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 05:43 AM and sunset is at 07:43 PM.

Days 1–3 Weather Summary

A light covering of new snow, mostly falling on Thu night. Icy conditions (max 4°C on Thu morning, min -10°C on Thu night). Wind will be generally light.

Days 4–6 Weather Summary

A dusting of new snow. Icy conditions (max 5°C on Mon morning, min -2°C on Tue night). Winds decreasing (fresh winds from the SSW on Sun morning, light winds from the ENE by Tue morning).

Days 7–9 Weather Summary

A light covering of new snow, mostly falling on Wed morning. Freeze-thaw conditions (max 2°C on Thu night, min -2°C on Wed morning). Wind will be generally light.

Days 10–12 Weather Summary

A moderate fall of snow, heaviest on Mon morning. Freeze-thaw conditions (max 2°C on Sat afternoon, min -1°C on Sun night). Winds decreasing (strong winds from the N on Sun night, light winds from the N by Mon night).

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Fri
1
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
6:48AM1.15m
7:09PM1.36m
7:34AM1.19m
7:51PM1.41m
8:22AM1.21m
8:36PM1.42m
9:11AM1.20m
9:23PM1.39m
10:02AM1.16m
10:12PM1.33m
10:54AM1.10m
11:03PM1.25m
11:50AM1.04m
11:58PM1.16m
12:53PM0.98m
1:00AM1.07m
2:08PM0.96m
2:12AM1.00m
3:29PM1.00m
3:32AM0.99m
4:34PM1.08m
4:40AM1.02m
5:22PM1.16m
5:35AM1.07m
6:02PM1.22m
6:22AM1.11m
6:39PM1.26m
7:05AM1.13m
7:15PM1.26m
Low Tide
12:32PM-0.05m
1:12AM-0.10m
1:17PM-0.07m
1:58AM-0.17m
2:03PM-0.05m
2:46AM-0.20m
2:52PM0.01m
3:38AM-0.18m
3:47PM0.10m
4:39AM-0.13m
4:53PM0.20m
5:45AM-0.08m
6:08PM0.27m
6:52AM-0.04m
7:20PM0.31m
7:55AM-0.02m
8:27PM0.30m
8:54AM-0.01m
9:30PM0.27m
9:51AM-0.00m
10:29PM0.20m
10:44AM0.00m
11:23PM0.11m
11:33AM0.01m
00:10AM0.02m
12:17PM0.03m
00:50AM-0.05m
12:56PM0.06m
Wave
height (m) 
direction
period (s) 
0.4
SW
2
0.5
N
3
0.2
N
3
0
E
2
0.1
NE
2
0.3
N
2
0.3
NNW
2
0.1
N
2
0.3
SSE
3
0.7
SSE
4
0.7
S
4
0.4
SSE
3
0.4
SSE
4
0.8
SSE
5
0.4
SSE
5
0.1
SE
5
0.1
NE
2
0.1
NE
2
0.2
NNE
2
0.3
NNE
3
0.1
N
2
0.1
SE
3
0.1
SE
3
0.3
ESE
3
0.5
ESE
3
0.3
E
3
0.3
N
2
0.4
NNE
3
0.5
N
3
0.5
N
3
0.7
N
4
0.9
NNE
4
1
N
4
0.9
N
4
0.4
NNE
3
0.1
S
11
0.4
NNW
3
0.2
N
3
0.2
S
2
0.5
SSE
3
0.6
SSE
4
0.2
SSE
4
1
SSE
4
1
SSE
5
0.4
SE
4
0.4
SE
3
0.2
SSE
3
cloud
part cloud
light snow
light snow
light snow
snow showers
clear
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
light snow
light snow
cloud
cloud
cloud
cloud
light snow
cloud
cloud
cloud
light snow
light snow
light snow
cloud
cloud
light snow
mod snow
cloud
light snow
light snow
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
part cloud
part cloud
cloud
cloudy
some clouds
light snow
light snow
light snow
snow shwrs
clear
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
light snow
light snow
cloudy
cloudy
cloudy
cloudy
light snow
cloudy
cloudy
cloudy
light snow
light snow
light snow
cloudy
cloudy
light snow
mod snow
cloudy
light snow
light snow
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
cloudy
some clouds
some clouds
cloudy
 km/h
25
WSW
25
N
10
NE
10
ESE
20
NE
20
NNW
20
NNW
10
SSE
20
S
30
SSW
30
SSW
15
S
15
SSE
20
SSE
10
S
10
SW
15
NE
10
N
15
NNE
20
NNE
10
E
10
ENE
10
ENE
20
E
25
ENE
15
ENE
20
N
20
N
25
N
25
N
30
NNE
40
NNE
45
N
35
N
20
NNE
10
N
20
NW
15
WNW
20
S
30
S
25
SE
15
SSW
40
S
30
S
15
SSE
20
SSE
15
SE
 mm 
max°C
4
-3
-9
-7
-5
-6
-4
-2
-1
3
4
2
5
5
5
3
0
-1
-2
-2
1
1
1
2
1
1
1
1
2
1
1
0
0
0
0
0
1
2
1
1
0
-1
1
2
0
1
1
Moonrise
5:05
5:18
5:35
5:59
6:35
7:29
8:43
10:09
11:37
1:02
2:23
3:41
4:57
6:13
7:28
8:45
Moonset
7:03
8:36
10:12
11:46
1:07
2:07
2:47
3:12
3:30
3:43
3:54
4:03
4:13
4:23
4:36
Sunrise
5:43
5:41
5:39
5:37
5:35
5:31
5:30
5:28
5:26
5:24
5:22
5:20
5:18
5:16
5:13
5:11
Sunset
7:43
7:45
7:46
7:47
7:50
7:52
7:53
7:54
7:57
7:59
8:00
8:01
8:04
8:06
8:07
8:08
Today's sea temperature in Square Island Harbour is
-1.7° C
(Statistics for 16 Apr 1981-2005 – mean: -0.6 max: 0.0 min: -1.5°C)
Issued (local time): 2 am Thursday 16 Apr 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest