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 — and sunset is at —.

Days 1–4 Weather Summary

Light rain (total 2mm), mostly falling on Sun morning. Warm air temperatures (max 27°C on Sat night, min 26°C on Sat night). Wind will be generally light.

Days 5–7 Weather Summary

Mostly dry. Warm air temperatures (max 27°C on Tue night, min 26°C on Tue night). Mainly fresh winds.

Days 8–10 Weather Summary

Mostly dry. Warm (max 27°C on Fri night, min 27°C on Fri night). Wind will be generally light.

Days 11–13 Weather Summary

Some drizzle, heaviest during Tue morning. Warm (max 27°C on Mon night, min 26°C on Mon night). Mainly fresh winds.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Saturday
2
Sunday
3
Mon
4
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
High Tide
10:01PM0.19m
9:04AM0.34m
10:53PM0.17m
9:49AM0.34m
11:49PM0.15m
10:39AM0.33m
00:52AM0.13m
11:38AM0.31m
2:07AM0.13m
12:49PM0.28m
3:23AM0.14m
2:16PM0.25m
4:25AM0.16m
3:49PM0.23m
5:11AM0.19m
5:09PM0.22m
5:48AM0.22m
6:14PM0.22m
6:20AM0.24m
7:07PM0.21m
6:49AM0.27m
7:52PM0.20m
7:16AM0.28m
8:32PM0.19m
7:43AM0.29m
9:08PM0.19m
8:11AM0.30m
9:43PM0.18m
8:42AM0.30m
Low Tide
3:18AM0.05m
4:47PM-0.10m
3:56AM0.06m
5:43PM-0.08m
4:38AM0.07m
6:45PM-0.06m
7:53PM-0.03m
6:34AM0.09m
9:05PM-0.01m
8:07AM0.09m
10:11PM0.00m
9:48AM0.08m
11:05PM0.02m
11:11AM0.05m
11:48PM0.03m
12:16PM0.02m
00:25AM0.04m
1:09PM-0.00m
00:59AM0.05m
1:54PM-0.03m
1:31AM0.05m
2:35PM-0.04m
2:02AM0.06m
3:13PM-0.05m
2:32AM0.07m
3:50PM-0.05m
3:01AM0.07m
4:28PM-0.04m
Wave
height (m) 
direction
period (s) 
0.5
NE
5
0.5
NE
4
0.4
NE
5
0.5
NE
4
0.5
E
7
0.5
NE
3
0.5
E
7
0.6
ENE
6
0.8
NE
5
1.2
NE
6
1.5
NE
6
1.4
NE
6
1.3
NE
7
1.1
NE
7
0.9
ENE
6
0.9
ENE
6
0.8
ENE
6
0.9
SSE
4
0.8
SE
4
0.8
SE
4
0.7
SE
4
0.8
ESE
4
0.7
ESE
4
0.6
SE
4
0.8
ESE
4
0.8
ESE
4
0.7
ESE
4
0.9
ESE
4
0.8
ESE
4
0.8
ESE
4
0.9
ESE
4
0.8
ESE
5
0.8
E
5
1
E
5
1
E
5
1
E
6
1.1
E
5
1.1
E
6
1.1
E
7
1.1
E
7
1.1
E
7
1.2
E
7
1.1
E
7
1
E
7
1
E
7
1
E
7
0.9
E
7
clear
rain showers
clear
clear
thunderstorm
clear
clear
clear
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
thunderstorm
thunderstorm
clear
clear
clear
rain shwrs
clear
clear
risk tstorm
clear
clear
clear
some clouds
clear
clear
some clouds
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
risk tstorm
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
risk tstorm
risk tstorm
clear
clear
 km/h
20
ENE
15
E
15
ENE
15
ENE
15
NE
15
NE
15
ENE
15
ENE
20
ENE
25
ENE
25
ENE
25
ENE
20
E
20
SE
15
ESE
20
SE
20
SE
20
SE
25
SE
25
SE
20
ESE
25
ESE
25
ESE
20
ESE
25
ESE
25
ESE
20
ESE
30
ESE
25
E
25
E
30
ESE
25
ESE
25
ESE
30
E
25
ESE
25
E
30
ESE
25
ESE
25
ESE
30
ESE
25
E
30
E
25
E
25
ESE
20
ESE
25
ESE
20
ESE
 mm 
1
1
1
1
1
max°C
27
27
27
27
27
27
27
27
27
27
27
26
26
26
27
26
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
27
Moonrise
6:50
7:49
8:53
9:58
11:03
12:03
1:00
1:54
2:45
3:34
4:24
5:15
6:06
6:59
7:53
Moonset
8:31
9:39
10:43
11:40
12:31
1:14
1:54
2:30
3:04
3:38
4:13
4:50
5:30
6:13
7:00
Sunrise
5:16
5:16
5:15
5:15
5:13
5:13
5:13
5:11
5:11
5:11
5:11
5:09
5:09
5:09
5:07
5:07
Sunset
5:52
5:52
5:52
5:52
5:52
5:53
5:53
5:53
5:53
5:54
5:54
5:54
5:54
5:55
5:55
Today's sea temperature in Harbor Bay, Great Swan Island is
27.7° C
(Statistics for 18 Apr 1981-2005 – mean: 27.5 max: 28.4 min: 27.0°C)
Issued (local time): 11 pm Saturday 18 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest