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 06:41 AM and sunset is at 04:37 PM.

Days 1–3 Weather Summary

Mostly dry. Cool air temperatures (max 16°C on Mon morning, min 7°C on Sat morning). Winds increasing (calm on Sat morning, fresh winds from the NW by Mon afternoon).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 14°C on Thu afternoon, min 7°C on Tue night). Wind will be generally light.

Days 7–9 Weather Summary

Heavy rain (total 84mm), heaviest during Sun morning. Very mild (max 17°C on Sun morning, min 3°C on Fri night). Winds increasing (light winds from the NNE on Sat morning, strong winds from the SSW by Sun morning).

Days 10–12 Weather Summary

Mostly dry. Very mild (max 11°C on Wed morning, min 5°C on Mon night). Winds decreasing (strong winds from the WNW on Mon morning, light winds from the WNW by Tue night).

Saturday
6
Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
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
6:55AM1.77m
5:26PM1.73m
7:43AM1.72m
6:10PM1.70m
8:31AM1.64m
6:56PM1.63m
9:18AM1.56m
7:46PM1.53m
10:04AM1.49m
8:45PM1.39m
10:51AM1.45m
10:02PM1.26m
11:37AM1.43m
11:44PM1.18m
12:22PM1.42m
1:31AM1.19m
1:05PM1.43m
2:54AM1.26m
1:47PM1.44m
3:53AM1.36m
2:27PM1.47m
4:37AM1.45m
3:06PM1.49m
5:15AM1.52m
Low Tide
12:15PM1.02m
00:34AM-0.13m
12:58PM1.04m
1:21AM-0.05m
1:43PM1.04m
2:07AM0.09m
2:33PM1.03m
2:54AM0.26m
3:32PM0.99m
3:42AM0.45m
4:44PM0.94m
4:33AM0.63m
6:05PM0.84m
7:18PM0.72m
6:42AM0.91m
8:14PM0.60m
7:55AM0.99m
8:58PM0.48m
8:59AM1.02m
9:36PM0.37m
9:50AM1.03m
10:12PM0.28m
Wave
height (m) 
direction
period (s) 
0.5
SE
9
0.4
SE
9
0.4
SE
8
0.7
WNW
4
0.8
WNW
4
0.6
WNW
4
0.7
WNW
4
1.1
WNW
4
1.4
NW
5
1
NW
4
0.9
NW
4
0.9
NW
4
0.8
NW
4
0.7
NW
3
0.7
NW
3
0.8
WNW
4
0.6
ESE
10
1.3
WNW
5
1.3
NW
5
1.8
NW
5
1.6
NW
5
0.8
ENE
4
1.1
E
5
1.3
E
5
3.5
SSE
8
5
SSE
11
3.5
S
10
3.5
SSW
9
3
SSW
10
1.8
WNW
6
1.1
SE
10
1
SE
10
0.9
SE
9
1
WNW
4
1.3
WNW
5
1.4
NW
5
clear
clear
clear
clear
clear
clear
clear
cloud
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
part cloud
clear
clear
clear
part cloud
cloud
cloud
rain showers
heavy rain
heavy rain
rain showers
part cloud
clear
clear
clear
clear
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
clear
clear
clear
clear
cloudy
some clouds
some clouds
cloudy
some clouds
clear
clear
clear
some clouds
cloudy
cloudy
rain shwrs
heavy rain
heavy rain
rain shwrs
some clouds
clear
clear
clear
clear
cloudy
clear
clear
clear
 km/h
5
NNE
10
WSW
10
NNW
20
WNW
20
WNW
10
WNW
15
WNW
30
NW
30
NW
20
NW
25
NW
20
NW
10
NNW
20
WNW
15
NW
10
NW
20
WNW
25
WNW
30
NW
40
NW
20
NNW
5
NNE
15
E
25
E
40
S
30
WNW
25
WNW
40
WNW
40
WNW
25
NW
20
WNW
25
WNW
10
NW
20
WNW
30
WNW
25
WNW
 mm 
14
45
24
1
max°C
10
12
10
12
14
13
16
14
10
11
12
10
11
12
10
13
14
12
8
7
4
8
10
12
17
13
10
7
9
7
10
10
9
11
11
9
Moonrise
5:41
6:54
8:07
9:17
10:23
11:24
12:23
1:21
2:18
3:16
4:15
Moonset
8:08
9:10
9:59
10:39
11:11
11:39
12:04
12:28
12:52
1:17
1:45
2:18
Sunrise
6:41
6:43
6:43
6:43
6:45
6:46
6:46
6:47
6:48
6:48
6:48
6:50
Sunset
4:37
4:37
4:37
4:37
4:38
4:38
4:38
4:38
4:38
4:39
4:39
4:39
Today's sea temperature in Kosai-shi is
18.9° C
(Statistics for 06 Dec 1981-2005 – mean: 20.4 max: 22.2 min: 18.8°C)
Issued (local time): 8 am Saturday 06 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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