Harbor Bay, Great Swan Island Sea Conditions and Tide Table

Harbor Bay, Great Swan 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 05:58 AM and sunset is at 05:38 PM.

Days 1–3 Weather Summary

Light rain (total 2mm), mostly falling on Mon morning. Warm air temperatures (max 26°C on Sat afternoon, min 21°C on Mon night). Winds increasing (light winds from the ENE on Sun afternoon, strong winds from the NNE by Mon afternoon).

Days 4–6 Weather Summary

Light rain (total 5mm), mostly falling on Wed night. Warm air temperatures (max 26°C on Thu afternoon, min 21°C on Tue morning). Mainly fresh winds.

Days 7–9 Weather Summary

Light rain (total 2mm), mostly falling on Fri afternoon. Warm (max 26°C on Sat morning, min 25°C on Fri morning). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 14mm), heaviest on Tue afternoon. Warm (max 26°C on Mon morning, min 25°C on Mon morning). Winds increasing (light winds from the NE on Mon morning, strong winds from the ENE by Wed night).

Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
1
Monday
2
Tuesday
3
Wednesday
4
Thursday
5
Friday
6
Saturday
7
Sun
8
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
PM
Wave Height Map
High Tide
10:45AM0.25m
11:48PM0.16m
11:21AM0.26m
00:51AM0.13m
12:06PM0.27m
2:18AM0.10m
1:03PM0.26m
4:12AM0.09m
2:21PM0.26m
5:40AM0.10m
3:55PM0.26m
6:31AM0.11m
5:19PM0.27m
7:09AM0.13m
6:25PM0.27m
7:42AM0.16m
7:20PM0.28m
8:12AM0.18m
8:07PM0.27m
8:40AM0.20m
8:51PM0.25m
9:07AM0.22m
9:32PM0.23m
9:33AM0.23m
10:11PM0.20m
9:58AM0.24m
10:50PM0.18m
10:26AM0.25m
Low Tide
5:59PM-0.06m
5:35AM0.02m
7:01PM-0.05m
6:10AM0.04m
8:14PM-0.05m
6:52AM0.06m
9:38PM-0.04m
7:53AM0.07m
11:03PM-0.05m
9:22AM0.08m
00:13AM-0.05m
10:52AM0.06m
1:07AM-0.05m
12:07PM0.04m
1:49AM-0.05m
1:09PM0.02m
2:26AM-0.05m
2:04PM-0.01m
2:58AM-0.04m
2:54PM-0.03m
3:28AM-0.03m
3:41PM-0.04m
3:57AM-0.01m
4:26PM-0.05m
4:25AM0.01m
5:10PM-0.05m
4:52AM0.02m
5:55PM-0.04m
Wave
height (m) 
direction
period (s) 
1.3
E
7
1.3
ESE
7
1.3
ESE
8
1.1
E
8
1
E
8
1
E
8
1.2
ESE
8
2.4
NNE
7
3.5
N
9
3
N
8
2.5
NNE
8
2.1
NNE
7
1.7
NE
7
1.6
ENE
7
1.8
ENE
7
1.5
ENE
7
1.3
ENE
7
1.3
E
7
1.3
E
8
1.1
E
8
1.1
E
8
1
E
8
1
E
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
0.9
ESE
8
1
E
8
1.1
E
8
1.9
NE
7
2.5
NE
8
3
NE
8
3
NE
8
3
ENE
8
2.5
ENE
8
2.5
ENE
8
2.3
ENE
8
2.2
ENE
8
2.1
ENE
8
1.9
ENE
8
1.9
ENE
8
2.1
ENE
7
1.9
ENE
7
2
ENE
7
clear
clear
clear
clear
clear
clear
rain showers
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
clear
clear
part cloud
thunderstorm
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
rain showers
clear
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
rain shwrs
light rain
cloudy
some clouds
some clouds
some clouds
some clouds
some clouds
risk tstorm
risk tstorm
clear
clear
some clouds
risk tstorm
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
risk tstorm
risk tstorm
risk tstorm
risk tstorm
risk tstorm
rain shwrs
risk tstorm
rain shwrs
clear
some clouds
clear
clear
clear
some clouds
clear
clear
 km/h
30
ESE
30
ESE
30
ESE
20
E
15
ENE
25
NNE
30
NNE
45
NNE
40
NNE
35
NNE
30
NNE
25
NE
25
ENE
30
ENE
35
E
25
ESE
25
ESE
25
ESE
25
ESE
20
E
25
E
25
ESE
25
E
25
E
25
E
20
ENE
20
ENE
15
NE
20
NNE
20
NE
25
NE
25
NE
35
ENE
40
ENE
40
ENE
45
ENE
40
ENE
35
ENE
35
ENE
40
ENE
35
ENE
30
ENE
30
ENE
30
ENE
35
ENE
30
ENE
30
ENE
 mm 
1
1
4
1
2
2
3
2
2
4
2
2
3
max°C
25
26
25
25
26
25
25
23
22
21
22
23
23
24
25
25
26
25
25
25
25
26
26
26
26
26
25
26
26
25
26
25
25
25
25
25
25
25
25
25
25
25
25
25
26
25
25
Moonrise
8:39
9:22
10:11
11:05
12:05
1:08
2:13
3:16
4:16
5:12
6:06
6:57
7:48
8:39
9:30
Moonset
9:42
10:44
11:47
12:53
1:56
2:55
3:48
4:35
5:16
5:55
6:30
7:05
7:40
8:17
8:56
Sunrise
5:58
5:58
5:58
5:56
5:56
5:56
5:54
5:54
5:54
5:52
5:52
5:52
5:50
5:50
5:50
5:48
Sunset
5:38
5:38
5:39
5:39
5:39
5:40
5:40
5:40
5:42
5:42
5:42
5:42
5:43
5:43
5:43
5:44
Today's sea temperature in Harbor Bay, Great Swan Island is
26.9° C
(Statistics for 21 Feb 1981-2005 – mean: 26.5 max: 27.2 min: 25.7°C)
Issued (local time): 11 am Saturday 21 Feb 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest