Saint Mary's Harbour Sea Conditions and Tide Table

Saint Mary's 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 light covering of new snow, mostly falling on Mon night will be washed away by heavy rain (total 22mm) on Thu afternoon. Icy conditions (max 11°C on Thu afternoon, min -7°C on Mon night). Winds decreasing (near gales from the NW on Mon night, light winds from the S by Thu afternoon).

Days 5–7 Weather Summary

Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Fri afternoon. Icy conditions (max 7°C on Thu night, min -1°C on Fri night). Winds decreasing (strong winds from the WSW on Sat morning, calm by Sun afternoon).

Days 8–10 Weather Summary

A light covering of new snow, mostly falling on Mon morning. Temperatures will be below freezing (max 0°C on Sun night, min -6°C on Wed morning). Winds increasing (calm on Sun night, fresh winds from the WNW by Mon night).

Days 11–13 Weather Summary

Light rain (total 7mm), mostly falling on Fri afternoon. Freeze-thaw conditions (max 6°C on Fri afternoon, min -3°C on Wed night). Winds decreasing (strong winds from the SW on Thu morning, calm by Fri morning).

Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
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
10:50PM0.98m
11:08AM1.53m
00:27AM0.94m
12:30PM1.48m
1:21AM1.04m
1:27PM1.48m
1:57AM1.19m
2:13PM1.48m
2:22AM1.35m
2:54PM1.48m
2:49AM1.48m
3:46PM1.48m
3:42AM1.57m
5:08PM1.51m
5:33AM1.66m
6:13PM1.60m
6:43AM1.80m
6:50PM1.67m
7:20AM1.90m
7:14PM1.69m
7:47AM1.95m
7:34PM1.63m
8:11AM1.93m
Low Tide
3:49AM0.32m
6:07PM0.49m
7:26PM0.53m
6:26AM0.46m
8:08PM0.62m
7:31AM0.54m
8:34PM0.75m
8:27AM0.66m
9:03PM0.88m
9:29AM0.82m
9:51PM0.98m
10:47AM0.96m
10:51PM1.01m
12:02PM1.01m
11:47PM0.93m
12:49PM0.97m
00:28AM0.79m
1:17PM0.86m
00:58AM0.63m
1:40PM0.71m
1:25AM0.49m
2:06PM0.56m
Wave
height (m) 
direction
period (s) 
0.7
WNW
3
0.5
W
3
0.8
WSW
3
0.5
WSW
3
0.6
WSW
3
0.4
SSW
3
0.7
S
6
0.9
S
7
0.4
SSW
11
0.6
SSW
12
0.6
SSW
11
0.8
SSW
10
0.8
SW
12
0.8
SW
13
0.8
SW
13
0.6
SW
12
0.4
SW
10
0.2
SSW
9
0.2
SSW
8
0.4
N
2
0.4
SSW
11
0.5
SSW
10
0.4
SW
10
0.3
SSW
11
0.4
W
2
0.4
NW
2
0.2
SSW
9
0.8
SSW
4
0.8
SSW
8
0.8
SSW
7
0.5
SSW
7
0.3
SSW
7
0.6
S
4
0.8
SSW
8
0.5
SW
11
0.8
SSW
4
snow showers
part cloud
light snow
light snow
snow showers
part cloud
light rain
mod rain
mod rain
rain showers
part cloud
light snow
cloud
cloud
cloud
cloud
part cloud
cloud
light snow
light snow
light snow
part cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
part cloud
part cloud
snow shwrs
some clouds
light snow
light snow
snow shwrs
some clouds
light rain
mod rain
mod rain
rain shwrs
some clouds
light snow
cloudy
cloudy
cloudy
cloudy
some clouds
cloudy
light snow
light snow
light snow
some clouds
some clouds
some clouds
some clouds
some clouds
clear
cloudy
cloudy
cloudy
cloudy
light rain
light rain
rain shwrs
some clouds
some clouds
 km/h
45
WNW
30
WNW
45
W
35
W
35
W
25
SW
35
SSE
40
S
15
S
30
WSW
30
WSW
40
WSW
45
WSW
50
WSW
45
W
35
W
20
W
5
WSW
15
ENE
25
NNW
20
NW
35
WNW
20
WNW
20
W
25
WNW
20
NW
10
W
35
SW
40
SW
35
SW
25
WSW
10
ESE
30
SSW
45
WSW
30
W
35
SW
 mm 
2
5
6
9
2
1
3
3
max°C
3
-3
-2
-2
0
2
7
9
11
7
2
2
0
1
1
1
2
2
0
-1
-1
-2
-1
-1
-1
-5
-4
2
5
5
4
2
6
6
1
2
Moonrise
9:44
10:58
12:08
1:15
2:22
3:29
4:37
5:44
6:50
7:50
8:43
Moonset
11:37
11:57
12:14
12:29
12:43
12:59
1:17
1:39
2:06
2:41
3:26
4:22
Sunrise
7:37
7:37
7:39
7:39
7:41
7:41
7:43
7:43
7:43
7:45
7:45
7:46
Sunset
4:15
4:15
4:15
4:15
4:15
4:15
4:15
4:15
4:15
4:15
4:16
4:16
Today's sea temperature in Saint Mary's Harbour is
5.6° C
(Statistics for 08 Dec 1981-2005 – mean: 3.9 max: 5.4 min: 2.4°C)
Issued (local time): 7 pm Monday 08 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest