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 06:33 AM and sunset is at 05:15 PM.

Days 1–3 Weather Summary

Mostly dry. Air temperatures will be below freezing (max -2°C on Thu afternoon, min -14°C on Wed night). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Icy conditions (max 2°C on Sun afternoon, min -8°C on Sat morning). Wind will be generally light.

Days 7–9 Weather Summary

A moderate fall of snow, heaviest on Thu night. Freeze-thaw conditions (max 3°C on Wed afternoon, min -4°C on Wed night). Wind will be generally light.

Days 10–12 Weather Summary

A dusting of new snow. Freeze-thaw conditions (max 2°C on Sun morning, min -14°C on Fri night). Wind will be generally light.

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
1
Sunday
2
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
3:39PM2.33m
3:52AM2.54m
4:31PM2.22m
4:44AM2.50m
5:31PM2.15m
5:43AM2.50m
6:34PM2.15m
6:44AM2.57m
7:35PM2.23m
7:42AM2.69m
8:28PM2.37m
8:35AM2.86m
9:16PM2.55m
9:24AM3.03m
10:00PM2.75m
10:11AM3.18m
10:43PM2.95m
10:57AM3.27m
11:25PM3.12m
11:44AM3.29m
00:09AM3.24m
12:33PM3.25m
00:55AM3.29m
Low Tide
9:28AM0.36m
9:36PM0.52m
10:19AM0.43m
10:26PM0.61m
11:17AM0.48m
11:22PM0.66m
12:20PM0.46m
00:23AM0.64m
1:22PM0.37m
1:23AM0.55m
2:16PM0.23m
2:18AM0.39m
3:04PM0.05m
3:09AM0.20m
3:49PM-0.12m
3:57AM-0.00m
4:31PM-0.27m
4:44AM-0.19m
5:14PM-0.37m
5:32AM-0.34m
5:57PM-0.41m
6:20AM-0.41m
6:42PM-0.36m
Wave
height (m) 
direction
period (s) 
0.2
SSE
9
0.1
SE
9
0.2
NNE
2
0.2
NNE
3
0.2
SSE
8
0.5
NE
4
0.5
NNW
3
0.5
SSE
9
0.5
SSE
9
0.3
SE
8
0.2
SSE
10
0.7
SW
4
0.8
SSW
4
0.7
SSW
5
0.4
SSW
4
0.3
ENE
2
0.2
SSE
9
0.4
SSE
3
0.5
SSE
11
1.1
SSE
10
1.1
SSE
9
1.1
SE
9
1.1
SE
9
0.9
SE
9
0.8
SE
8
0.8
SE
10
1
SE
9
1.9
SE
8
1.7
SSE
9
1.5
SSE
10
0.9
SSE
10
0.9
SE
10
1.2
S
5
1.1
SE
10
1
SE
9
0.9
SSE
9
part cloud
cloud
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
heavy snow
cloud
cloud
clear
part cloud
cloud
light snow
cloud
part cloud
cloud
some clouds
cloudy
some clouds
some clouds
cloudy
cloudy
some clouds
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
cloudy
cloudy
cloudy
some clouds
some clouds
some clouds
clear
cloudy
cloudy
heavy snow
cloudy
cloudy
clear
some clouds
cloudy
light snow
cloudy
some clouds
cloudy
 km/h
10
NW
5
WNW
10
NW
10
NNW
10
N
15
NW
20
NW
15
NNW
10
WNW
5
W
10
WSW
15
WSW
20
WSW
15
W
5
NNW
10
E
5
S
5
W
5
SSW
10
SSW
10
WSW
5
WNW
5
W
5
NW
5
SE
10
S
15
ENE
15
N
25
NW
20
WNW
5
WSW
15
S
5
SW
10
SW
15
WSW
15
NNW
 mm 
max°C
-6
-4
-7
-4
-2
-5
-2
-2
-9
-4
-2
-3
1
2
-1
0
1
0
2
2
2
2
3
-1
-1
0
0
1
1
-5
-7
-3
-2
2
2
0
Moonrise
12:50
1:56
2:59
3:56
4:44
5:23
5:54
6:20
6:43
7:04
7:26
Moonset
9:13
9:42
10:19
11:06
12:05
1:14
2:30
3:50
5:10
6:29
7:49
9:10
Sunrise
6:33
6:31
6:30
6:28
6:26
6:24
6:22
6:22
6:20
6:18
6:16
6:15
Sunset
5:15
5:16
5:19
5:20
5:21
5:22
5:23
5:24
5:25
5:28
5:29
5:30
Today's sea temperature in Great Diamond Island is 3.0 °C (Statistics for 19 Feb 1981-2005 – mean: 3.0 max: 3.9 min: 1.8°C)
Issued (local time): 12 pm Wednesday 19 Feb 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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