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 07:15 AM and sunset is at 05:16 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Fri morning. Warm air temperatures (max 21°C on Fri morning, min 17°C on Sat night). Winds decreasing (fresh winds from the SE on Fri afternoon, light winds from the WNW by Sun morning).

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Wed night. Cool air temperatures (max 19°C on Wed afternoon, min 14°C on Mon night). Winds decreasing (near gales from the N on Mon night, light winds from the SSE by Tue night).

Days 7–9 Weather Summary

Light rain (total 4mm), mostly falling on Sat morning. Warm (max 21°C on Sat night, min 16°C on Thu morning). Winds increasing (light winds from the ESE on Thu night, fresh winds from the WSW by Sat morning).

Days 10–12 Weather Summary

Light rain (total 4mm), mostly falling on Sun afternoon. Warm (max 21°C on Sun morning, min 14°C on Sun night). Winds decreasing (strong winds from the WSW on Sun morning, light winds from the NE by Tue afternoon).

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
8:03AM0.84m
8:18PM0.65m
8:40AM0.85m
8:57PM0.66m
9:17AM0.85m
9:36PM0.66m
9:53AM0.85m
10:16PM0.66m
10:31AM0.84m
10:57PM0.67m
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
Low Tide
2:33PM0.04m
2:11AM0.01m
3:11PM0.04m
2:50AM0.02m
3:49PM0.03m
3:29AM0.02m
4:25PM0.03m
4:10AM0.03m
5:02PM0.02m
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
Wave
height (m) 
direction
period (s) 
1.7
E
8
1.8
ESE
8
1.9
E
10
1.8
E
10
1.8
E
10
1.9
NE
10
1.8
NNE
9
1.6
NNE
9
1.3
NE
8
1.4
ENE
8
2.4
NNW
8
3
NNW
10
2.5
NNW
10
2.2
NNW
10
1.8
N
9
1.5
NNE
9
1.7
NNE
9
2.1
NW
10
2
NNW
9
1.7
NNW
8
1.5
N
9
1.2
N
9
1.2
NNE
8
1.5
WNW
6
2
WNW
8
1.8
WNW
9
1.6
WNW
8
2.3
W
7
2.5
WNW
8
3
NW
10
2.4
NW
10
2.4
NW
10
2.3
NNW
10
2.1
NNW
10
1.8
NNW
10
1.4
NNW
9
rain showers
clear
part cloud
rain showers
part cloud
cloud
part cloud
cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
rain showers
clear
part cloud
clear
part cloud
cloud
part cloud
rain showers
rain showers
clear
part cloud
light rain
part cloud
cloud
cloud
rain showers
part cloud
part cloud
part cloud
rain shwrs
clear
some clouds
rain shwrs
some clouds
cloudy
some clouds
cloudy
some clouds
clear
some clouds
clear
clear
clear
some clouds
some clouds
cloudy
rain shwrs
clear
some clouds
clear
some clouds
cloudy
some clouds
rain shwrs
rain shwrs
clear
some clouds
light rain
some clouds
cloudy
cloudy
rain shwrs
some clouds
some clouds
some clouds
 km/h
30
SE
35
SSE
30
SSW
25
NNW
25
N
10
NNE
5
WNW
15
NW
20
WNW
40
NNW
50
NNW
40
NNE
30
NE
15
ENE
15
SSW
30
WSW
35
W
35
NNW
30
NNE
20
NE
10
ESE
20
S
25
SW
35
WSW
35
WSW
30
W
35
WSW
50
WSW
45
NW
40
NNW
35
NW
35
NW
30
NNW
25
NNE
20
ENE
20
ESE
 mm 
1
1
4
2
2
3
1
max°C
21
21
21
21
19
18
18
19
19
18
17
14
15
16
17
18
19
19
17
16
16
17
19
20
20
20
21
21
21
18
14
14
15
15
15
16
Moonrise
7:05
7:57
8:44
9:25
10:01
10:33
11:02
11:30
11:58
12:28
1:01
1:40
Moonset
4:46
5:40
6:39
7:40
8:41
9:42
10:43
11:45
12:48
1:54
3:04
Sunrise
7:15
7:16
7:16
7:16
7:16
7:16
7:18
7:18
7:18
7:18
7:18
7:20
Sunset
5:16
5:16
5:17
5:17
5:19
5:19
5:20
5:21
5:21
5:22
5:22
5:22
Today's sea temperature in Great Sound Island is
22.0° C
(Statistics for 19 Dec 1981-2005 – mean: 21.4 max: 22.5 min: 20.3°C)
Issued (local time): 7 am Friday 19 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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