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 05:15 PM.

Days 1–3 Weather Summary

Heavy rain (total 55mm), heaviest during Sat night. Cool air temperatures (max 19°C on Sat morning, min 10°C on Thu morning). Wind will be generally light.

Days 4–6 Weather Summary

Moderate rain (total 12mm), heaviest on Tue night. Cool air temperatures (max 16°C on Tue afternoon, min 7°C on Mon night). Wind will be generally light.

Days 7–9 Weather Summary

Some drizzle, heaviest during Wed morning. Very mild (max 15°C on Wed morning, min 6°C on Wed night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 4mm), mostly falling on Mon night. Very mild (max 13°C on Sat afternoon, min 8°C on Sun night). Wind will be generally light.

Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
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
8:04AM2.45m
7:21PM2.36m
8:37AM2.53m
7:55PM2.41m
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
Low Tide
1:34PM1.09m
1:46AM0.22m
2:09PM1.05m
2:20AM0.14m
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
Wave
height (m) 
direction
period (s) 
0.3
NNW
3
0.2
NNW
2
0.1
SW
2
0.4
SSE
3
0.8
S
4
0.8
S
5
0.6
S
4
0.6
S
3
0.8
SSW
4
0.8
NW
4
1.1
NNW
5
0.7
NNE
4
0.8
NNE
4
1.3
NNE
4
0.6
NE
3
0.1
NE
2
0.1
E
2
0.5
S
3
1.1
WNW
4
1.3
WNW
5
1.2
NW
5
1.2
NNW
5
0.9
NNW
5
0.3
NNW
4
0.2
NNW
3
0.1
NW
2
0
W
4
0.1
E
2
0.1
NE
2
0.4
N
3
0.8
NNW
4
0.8
NW
4
0.5
NNW
4
0.2
NNE
3
0.1
SW
2
0.5
SW
3
clear
clear
clear
clear
part cloud
rain showers
part cloud
rain showers
heavy rain
part cloud
clear
part cloud
part cloud
clear
clear
clear
part cloud
rain showers
light rain
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
cloud
cloud
rain showers
clear
clear
clear
clear
some clouds
rain shwrs
some clouds
rain shwrs
heavy rain
some clouds
clear
some clouds
some clouds
clear
clear
clear
some clouds
rain shwrs
light rain
some clouds
some clouds
clear
clear
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
some clouds
cloudy
cloudy
rain shwrs
 km/h
5
NE
10
N
5
SE
10
SE
20
SSE
10
SSE
15
SE
15
S
15
SSE
15
NNW
25
NNE
20
NNE
20
NE
25
NE
10
ENE
5
E
10
ESE
15
SSE
20
WNW
25
NW
25
NNW
25
N
20
N
5
NE
5
ENE
10
NNW
0
ENE
10
ENE
5
N
10
N
20
NNW
25
NNW
10
NNE
5
ESE
5
S
10
WSW
 mm 
3
1
51
12
1
4
max°C
12
13
10
16
17
15
19
19
16
15
13
12
11
12
8
13
16
16
15
12
10
8
9
7
10
11
9
11
13
12
12
11
9
11
12
11
Moonrise
5:42
6:39
7:34
8:24
9:08
9:46
10:20
10:50
11:18
11:45
12:13
12:43
Moonset
3:33
4:18
5:09
6:06
7:06
8:08
9:10
10:11
11:13
12:15
1:20
Sunrise
7:18
7:18
7:18
7:18
7:20
7:20
7:20
7:20
7:22
7:22
7:22
7:22
Sunset
5:15
5:15
5:16
5:16
5:17
5:17
5:19
5:19
5:20
5:20
5:21
5:22
Today's sea temperature in Sasebo is
17.0° C
(Statistics for 18 Dec 1981-2005 – mean: 19.6 max: 20.7 min: 18.0°C)
Issued (local time): 2 am Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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