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 07:09 AM and sunset is at 05:07 PM.

Days 1–3 Weather Summary

Light rain (total 3mm), mostly falling on Sun morning. Cool air temperatures (max 16°C on Sun morning, min 9°C on Sun night). Winds decreasing (near gales from the NNW on Sun afternoon, calm by Tue morning).

Days 4–6 Weather Summary

Some drizzle, heaviest during Wed morning. Cool air temperatures (max 17°C on Wed morning, min 6°C on Thu night). Winds increasing (light winds from the NNW on Wed morning, strong winds from the NNW by Thu night).

Days 7–9 Weather Summary

Mostly dry. Very mild (max 11°C on Mon afternoon, min 6°C on Sat night). Winds decreasing (fresh winds from the NNW on Sat afternoon, calm by Mon morning).

Days 10–12 Weather Summary

Light rain (total 4mm), mostly falling on Tue night. Very mild (max 13°C on Tue afternoon, min 2°C on Wed night). Winds increasing (calm on Tue morning, near gales from the NNW by Wed afternoon).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
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
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
3:20PM1.44m
5:58AM1.47m
4:17PM1.47m
Low Tide
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
10:00AM0.91m
10:41PM0.05m
11:13AM0.96m
11:39PM-0.09m
Wave
height (m) 
direction
period (s) 
0.5
SE
8
1.5
NNW
5
1.2
NNW
5
1
N
4
1.1
N
5
0.6
SE
9
0.4
SE
9
0.4
SE
9
0.5
SE
9
0.6
ESE
9
0.7
SE
9
0.8
ESE
9
1
NNW
4
1.1
NNW
5
1.6
N
6
1.6
NNW
5
1.3
NNW
5
0.5
N
5
0.5
NNW
3
0.6
N
4
0.6
NNW
4
0.4
SE
9
0.4
SE
9
0.3
SE
9
0.1
SE
9
0.1
SE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
9
0.2
ESE
8
1.2
NNW
5
1.6
NNW
6
1.3
NNW
5
1.1
NW
4
1.1
NNW
5
0.4
SSE
8
rain showers
part cloud
clear
clear
clear
clear
part cloud
part cloud
light rain
light rain
cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
light rain
part cloud
part cloud
part cloud
part cloud
clear
clear
rain shwrs
some clouds
clear
clear
clear
clear
some clouds
some clouds
light rain
light rain
cloudy
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
some clouds
clear
clear
clear
clear
some clouds
some clouds
some clouds
clear
clear
some clouds
light rain
some clouds
some clouds
some clouds
some clouds
clear
clear
 km/h
20
NNW
50
NNW
45
NNW
35
NNW
40
N
15
NW
5
NNW
15
SE
15
SSE
15
SSW
25
N
25
NW
35
NW
45
NW
50
NNW
50
NW
45
NNW
25
WNW
25
NW
30
NNW
30
NW
20
NW
20
N
10
NW
5
NNW
5
NE
10
NW
10
NW
10
SE
10
SW
45
NW
55
NNW
45
NW
40
NW
40
NW
20
NW
 mm 
2
1
1
4
max°C
16
12
10
10
11
10
12
14
16
17
16
15
13
12
9
6
7
6
7
8
7
8
9
9
9
11
11
11
13
13
8
6
4
6
7
6
Moonrise
8:13
8:58
9:36
10:10
10:39
11:08
11:35
12:03
12:34
1:09
1:51
2:43
Moonset
5:57
6:57
7:59
9:00
10:01
11:03
12:06
1:10
2:19
3:31
4:46
Sunrise
7:09
7:09
7:11
7:11
7:11
7:11
7:11
7:13
7:13
7:13
7:13
7:13
Sunset
5:07
5:08
5:08
5:09
5:09
5:10
5:10
5:12
5:13
5:13
5:14
5:15
Today's sea temperature in O Sima (Saeki Wan) is
18.8° C
(Statistics for 21 Dec 1981-2005 – mean: 20.4 max: 21.8 min: 19.4°C)
Issued (local time): 2 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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