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 — and sunset is at —.

Days 1–4 Weather Summary

A moderate fall of snow, heaviest on Mon afternoon. Air temperatures will be below freezing (max 0°C on Wed afternoon, min -13°C on Tue night). Winds increasing (light winds from the NW on Sun night, gales from the N by Mon night).

Days 5–7 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Fri night. Icy conditions (max 7°C on Sat morning, min -11°C on Thu night). Winds increasing (light winds from the S on Wed night, near gales from the SSE by Fri night).

Days 8–10 Weather Summary

A light covering of new snow, mostly falling on Sun night. Temperatures will be below freezing (max 0°C on Mon morning, min -12°C on Sun morning). Mainly near gales.

Days 11–13 Weather Summary

A moderate fall of snow, heaviest on Wed night. Freeze-thaw conditions (max 1°C on Wed night, min -15°C on Fri night). Mainly strong winds.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Fri
26
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
3:24AM1.01m
4:10PM0.86m
4:09AM1.03m
4:57PM0.91m
4:52AM1.05m
5:41PM0.95m
5:33AM1.08m
6:22PM0.98m
6:13AM1.10m
7:01PM1.01m
6:53AM1.11m
7:40PM1.02m
7:31AM1.11m
8:18PM1.03m
8:09AM1.11m
8:55PM1.04m
8:46AM1.09m
9:32PM1.06m
9:23AM1.07m
10:09PM1.08m
10:02AM1.03m
10:49PM1.11m
10:45AM0.98m
Low Tide
8:55PM0.24m
9:41AM0.07m
9:43PM0.27m
10:25AM0.01m
10:28PM0.28m
11:05AM-0.05m
11:10PM0.27m
11:43AM-0.09m
11:48PM0.26m
12:18PM-0.11m
00:23AM0.24m
12:53PM-0.11m
00:58AM0.24m
1:29PM-0.10m
1:35AM0.26m
2:05PM-0.08m
2:15AM0.28m
2:44PM-0.05m
3:01AM0.31m
3:25PM-0.02m
3:56AM0.33m
4:10PM0.01m
4:56AM0.33m
5:00PM0.04m
Wave
height (m) 
direction
period (s) 
1.3
NNE
12
1.5
NNE
12
2.5
NE
6
4.5
NNE
10
3.5
NE
12
3
NE
12
2.3
NE
12
2.1
NE
13
1.8
NE
13
1.6
NE
13
1.3
NE
13
1.4
NE
12
1.1
NE
13
1.3
NE
14
1.4
NE
14
3
SE
10
3.5
SE
11
2.5
SE
11
2
SE
11
1.6
E
11
1.5
NNE
14
1.5
NNE
12
1.3
ENE
10
1.6
E
11
2.5
ENE
10
1.7
ENE
10
1.4
ENE
10
1.2
ENE
9
1
ENE
9
1.3
ENE
9
3
ESE
10
3
ESE
10
2.5
ESE
11
1.6
ESE
11
1.7
ESE
11
1.6
ESE
11
part cloud
cloud
light snow
light snow
snow showers
clear
clear
cloud
cloud
light snow
cloud
part cloud
part cloud
cloud
light snow
light rain
light rain
part cloud
part cloud
clear
cloud
light snow
light snow
light snow
snow showers
clear
clear
cloud
cloud
light snow
mod snow
light snow
part cloud
cloud
cloud
part cloud
some clouds
cloudy
light snow
light snow
snow shwrs
clear
clear
cloudy
cloudy
light snow
cloudy
some clouds
some clouds
cloudy
light snow
light rain
light rain
some clouds
some clouds
clear
cloudy
light snow
light snow
light snow
snow shwrs
clear
clear
cloudy
cloudy
light snow
mod snow
light snow
some clouds
cloudy
cloudy
some clouds
 km/h
5
NNW
35
NE
55
NNE
60
NNW
40
WNW
30
W
35
W
20
SW
20
SSW
10
S
30
WNW
45
WNW
25
WSW
30
SSW
30
S
55
S
45
SSW
45
WNW
40
WNW
20
WSW
20
SW
25
SSE
10
NNE
35
NNW
45
NW
30
WNW
25
W
5
SSW
5
NE
35
ENE
5
SSW
35
SW
50
WSW
20
W
20
NW
15
WNW
 mm 
4
1
max°C
-7
-4
-2
-2
-5
-8
-12
-6
0
1
1
-1
-10
1
1
6
7
0
-6
-11
-9
-2
0
0
-4
-11
-10
-8
-5
0
1
1
-2
-7
-12
-11
Moonrise
3:26
4:40
5:55
7:06
8:10
9:02
9:40
10:07
10:26
10:40
10:52
11:02
Moonset
12:37
12:52
1:13
1:42
2:25
3:21
4:31
5:48
7:07
8:27
9:47
Sunrise
7:48
7:48
7:50
7:50
7:50
7:52
7:52
7:52
7:52
7:54
7:54
7:54
Sunset
3:26
3:27
3:27
3:27
3:27
3:29
3:29
3:30
3:30
3:30
3:32
3:33
Today's sea temperature in Square Island Harbour is
0.9° C
(Statistics for 14 Dec 1981-2005 – mean: -0.2 max: 0.3 min: -0.8°C)
Issued (local time): 7 pm Sunday 14 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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