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 9mm), mostly falling on Sun morning. Cool air temperatures (max 19°C on Sat afternoon, min 8°C on Sun night). Winds increasing (calm on Fri morning, near gales from the NNW by Sun afternoon).

Days 4–6 Weather Summary

Light rain (total 7mm), mostly falling on Tue night. Cool air temperatures (max 16°C on Wed afternoon, min 8°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 12°C on Sat afternoon, min 9°C on Thu night). Winds decreasing (strong winds from the N on Thu morning, calm by Fri night).

Days 10–12 Weather Summary

Moderate rain (total 15mm), heaviest on Mon night. Very mild (max 13°C on Sun morning, min 9°C on Mon night). Winds increasing (light winds from the NW on Mon night, strong winds from the NNW by Tue night).

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
SE
4
0.5
SE
4
0.6
SE
4
0.6
SSE
4
0.5
SE
8
1.5
NNW
5
1.2
NNW
5
1.1
NNE
5
1.2
NNE
5
0.5
SE
9
0.4
SE
9
0.4
SE
9
0.6
ESE
10
1.2
SE
10
1.2
SE
10
1.4
N
5
1.1
N
4
1.1
NNE
5
0.7
SE
9
0.9
NNE
4
0.5
SE
9
0.4
SE
9
0.4
ESE
9
0.9
ESE
11
0.9
ESE
11
0.9
NNW
4
1
NNW
4
0.7
ESE
9
0.4
ESE
9
0.4
ESE
9
0.2
ESE
9
0.2
ESE
9
0.8
NW
3
1.3
N
5
part cloud
cloud
rain showers
part cloud
cloud
light rain
rain showers
clear
clear
clear
clear
clear
part cloud
cloud
rain showers
light rain
cloud
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
part cloud
rain showers
part cloud
part cloud
cloud
part cloud
rain showers
rain showers
light rain
rain showers
some clouds
cloudy
rain shwrs
some clouds
cloudy
light rain
rain shwrs
clear
clear
clear
clear
clear
some clouds
cloudy
rain shwrs
light rain
cloudy
some clouds
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
cloudy
some clouds
rain shwrs
some clouds
some clouds
cloudy
some clouds
rain shwrs
rain shwrs
light rain
rain shwrs
 km/h
5
SSE
20
SE
20
SSE
15
SSE
20
SSE
25
S
5
NNW
50
NNW
45
NNW
40
N
40
N
10
WNW
10
E
5
NNE
0
S
10
SW
30
NNW
40
NNW
40
N
40
N
30
N
30
N
15
NNW
5
SSE
20
NNW
30
N
25
NW
35
NW
35
NNW
25
NNW
25
NW
20
NNW
5
NW
10
NNW
40
NW
45
NNW
 mm 
2
3
4
6
1
2
4
3
3
3
max°C
16
17
17
18
19
18
15
11
9
9
11
11
12
12
15
15
16
12
10
11
11
9
10
11
11
12
12
13
13
12
12
13
11
10
9
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): 2 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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