Great Diamond Island Sea Conditions and Tide Table

Great Diamond 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 06:52 PM.

Days 1–4 Weather Summary

Mostly dry. Warm air temperatures (max 23°C on Wed afternoon, min 13°C on Tue night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Cool air temperatures (max 16°C on Sat afternoon, min 9°C on Fri night). Wind will be generally light.

Days 8–10 Weather Summary

Light rain (total 7mm), mostly falling on Thu afternoon. Very mild (max 17°C on Tue afternoon, min 9°C on Tue morning). Wind will be generally light.

Days 11–13 Weather Summary

Light rain (total 7mm), mostly falling on Thu night. Warm (max 23°C on Sun afternoon, min 13°C on Fri morning). Wind will be generally light.

Days 14–17 Weather Summary

Moderate rain (total 14mm), heaviest on Thu morning. Warm (max 25°C on Wed afternoon, min 8°C on Mon morning). Wind will be generally light.

Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Tuesday
29
Wednesday
30
Thu
1
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
PM
night
AM
PM
night
AM
PM
night
AM
PM
night
AM
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
Wave Height Map
High Tide
3:14AM2.64m
3:23PM2.83m
4:03AM2.49m
4:11PM2.71m
4:57AM2.36m
5:05PM2.62m
5:55AM2.27m
6:03PM2.56m
6:56AM2.25m
7:04PM2.56m
7:54AM2.29m
8:02PM2.61m
8:46AM2.38m
8:54PM2.69m
9:31AM2.51m
9:40PM2.78m
10:10AM2.65m
10:22PM2.87m
10:46AM2.80m
11:01PM2.94m
11:21AM2.95m
11:41PM2.99m
11:57AM3.08m
00:21AM3.00m
12:34PM3.17m
1:04AM2.97m
1:16PM3.22m
Low Tide
9:02PM0.09m
9:11AM0.37m
9:50PM0.23m
9:58AM0.52m
10:43PM0.35m
10:49AM0.64m
11:40PM0.45m
11:46AM0.71m
00:42AM0.50m
12:48PM0.73m
1:41AM0.48m
1:47PM0.67m
2:34AM0.42m
2:41PM0.57m
3:19AM0.33m
3:28PM0.44m
3:59AM0.23m
4:10PM0.28m
4:35AM0.13m
4:50PM0.13m
5:11AM0.05m
5:30PM-0.02m
5:46AM-0.00m
6:10PM-0.13m
6:24AM-0.02m
6:52PM-0.20m
7:05AM-0.01m
7:38PM-0.22m
Wave
Height (m)
Direction
Period (s)
0.5
SSW
3
0.5
SSW
4
0.7
S
4
0.7
S
4
0.5
E
8
0.4
ESE
7
0.4
ESE
7
0.4
ESE
7
0.9
N
4
0.7
NNE
4
0.4
SE
12
0.4
ESE
8
0.7
SSW
4
0.6
SSW
4
0.5
SE
11
0.4
SE
9
0.8
ENE
4
0.9
ESE
5
1
SE
7
0.9
ESE
6
0.7
ESE
6
0.6
E
7
0.4
ESE
8
0.7
ESE
8
0.7
SE
4
0.8
SSE
4
1.7
SSE
6
1.2
SSE
6
0.6
SE
6
0.7
SE
6
0.8
SE
6
0.6
SE
6
0.6
SE
6
0.8
SE
6
0.7
SE
9
0.7
SE
9
1
SE
9
1
E
7
0.9
SE
8
1
ESE
7
1
ESE
8
0.9
ESE
8
1.4
SSE
6
1.1
SSE
6
1.3
SSE
6
1.4
SSE
6
1.1
NE
4
part cloud
part cloud
clear
clear
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
cloud
cloud
clear
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
mod rain
rain showers
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
cloud
light rain
part cloud
part cloud
part cloud
rain showers
light rain
some clouds
some clouds
clear
clear
some clouds
cloudy
some clouds
some clouds
clear
clear
clear
clear
clear
cloudy
cloudy
clear
some clouds
cloudy
some clouds
clear
clear
some clouds
some clouds
cloudy
some clouds
cloudy
mod rain
rain shwrs
clear
clear
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
some clouds
cloudy
light rain
cloudy
light rain
some clouds
some clouds
some clouds
rain shwrs
light rain
km/h
10
SW
10
SSW
15
SSE
10
NNE
10
ENE
0
SE
5
WSW
10
NW
25
NNW
10
NNW
10
N
15
S
10
SW
15
SW
15
SW
10
NNW
15
ENE
10
ESE
15
NNE
15
NE
10
SE
5
N
5
E
15
SSE
15
S
15
S
30
S
10
W
0
NW
15
S
10
WSW
5
ESE
5
SSE
10
SW
10
N
15
E
15
NE
10
E
10
SE
15
S
15
SSW
10
S
15
SSW
15
SSW
20
S
15
SW
20
NNE
 mm
7
7
3
1
5
4
max °C
14
17
23
21
19
17
18
23
21
15
14
16
13
13
13
11
14
15
13
13
17
13
12
14
13
15
16
18
16
19
17
19
20
20
19
23
18
11
12
15
17
19
20
24
25
21
14
Moonrise
12:31
1:34
2:29
3:16
3:56
4:27
4:54
5:16
5:37
5:57
6:16
6:38
7:04
7:35
8:15
Moonset
9:09
9:51
10:41
11:38
12:41
1:48
2:56
4:04
5:13
6:24
7:36
8:51
10:10
11:28
12:43
Sunrise
6:20
6:20
6:22
6:22
6:24
6:26
6:26
6:28
6:28
6:30
6:31
6:33
6:33
6:35
6:35
6:37
Sunset
6:52
6:50
6:47
6:45
6:44
6:42
6:39
6:38
6:37
6:35
6:32
6:30
6:29
6:28
6:25
6:23
Today's sea temperature in Great Diamond Island is
16.5°C
(Statistics for 15 Sep 1981-2005 – mean: 15.5 max: 17.9 min: 14.0°C)
Issued (local time): 7 pm Tuesday 15 Sep 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest