Great St Lawrence Harbour (2) Sea Conditions and Tide Table

Great St Lawrence Harbour (2) 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 07:24 AM and sunset is at 07:15 PM.

Days 1–3 Weather Summary

A dusting of snow turning to light rain (total 8mm) on Tue night. Icy conditions (max 8°C on Tue night, min -5°C on Sun night). Winds increasing (light winds from the WNW on Mon morning, near gales from the S by Tue night).

Days 4–6 Weather Summary

A dusting of new snow. Air temperatures will be below freezing (max 0°C on Wed morning, min -6°C on Thu morning). Winds decreasing (fresh winds from the WNW on Wed afternoon, calm by Fri afternoon).

Days 7–9 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Sat night. Freeze-thaw conditions (max 2°C on Sat night, min -8°C on Mon night). Winds decreasing (strong winds from the SSE on Sat night, moderate winds from the NW by Mon morning).

Days 10–12 Weather Summary

Mostly dry. Freeze-thaw conditions (max 1°C on Fri morning, min -9°C on Tue morning). Winds decreasing (gales from the W on Tue night, light winds from the WSW by Wed night).

Sunday
15
Monday
16
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Monday
23
Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Mon
30
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
7:24AM1.88m
7:28PM1.67m
8:07AM2.00m
8:11PM1.84m
8:44AM2.09m
8:50PM2.01m
9:21AM2.15m
9:30PM2.14m
9:59AM2.16m
10:11PM2.23m
10:38AM2.14m
10:54PM2.27m
11:21AM2.08m
11:39PM2.25m
12:06PM1.98m
00:28AM2.19m
12:54PM1.86m
1:20AM2.11m
1:47PM1.74m
2:16AM2.01m
2:45PM1.62m
3:20AM1.92m
3:54PM1.53m
4:34AM1.86m
5:18PM1.53m
6:00AM1.88m
6:42PM1.63m
7:14AM1.96m
7:44PM1.79m
Low Tide
2:11PM1.04m
1:58AM0.95m
2:42PM0.91m
2:41AM0.78m
3:12PM0.77m
3:21AM0.63m
3:43PM0.64m
3:59AM0.51m
4:16PM0.52m
4:37AM0.44m
4:50PM0.44m
5:16AM0.41m
5:26PM0.40m
5:55AM0.45m
6:04PM0.43m
6:36AM0.54m
6:44PM0.51m
7:20AM0.69m
7:28PM0.65m
8:12AM0.87m
8:20PM0.81m
9:22AM1.03m
9:29PM0.96m
12:19PM1.08m
11:15PM1.02m
1:29PM1.00m
1:03AM0.93m
2:12PM0.91m
Wave
height (m) 
direction
period (s) 
3
SSW
9
2.3
SSW
10
2
SSW
10
1.3
SW
10
1.1
SW
10
1.3
SW
9
3
S
8
3.5
S
8
4.5
SSW
10
4
SSW
12
3.5
SSW
12
3
SSW
12
2.3
SSW
11
1.9
SSW
10
1.3
SSW
10
0.9
SSW
9
0.7
SW
9
0.6
SSW
9
0.9
SSE
4
1.6
SSE
5
3
SSE
8
2.4
S
8
2.1
S
8
1.6
SW
7
1.3
SW
7
1.6
SW
8
1.3
SSW
9
1.6
SW
8
1.9
WNW
6
1.9
WNW
6
4
W
8
3.5
W
8
2.5
WSW
10
1.6
SW
9
1.3
SW
8
1.3
NNE
5
1.6
ENE
7
1.9
NNE
6
1.4
WSW
7
1.2
SW
7
1.3
SSW
8
0.9
SE
10
1.1
SE
4
1.4
S
6
2.5
SSW
10
2.5
SSW
10
2.5
SSW
10
snow showers
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
cloud
mod rain
light snow
cloud
cloud
cloud
cloud
cloud
part cloud
cloud
part cloud
cloud
cloud
light snow
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
snow showers
snow showers
cloud
cloud
cloud
cloud
snow shwrs
some clouds
some clouds
some clouds
some clouds
some clouds
light rain
cloudy
mod rain
light snow
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
cloudy
cloudy
light snow
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
some clouds
some clouds
cloudy
cloudy
cloudy
cloudy
some clouds
clear
clear
snow shwrs
snow shwrs
cloudy
cloudy
cloudy
cloudy
 km/h
40
N
35
NW
25
NW
10
WNW
15
SW
35
SSE
40
S
45
SSW
50
S
30
WSW
30
W
25
WNW
20
NW
10
NW
5
NNW
10
NNE
0
SE
5
SSW
30
S
35
S
50
SSE
30
WNW
40
WNW
30
WNW
25
NW
35
WNW
30
NW
35
NW
40
WNW
40
WNW
60
W
55
W
25
W
25
ENE
25
NE
40
N
40
NNW
45
N
35
NW
30
NW
30
WNW
15
WSW
30
ESE
25
SSW
25
SSW
30
WSW
35
WSW
 mm 
1
7
5
max°C
-1
-1
-3
-3
-2
2
5
7
8
0
-1
-4
-5
-5
-4
-3
-2
-3
-2
0
2
0
-3
-5
-6
-6
-8
-8
-7
-4
-3
-2
-2
-1
0
0
2
2
1
0
1
-1
3
3
0
0
1
Moonrise
6:03
6:25
6:44
7:02
7:19
7:37
7:58
8:25
9:00
9:47
10:47
12:00
1:19
2:38
3:55
5:09
Moonset
3:20
4:35
5:51
7:08
8:27
9:48
11:12
12:37
1:57
3:07
4:01
4:42
5:12
5:35
5:54
Sunrise
7:24
7:22
7:20
7:18
7:16
7:15
7:13
7:11
7:09
7:07
7:05
7:03
7:01
6:58
6:56
6:54
Sunset
7:15
7:16
7:19
7:20
7:21
7:22
7:23
7:25
7:27
7:28
7:30
7:30
7:32
7:34
7:35
7:37
Today's sea temperature in Great St Lawrence Harbour (2) is
0.7° C
(Statistics for 15 Mar 1981-2005 – mean: 0.3 max: 1.6 min: -0.9°C)
Issued (local time): 2 am Sunday 15 Mar 2026
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest