O Sima (Saeki Wan) Sea Conditions and Tide Table

O Sima (Saeki Wan) 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 07:07 AM and sunset is at 05:07 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Sat night. Cool air temperatures (max 19°C on Sat afternoon, min 9°C on Sun night). Winds increasing (calm on Fri morning, strong winds from the NW by Sun afternoon).

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Cool air temperatures (max 17°C on Wed morning, min 9°C on Mon morning). Winds increasing (calm on Tue night, strong winds from the NNW by Wed afternoon).

Days 7–9 Weather Summary

Mostly dry. Very mild (max 13°C on Sat afternoon, min 9°C on Thu morning). Winds decreasing (strong winds from the N on Thu morning, light winds from the NW by Thu night).

Days 10–12 Weather Summary

Mostly dry. Very mild (max 13°C on Wed morning, min 7°C on Mon night). Winds decreasing (strong winds from the NW on Mon afternoon, light winds from the S by Tue afternoon).

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
7:42AM1.51m
5:57PM1.47m
8:17AM1.57m
6:33PM1.47m
8:51AM1.60m
7:10PM1.46m
9:25AM1.62m
7:46PM1.44m
9:58AM1.61m
8:24PM1.41m
10:31AM1.58m
9:06PM1.38m
11:04AM1.53m
9:56PM1.34m
11:36AM1.48m
10:57PM1.28m
12:11PM1.44m
00:12AM1.24m
12:49PM1.42m
1:41AM1.22m
1:34PM1.41m
3:16AM1.26m
2:25PM1.41m
4:45AM1.36m
Low Tide
12:49PM0.93m
1:02AM0.01m
1:28PM0.91m
1:35AM-0.03m
2:06PM0.90m
2:10AM-0.04m
2:44PM0.88m
2:44AM-0.01m
3:21PM0.87m
3:20AM0.04m
3:59PM0.84m
3:57AM0.13m
4:40PM0.80m
4:37AM0.24m
5:25PM0.73m
5:21AM0.39m
6:19PM0.65m
6:13AM0.55m
7:23PM0.53m
7:18AM0.71m
8:32PM0.39m
8:38AM0.84m
9:40PM0.23m
Wave
height (m) 
direction
period (s) 
0.1
SE
8
0.5
SE
4
0.6
ESE
4
0.4
SSE
4
0.5
SSE
4
0.5
SE
4
0.4
ESE
8
1.3
NNW
4
1.1
NNW
5
1.1
NNE
5
1.2
NNE
5
0.5
SE
9
0.4
SE
9
0.4
SE
9
0.7
ESE
10
1
ESE
10
1.3
SE
9
1.3
N
5
1.3
NNE
5
1.2
NNE
5
0.6
SE
8
0.4
SE
9
0.6
N
3
0.5
ESE
10
0.6
ESE
9
0.5
ESE
9
0.4
ESE
8
0.6
NNW
3
0.8
NNW
4
0.6
N
4
0.7
NW
4
1
NNW
5
0.6
NNW
5
0.5
N
6
0.2
N
5
0.1
E
13
part cloud
cloud
rain showers
part cloud
cloud
rain showers
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
rain showers
light rain
part cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
some clouds
cloudy
rain shwrs
some clouds
cloudy
rain shwrs
some clouds
clear
clear
clear
clear
clear
some clouds
some clouds
rain shwrs
light rain
some clouds
some clouds
some clouds
some clouds
cloudy
clear
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
clear
clear
clear
clear
clear
clear
 km/h
5
SSE
20
SE
15
SE
15
SSE
20
SSE
20
S
10
NW
50
NNW
40
NNW
40
N
40
N
15
WNW
5
ESE
5
NNE
20
S
10
NNW
40
NNW
40
NNW
45
N
40
N
15
NW
15
NW
25
N
20
NNW
25
NW
25
N
20
NW
25
NW
35
NNW
30
NW
35
NW
40
NW
30
WNW
20
WNW
10
NE
10
WSW
 mm 
1
2
1
1
max°C
16
17
17
18
19
18
16
12
10
9
11
11
13
13
15
17
15
12
10
11
11
11
11
12
12
13
13
12
12
11
11
12
10
10
11
11
Moonrise
6:29
7:23
8:13
8:58
9:36
10:10
10:39
11:08
11:35
12:03
12:34
1:09
Moonset
4:09
5:00
5:57
6:57
7:59
9:00
10:01
11:03
12:06
1:10
2:19
Sunrise
7:07
7:09
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
Sunset
5:07
5:07
5:07
5:08
5:08
5:09
5:09
5:10
5:10
5:12
5:13
5:13
Today's sea temperature in O Sima (Saeki Wan) is
18.7° C
(Statistics for 19 Dec 1981-2005 – mean: 20.5 max: 21.8 min: 19.4°C)
Issued (local time): 8 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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