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 07:18 AM and sunset is at 05:20 PM.

Days 1–3 Weather Summary

Light rain (total 7mm), mostly falling on Fri morning. Warm air temperatures (max 20°C on Sat night, min 15°C on Fri night). Winds decreasing (near gales from the WSW on Thu night, light winds from the WNW by Fri night).

Days 4–6 Weather Summary

Light rain (total 4mm), mostly falling on Tue night. Warm air temperatures (max 21°C on Tue morning, min 15°C on Sun morning). Winds decreasing (strong winds from the NNW on Sun morning, light winds from the WNW by Mon morning).

Days 7–9 Weather Summary

Light rain (total 3mm), mostly falling on Wed morning. Very mild (max 19°C on Fri night, min 16°C on Wed night). Winds decreasing (fresh winds from the NNE on Wed morning, light winds from the NNE by Fri morning).

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Sat morning. Very mild (max 19°C on Sat morning, min 14°C on Sat night). Winds decreasing (strong winds from the NW on Sat night, light winds from the ESE by Tue morning).

Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
Monday
5
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
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
10:24PM0.75m
Low Tide
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
4:24PM-0.15m
4:27AM-0.15m
Wave
height (m) 
direction
period (s) 
3.5
NNW
12
3
NNW
11
2.5
NNE
11
3
NW
9
3
NNW
11
2.5
N
11
2.1
N
11
2.3
N
11
3
NW
8
3
NNW
9
2.5
N
9
2.2
N
9
1.8
NNE
10
1.7
NNE
10
2
W
7
2.1
W
8
2.3
W
9
2.3
WNW
9
2
WNW
9
1.8
NW
9
1.5
NW
9
1.4
NW
8
1.2
NW
8
1
NNW
7
0.9
NNW
7
0.8
N
6
0.9
NE
8
2.1
WNW
7
2.3
NW
8
2.4
NW
9
2
NNW
9
1.7
NNW
8
1.4
NNW
8
1.3
NNE
8
1.3
ENE
10
1.4
ENE
10
part cloud
clear
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
thunderstorm
cloud
part cloud
clear
clear
clear
part cloud
clear
cloud
light rain
light rain
cloud
light rain
cloud
cloud
cloud
cloud
part cloud
part cloud
rain showers
cloud
part cloud
clear
clear
part cloud
cloud
part cloud
clear
some clouds
clear
some clouds
rain shwrs
some clouds
some clouds
some clouds
some clouds
risk tstorm
cloudy
some clouds
clear
clear
clear
some clouds
clear
cloudy
light rain
light rain
cloudy
light rain
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
rain shwrs
cloudy
some clouds
clear
clear
some clouds
cloudy
some clouds
clear
 km/h
35
N
15
WNW
50
WSW
45
NW
35
NNW
15
NW
20
SW
45
SW
40
NNW
40
N
40
NNW
25
NNW
15
WSW
35
SW
45
SW
45
SW
40
SW
35
WSW
35
NNE
30
NNE
25
NE
25
NNE
25
NNE
10
NE
5
N
10
W
30
W
40
W
45
NW
35
N
30
NNE
25
NE
25
E
20
ESE
20
ESE
20
ESE
 mm 
4
3
4
2
1
2
max°C
16
16
18
17
16
15
16
19
20
16
16
16
15
17
20
21
21
21
18
17
17
17
18
18
17
18
19
19
17
15
15
15
17
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
8:08
Moonset
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
5:20
5:21
5:21
5:22
5:22
5:22
5:23
5:24
5:25
5:25
5:27
5:28
Today's sea temperature in Great Sound Island is
21.6° C
(Statistics for 25 Dec 1981-2005 – mean: 21.1 max: 22.1 min: 20.1°C)
Issued (local time): 1 am Thursday 25 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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