Great Sound Island Sea Conditions and Tide Table

Great Sound Island 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 — and sunset is at 05:19 PM.

Days 1–4 Weather Summary

Light rain (total 6mm), mostly falling on Fri morning. Warm air temperatures (max 20°C on Wed afternoon, min 15°C on Thu morning). Winds decreasing (near gales from the NW on Wed night, light winds from the WNW by Fri night).

Days 5–7 Weather Summary

Light rain (total 3mm), mostly falling on Sat night. Warm air temperatures (max 21°C on Tue morning, min 15°C on Sun morning). Winds decreasing (near gales from the WNW on Sat night, light winds from the W by Mon morning).

Days 8–10 Weather Summary

Light rain (total 7mm), mostly falling on Tue night. Warm (max 21°C on Tue afternoon, min 16°C on Wed night). Winds decreasing (strong winds from the SW on Tue afternoon, light winds from the NNE by Thu afternoon).

Days 11–13 Weather Summary

Light rain (total 2mm), mostly falling on Fri afternoon. Very mild (max 19°C on Mon morning, min 17°C on Fri afternoon). Winds decreasing (fresh winds from the NE on Fri night, calm by Sun afternoon).

Wed
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Mon
5
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
AM
Wave Height Map
High Tide
11:11AM0.81m
11:41PM0.68m
11:54AM0.78m
00:28AM0.71m
12:43PM0.74m
1:21AM0.73m
1:37PM0.70m
2:19AM0.77m
2:37PM0.67m
3:21AM0.81m
3:40PM0.65m
4:24AM0.85m
4:45PM0.65m
5:27AM0.90m
5:48PM0.66m
6:28AM0.93m
6:49PM0.68m
7:25AM0.95m
7:46PM0.70m
8:19AM0.96m
8:41PM0.73m
9:11AM0.95m
9:33PM0.75m
10:00AM0.92m
Low Tide
5:40PM0.02m
5:41AM0.05m
6:21PM0.01m
6:35AM0.06m
7:05PM-0.00m
7:36AM0.06m
7:55PM-0.02m
8:42AM0.05m
8:50PM-0.04m
9:51AM0.03m
9:48PM-0.06m
10:59AM-0.00m
10:49PM-0.09m
12:02PM-0.04m
11:50PM-0.12m
1:02PM-0.08m
00:49AM-0.16m
1:57PM-0.12m
1:46AM-0.18m
2:48PM-0.14m
2:41AM-0.19m
3:37PM-0.16m
3:35AM-0.18m
Wave
height (m) 
direction
period (s) 
3
WNW
9
4
NW
10
3.5
NNW
12
3
NNW
11
2.5
NNE
11
3
WNW
9
3
NNW
11
2.5
NNW
11
2.1
N
10
2.2
N
10
3
NW
8
3
NNW
9
2.5
N
9
2.1
N
9
1.7
NNE
10
1.7
NNE
10
2.1
WSW
6
2.5
WSW
7
2.5
WSW
8
2.2
W
9
1.9
WNW
9
1.7
NW
9
1.5
NW
9
1.3
NW
8
1.1
NW
8
1
NW
7
1.1
NNE
5
1.3
NNE
5
1.3
NE
6
1.6
NE
6
1.4
ENE
8
1.3
ENE
9
1.5
ENE
9
1.6
ENE
9
1.3
ENE
10
1.5
ENE
10
thunderstorm
rain showers
cloud
part cloud
part cloud
rain showers
part cloud
part cloud
part cloud
light rain
thunderstorm
cloud
part cloud
clear
clear
part cloud
part cloud
clear
rain showers
thunderstorm
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
rain showers
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
risk tstorm
rain shwrs
cloudy
some clouds
some clouds
rain shwrs
some clouds
some clouds
some clouds
light rain
risk tstorm
cloudy
some clouds
clear
clear
some clouds
some clouds
clear
rain shwrs
risk tstorm
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
cloudy
rain shwrs
rain shwrs
some clouds
some clouds
some clouds
clear
clear
some clouds
some clouds
 km/h
50
WNW
55
NNW
35
N
20
NW
45
WSW
50
NW
35
NNW
15
NW
15
SSW
50
SW
50
NNW
40
NNW
35
NNW
20
NNW
20
SW
35
SW
45
SW
50
SW
45
SW
25
WSW
25
NNW
20
NW
25
N
25
NNE
25
NNE
20
NNE
35
NNE
35
NNE
30
NE
30
NNE
25
NNE
10
ENE
10
ENE
5
W
20
W
25
W
 mm 
2
1
3
1
2
1
6
1
1
max°C
20
19
15
16
18
18
17
15
16
19
20
16
16
16
15
18
20
21
21
21
18
17
17
17
17
17
17
17
18
18
18
18
18
18
18
19
Moonrise
11:02
11:30
11:58
12:28
1:01
1:40
2:28
3:25
4:32
5:45
6:58
Moonset
9:42
10:43
11:45
12:48
1:54
3:04
4:18
5:32
6:42
7:43
8:34
9:16
Sunrise
7:18
7:18
7:18
7:18
7:18
7:20
7:20
7:20
7:20
7:20
7:20
7:20
Sunset
5:19
5:20
5:21
5:21
5:22
5:22
5:22
5:23
5:24
5:25
5:25
5:27
Today's sea temperature in Great Sound Island is
21.7° C
(Statistics for 24 Dec 1981-2005 – mean: 21.2 max: 22.1 min: 20.1°C)
Issued (local time): 1 pm Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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