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 06:01 AM and sunset is at 05:07 PM.

Days 1–3 Weather Summary

Heavy rain (total 20mm), heaviest during Thu night. Warm air temperatures (max 27°C on Tue morning, min 26°C on Tue morning). Mainly fresh winds.

Days 4–6 Weather Summary

Heavy rain (total 26mm), heaviest during Sun night. Warm air temperatures (max 27°C on Fri afternoon, min 24°C on Sun night). Mainly fresh winds.

Days 7–9 Weather Summary

Heavy rain (total 32mm), heaviest during Mon morning. Warm (max 27°C on Mon afternoon, min 24°C on Wed night). Winds increasing (light winds from the ENE on Mon night, fresh winds from the NE by Tue night).

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Fri morning. Warm (max 26°C on Sat night, min 23°C on Fri morning). Mainly strong winds.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
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
11:13AM0.17m
10:18PM0.29m
11:51AM0.18m
11:04PM0.27m
12:29PM0.19m
11:57PM0.24m
1:07PM0.20m
1:04AM0.20m
1:47PM0.23m
2:28AM0.17m
2:32PM0.25m
4:06AM0.16m
3:23PM0.28m
5:35AM0.15m
4:20PM0.30m
6:44AM0.15m
5:15PM0.33m
7:39AM0.15m
6:20PM0.34m
8:24AM0.16m
7:17PM0.35m
9:06AM0.16m
8:11PM0.35m
Low Tide
4:20PM0.08m
5:55AM-0.01m
5:12PM0.08m
6:33AM0.01m
6:14PM0.08m
7:11AM0.02m
7:30PM0.06m
7:52AM0.04m
8:52PM0.04m
8:37AM0.06m
10:11PM0.01m
9:27AM0.08m
11:22PM-0.03m
10:20AM0.09m
00:25AM-0.06m
11:16AM0.09m
1:22AM-0.08m
12:12PM0.08m
2:15AM-0.09m
1:07PM0.06m
3:05AM-0.09m
2:01PM0.05m
3:51AM-0.08m
Wave
height (m) 
direction
period (s) 
1.9
ENE
7
2.1
ENE
7
2
ENE
7
2
ENE
7
2
ENE
7
2.1
ENE
7
2.1
ENE
7
1.9
ENE
7
1.8
ENE
7
1.6
ENE
7
1.6
ENE
7
1.5
ENE
6
1.6
ENE
6
1.3
ENE
6
1.1
E
6
1.1
E
6
1.3
ENE
6
1.5
E
6
1.2
E
6
1.1
E
7
0.9
E
7
0.9
E
7
1
E
7
1.4
NE
5
1.9
NNE
6
2
NNE
7
1.8
NNE
6
1.9
NNE
6
2
NNE
6
2
NNE
7
2.1
NNE
7
2.1
NNE
7
2
NE
7
1.8
ENE
7
2
ENE
8
1.9
ENE
8
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
part cloud
part cloud
clear
clear
thunderstorm
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
mod rain
thunderstorm
clear
clear
rain showers
part cloud
part cloud
part cloud
rain showers
cloud
cloud
part cloud
cloud
part cloud
risk tstorm
risk tstorm
risk tstorm
risk tstorm
some clouds
risk tstorm
clear
risk tstorm
risk tstorm
risk tstorm
risk tstorm
rain shwrs
some clouds
some clouds
clear
clear
risk tstorm
risk tstorm
risk tstorm
risk tstorm
rain shwrs
risk tstorm
mod rain
risk tstorm
clear
clear
rain shwrs
some clouds
some clouds
some clouds
rain shwrs
cloudy
cloudy
some clouds
cloudy
some clouds
 km/h
35
ENE
35
ENE
30
ENE
35
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
E
30
E
25
ENE
25
E
30
ENE
30
E
30
E
20
ESE
20
E
15
ENE
15
NE
25
NE
35
NE
35
NE
35
NNE
25
N
30
N
40
N
35
N
35
NNE
30
NNE
30
NE
35
NE
30
NE
30
ENE
 mm 
2
1
3
2
3
1
8
3
1
3
4
15
8
3
2
6
6
6
1
2
max°C
27
27
27
27
27
27
26
26
26
26
27
26
27
27
27
26
26
26
25
27
26
25
25
26
26
25
25
25
24
24
24
25
24
25
25
26
Moonrise
8:52
9:31
10:08
10:45
11:21
12:00
12:42
1:30
2:25
3:27
4:34
5:43
Moonset
8:25
9:18
10:11
11:03
11:58
12:55
1:57
3:03
4:11
5:19
6:23
Sunrise
6:01
6:01
6:01
6:03
6:03
6:03
6:03
6:03
6:05
6:05
6:05
6:05
Sunset
5:07
5:07
5:07
5:07
5:08
5:09
5:09
5:10
5:10
5:12
5:13
5:13
Today's sea temperature in Harbor Bay, Great Swan Island is
28.5° C
(Statistics for 23 Dec 1981-2005 – mean: 27.1 max: 27.7 min: 26.3°C)
Issued (local time): 11 am Tuesday 23 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest