Koyo Sea Conditions and Tide Table

Koyo 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 4mm), mostly falling on Sun morning. Cool air temperatures (max 13°C on Sat afternoon, min 8°C on Thu night). Mainly fresh winds.

Days 5–7 Weather Summary

Heavy rain (total 33mm), heaviest during Tue night. Cool air temperatures (max 15°C on Wed afternoon, min 5°C on Mon night). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Very mild (max 11°C on Thu afternoon, min 6°C on Thu night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Very mild (max 13°C on Tue afternoon, min 6°C on Sun night). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
8:31PM2.74m
10:01AM3.25m
9:14PM2.78m
10:41AM3.34m
9:56PM2.81m
11:19AM3.37m
10:38PM2.81m
11:56AM3.36m
11:20PM2.79m
12:33PM3.30m
00:04AM2.75m
1:10PM3.21m
00:51AM2.67m
1:49PM3.10m
1:43AM2.58m
2:29PM2.97m
2:45AM2.48m
3:13PM2.83m
3:58AM2.42m
4:02PM2.71m
5:23AM2.44m
4:58PM2.61m
6:46AM2.56m
5:58PM2.55m
Low Tide
3:07AM0.30m
3:56PM1.44m
3:47AM0.20m
4:37PM1.39m
4:27AM0.16m
5:17PM1.34m
5:06AM0.19m
5:56PM1.30m
5:45AM0.27m
6:36PM1.26m
6:26AM0.42m
7:18PM1.22m
7:08AM0.62m
8:02PM1.19m
7:53AM0.86m
8:52PM1.15m
8:44AM1.12m
9:47PM1.09m
9:45AM1.36m
10:49PM1.00m
11:00AM1.56m
11:53PM0.88m
12:24PM1.66m
Wave
height (m) 
direction
period (s) 
0.2
ENE
2
0.1
NE
2
0.3
NE
2
0.4
NE
3
0.4
NE
3
0.3
NE
3
0.1
NE
2
0
W
3
0.5
N
3
0.7
N
4
0.6
NNE
4
1.2
ENE
5
1.2
ENE
4
0.6
NE
4
0.6
NE
4
0.4
NE
3
0.1
NW
2
0.6
WSW
3
0.6
NNW
4
0.6
NE
4
0.3
NE
2
0.3
NE
3
0.4
NE
3
0.4
NE
3
0.4
NE
3
0.4
NE
2
0.6
NE
4
0.9
NE
4
0.9
NE
4
0.6
ENE
4
0.4
ENE
3
0.4
NE
3
0.2
ENE
2
0
E
2
0.2
W
2
0.1
W
4
clear
part cloud
part cloud
part cloud
clear
part cloud
light rain
light rain
part cloud
clear
clear
clear
clear
clear
cloud
heavy rain
heavy rain
rain showers
clear
part cloud
clear
clear
cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
part cloud
clear
part cloud
clear
some clouds
some clouds
some clouds
clear
some clouds
light rain
light rain
some clouds
clear
clear
clear
clear
clear
cloudy
heavy rain
heavy rain
rain shwrs
clear
some clouds
clear
clear
cloudy
cloudy
cloudy
some clouds
some clouds
clear
clear
clear
clear
some clouds
cloudy
some clouds
clear
some clouds
 km/h
10
NE
10
ENE
10
E
15
NE
10
NE
10
ENE
5
NE
5
W
20
NNW
15
N
20
NNE
30
ENE
20
NE
15
NE
15
ENE
10
NNE
10
W
20
WNW
10
NW
15
NNE
10
NNE
10
NNE
10
NNE
10
E
10
NNE
20
N
20
NE
25
NNE
20
NE
10
ESE
10
NE
10
NE
10
E
0
E
10
W
10
NW
 mm 
1
3
21
11
1
max°C
10
9
12
12
12
13
13
13
13
9
10
11
7
7
9
12
14
15
8
10
11
7
8
9
8
9
11
8
9
9
9
7
9
9
12
13
Moonrise
6:30
7:25
8:15
8:59
9:36
10:09
10:39
11:06
11:32
12:00
12:29
1:04
Moonset
4:02
4:53
5:50
6:51
7:53
8:55
9:57
11:00
12:03
1:09
2:18
Sunrise
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
Sunset
5:00
5:01
5:01
5:02
5:02
5:04
5:04
5:05
5:06
5:06
5:07
5:07
Today's sea temperature in Koyo is
16.6° C
(Statistics for 18 Dec 1981-2005 – mean: 18.9 max: 20.1 min: 17.5°C)
Issued (local time): 8 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest