Sasebo Sea Conditions and Tide Table

Sasebo 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 07:18 AM and sunset is at 05:16 PM.

Days 1–3 Weather Summary

Moderate rain (total 15mm), heaviest on Sat night. Cool air temperatures (max 19°C on Sat morning, min 7°C on Sun night). Wind will be generally light.

Days 4–6 Weather Summary

Heavy rain (total 20mm), heaviest during Tue night. Cool air temperatures (max 16°C on Tue afternoon, min 6°C on Thu night). Winds increasing (calm on Tue morning, fresh winds from the NNW by Thu morning).

Days 7–9 Weather Summary

Mostly dry. Very mild (max 11°C on Sun afternoon, min 5°C on Fri night). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 10mm), heaviest on Tue night. Very mild (max 13°C on Mon afternoon, min 8°C on Mon morning). Winds increasing (calm on Mon night, strong winds from the W by Tue night).

Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
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
9:08AM2.58m
8:28PM2.46m
9:40AM2.61m
9:02PM2.48m
10:13AM2.61m
9:36PM2.48m
10:47AM2.60m
10:12PM2.44m
11:22AM2.56m
10:52PM2.38m
11:59AM2.51m
11:37PM2.28m
12:40PM2.45m
00:32AM2.17m
1:25PM2.38m
1:41AM2.07m
2:16PM2.31m
3:09AM2.03m
3:17PM2.26m
4:52AM2.12m
4:25PM2.26m
6:17AM2.32m
5:32PM2.32m
Low Tide
2:44PM1.02m
2:54AM0.09m
3:18PM1.00m
3:29AM0.08m
3:53PM1.00m
4:03AM0.10m
4:30PM1.01m
4:40AM0.17m
5:10PM1.02m
5:19AM0.28m
5:57PM1.02m
6:04AM0.44m
6:54PM0.99m
6:57AM0.64m
8:00PM0.92m
8:05AM0.85m
9:11PM0.77m
9:24AM1.02m
10:20PM0.57m
10:42AM1.10m
11:21PM0.33m
11:52AM1.11m
00:18AM0.09m
Wave
height (m) 
direction
period (s) 
0.4
SSE
3
0.6
S
3
0.5
S
4
1.1
NW
5
1.1
NW
5
0.9
NNW
5
0.9
NNE
4
0.9
NNE
4
0.5
NE
4
0.1
NE
2
0.1
W
4
0.7
S
3
1
SW
5
1
WNW
5
0.7
NW
4
1
NNW
4
1.3
NNW
5
0.9
NW
4
1.1
NNW
5
0.6
NNW
4
0.4
N
3
0.3
NE
2
0.4
NNE
3
0.4
NNE
3
0.2
ENE
2
0.2
ENE
2
0.1
NE
2
0.3
NE
2
0.4
N
3
0.2
NNW
3
0.1
NW
2
0.2
SSW
2
1.9
W
6
1.6
W
7
1.2
NW
6
0.7
NNW
5
clear
rain showers
heavy rain
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
heavy rain
rain showers
cloud
cloud
cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
part cloud
light rain
mod rain
rain showers
part cloud
part cloud
clear
rain shwrs
heavy rain
some clouds
some clouds
clear
clear
clear
clear
clear
some clouds
heavy rain
rain shwrs
cloudy
cloudy
cloudy
clear
clear
clear
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
some clouds
clear
clear
some clouds
light rain
mod rain
rain shwrs
some clouds
some clouds
 km/h
10
SE
15
S
10
SSW
20
NNW
25
N
20
NNE
20
NE
25
NE
10
ENE
10
E
10
SSE
15
SSE
15
WNW
20
NW
10
NNW
25
NNW
30
NNW
15
N
20
N
20
N
10
NE
10
NE
20
NNE
10
NE
10
ENE
10
NE
5
ENE
10
NE
15
N
5
N
5
SSE
15
SSW
40
W
25
NW
25
N
15
N
 mm 
1
14
18
2
1
6
3
max°C
19
19
17
14
11
8
12
12
9
13
16
16
16
14
13
10
10
8
7
7
5
9
10
8
10
11
9
12
13
10
13
13
13
10
11
11
Moonrise
7:34
8:24
9:08
9:46
10:20
10:50
11:18
11:45
12:13
12:43
1:18
2:01
Moonset
5:09
6:06
7:06
8:08
9:10
10:11
11:13
12:15
1:20
2:29
3:42
Sunrise
7:18
7:18
7:20
7:20
7:20
7:20
7:22
7:22
7:22
7:22
7:22
7:24
Sunset
5:16
5:16
5:17
5:17
5:19
5:19
5:20
5:20
5:21
5:22
5:22
5:22
Today's sea temperature in Sasebo is
16.4° C
(Statistics for 20 Dec 1981-2005 – mean: 19.4 max: 20.7 min: 18.0°C)
Issued (local time): 2 am Saturday 20 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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