Square Island Harbour Sea Conditions and Tide Table

Square Island Harbour 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 07:54 AM and sunset is at 03:30 PM.

Days 1–3 Weather Summary

A heavy fall of snow, heaviest during Thu night. Air temperatures will be below freezing (max -2°C on Thu night, min -13°C on Wed morning). Winds increasing (calm on Thu morning, stormy winds from the N by Thu night).

Days 4–6 Weather Summary

A moderate fall of snow, heaviest on Sun morning. Icy conditions (max 1°C on Sun morning, min -4°C on Sat morning). Winds decreasing (gales from the N on Sat night, light winds from the E by Mon morning).

Days 7–9 Weather Summary

A moderate fall of snow, heaviest on Tue afternoon. Freeze-thaw conditions (max 2°C on Tue afternoon, min -8°C on Thu night). Winds decreasing (strong winds from the SE on Tue morning, light winds from the NNW by Thu night).

Days 10–12 Weather Summary

A moderate fall of snow, heaviest on Fri morning. Temperatures will be below freezing (max 0°C on Fri morning, min -20°C on Sat night). Winds decreasing (fresh winds from the NNE on Fri morning, calm by Fri night).

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
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
9:23AM1.07m
10:09PM1.08m
10:02AM1.03m
10:49PM1.11m
10:45AM0.98m
11:32PM1.12m
11:35AM0.92m
00:22AM1.14m
12:35PM0.86m
1:20AM1.15m
1:49PM0.84m
2:24AM1.17m
3:07PM0.86m
3:29AM1.22m
4:17PM0.94m
4:30AM1.25m
5:22PM1.03m
5:27AM1.32m
6:19PM1.12m
6:21AM1.37m
7:12PM1.19m
7:13AM1.39m
8:03PM1.24m
Low Tide
3:25PM-0.02m
3:56AM0.33m
4:10PM0.01m
4:56AM0.33m
5:00PM0.04m
5:57AM0.30m
5:53PM0.07m
6:57AM0.23m
6:50PM0.10m
7:57AM0.14m
7:50PM0.13m
8:58AM0.04m
8:54PM0.14m
9:59AM-0.07m
10:04PM0.15m
10:58AM-0.19m
11:07PM0.11m
11:53AM-0.29m
00:05AM0.08m
12:45PM-0.35m
1:00AM0.06m
1:35PM-0.37m
1:53AM0.07m
Wave
height (m) 
direction
period (s) 
1.4
E
9
1.3
E
8
1
E
10
0.9
ESE
9
2
E
6
6.5
E
12
5
E
13
3.5
ESE
13
3
ESE
12
3
ESE
12
3.5
E
11
5
NE
11
4
ENE
11
3.5
ENE
10
3.5
ESE
11
2.5
ESE
11
2.3
ESE
11
3.5
E
12
5
ESE
14
5
ESE
12
4
ESE
12
3
ESE
11
3
ESE
11
2.2
ESE
11
1.9
ESE
10
1.8
ESE
10
1.7
ESE
10
1.7
ESE
10
3
SE
10
3
SE
11
1.9
ESE
10
1.6
ESE
9
1.1
ESE
9
0.9
E
9
1.1
ESE
10
1.3
ESE
10
part cloud
clear
clear
part cloud
light snow
heavy snow
light snow
part cloud
cloud
cloud
cloud
light snow
mod snow
light snow
cloud
cloud
cloud
part cloud
light snow
mod snow
part cloud
clear
part cloud
part cloud
cloud
clear
light snow
mod snow
light snow
snow showers
clear
clear
clear
clear
part cloud
part cloud
some clouds
clear
clear
some clouds
light snow
heavy snow
light snow
some clouds
cloudy
cloudy
cloudy
light snow
mod snow
light snow
cloudy
cloudy
cloudy
some clouds
light snow
mod snow
some clouds
clear
some clouds
some clouds
cloudy
clear
light snow
mod snow
light snow
snow shwrs
clear
clear
clear
clear
some clouds
some clouds
 km/h
15
WNW
20
W
10
WSW
5
NE
45
NE
85
N
55
WNW
30
NW
35
NNW
50
N
55
N
70
N
25
NE
25
E
25
ESE
15
N
35
WNW
30
SSW
50
SE
35
S
40
S
35
S
35
SSW
30
S
20
SSW
20
S
15
NNW
15
SSE
20
NNW
15
WSW
25
WSW
30
W
25
WSW
20
WSW
30
SW
35
SW
 mm 
max°C
-12
-11
-13
-8
-3
-2
-3
-5
-10
-3
-1
0
1
1
0
0
0
-1
1
2
1
0
-1
-2
-3
-3
-2
0
-1
-4
-17
-17
-19
-17
-10
-4
Moonrise
10:40
10:52
11:02
11:12
11:23
11:37
11:55
12:23
1:06
2:11
3:35
5:08
Moonset
8:27
9:47
11:07
12:30
1:56
3:28
5:03
6:33
7:48
8:41
9:14
Sunrise
7:54
7:54
7:54
7:54
7:54
7:54
7:54
7:54
7:54
7:54
7:54
7:54
Sunset
3:30
3:32
3:33
3:33
3:33
3:34
3:36
3:37
3:37
3:40
3:41
3:41
Today's sea temperature in Square Island Harbour is
0.4° C
(Statistics for 24 Dec 1981-2005 – mean: -0.3 max: 0.2 min: -1.0°C)
Issued (local time): 1 am Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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