
9
1.5
SE
8
1.3
ESE
9
1.5
ESE
9
1.8
ESE
7
2.2
ESE
6
2.4
SE
8
3.5
SSE
9
2.3
SSE
8
1.8
SSE
8
1.5
SSE
7
1.7
WNW
5
1.9
WNW
6
2.2
WNW
6
1.5
NW
5
1
NW
4
0.9
E
7
1
ESE
9
1.3
ESE
8
1.5
E
9
1.9
E
7
1.9
E
8
2.4
E
7
2.1
E
8
1.7
E
8
1.9
WNW
5
1.3
WNW
5
1.9
WNW
5
1.9
WNW
5
1.8
WNW
5
1.5
W
5
1.7
WSW
6
cloud
cloud
light rain
rain showers
part cloud
part cloud
part cloud
part cloud
clear
rain showers
heavy rain
heavy rain
cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
heavy rain
rain showers
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloudy
cloudy
light rain
rain shwrs
some clouds
some clouds
some clouds
some clouds
clear
rain shwrs
heavy rain
heavy rain
cloudy
cloudy
cloudy
some clouds
clear
clear
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
heavy rain
rain shwrs
clear
some clouds
cloudy
some clouds
some clouds
some clouds
some clouds
 km/h
5
NE
0
WNW
5
ENE
30
WNW
20
NW
5
NW
10
NNE
10
ENE
25
ESE
25
E
30
E
20
NE
10
WNW
20
WNW
25
NW
35
NW
30
NW
40
NW
20
NW
10
NNW
5
WNW
5
N
5
N
5
ESE
15
ENE
10
NE
25
E
10
N
20
WNW
35
WNW
25
NW
35
WNW
30
WNW
25
WNW
30
W
30
W
 mm 
5
1
1
20
61
14
2
max°C
16
16
15
13
11
12
10
11
11
11
12
13
13
14
14
11
9
9
5
8
10
8
8
9
7
11
11
10
11
12
10
6
7
3
5
6
Moonrise
7:56
8:40
9:18
9:50
10:20
10:46
11:13
11:39
12:09
12:43
1:24
2:14
Moonset
5:29
6:29
7:32
8:35
9:37
10:40
11:44
12:50
1:59
3:13
4:29
Sunrise
6:52
6:52
6:52
6:54
6:54
6:54
6:54
6:54
6:56
6:56
6:56
6:56
Sunset
4:42
4:42
4:43
4:43
4:44
4:45
4:45
4:45
4:45
4:46
4:47
4:49
Today's sea temperature in Kosai-shi is
17.6° C
(Statistics for 20 Dec 1981-2005 – mean: 19.4 max: 21.2 min: 17.8°C)
Issued (local time): 8 pm Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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