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 07:13 PM.

Days 1–4 Weather Summary

Some drizzle, heaviest during Wed morning. Icy conditions (max 7°C on Fri morning, min -3°C on Wed night). Wind will be generally light.

Days 5–7 Weather Summary

Moderate rain (total 10mm), heaviest on Sat afternoon. Icy conditions (max 9°C on Sat morning, min -2°C on Mon afternoon). Winds increasing (calm on Fri night, strong winds from the SW by Sat night).

Days 8–10 Weather Summary

A dusting of snow turning to light rain (total 5mm) on Tue morning. Freeze-thaw conditions (max 7°C on Thu morning, min -2°C on Mon night). Winds decreasing (strong winds from the W on Mon night, calm by Wed morning).

Days 11–13 Weather Summary

A light covering of new snow, mostly falling on Fri afternoon. Freeze-thaw conditions (max 4°C on Fri afternoon, min -1°C on Fri night). Winds decreasing (strong winds from the SW on Thu night, light winds from the WSW by Fri night).

Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sun
30
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
11:20PM1.23m
11:45AM1.13m
00:53AM1.25m
1:12PM1.13m
1:59AM1.39m
2:12PM1.21m
2:48AM1.56m
3:00PM1.31m
3:37AM1.71m
3:54PM1.41m
4:38AM1.83m
5:04PM1.55m
5:52AM1.94m
6:17PM1.74m
6:57AM2.07m
7:12PM1.96m
7:46AM2.18m
7:52PM2.12m
8:26AM2.23m
8:24PM2.17m
9:02AM2.18m
8:52PM2.09m
9:36AM2.04m
Low Tide
5:20AM0.48m
5:40PM0.51m
6:30AM0.57m
6:51PM0.56m
7:49AM0.66m
7:52PM0.63m
8:59AM0.74m
8:47PM0.73m
10:06AM0.81m
9:55PM0.83m
11:10AM0.82m
11:12PM0.87m
12:05PM0.76m
00:22AM0.80m
12:50PM0.62m
1:16AM0.63m
1:29PM0.43m
1:56AM0.41m
2:04PM0.25m
2:30AM0.22m
2:39PM0.12m
2:59AM0.09m
3:15PM0.08m
Wave
height (m) 
direction
period (s) 
0.2
SSW
6
0.2
S
5
0.2
NNE
2
0.4
NE
2
0.2
SSW
9
0.3
SSW
11
0.3
SSW
10
0.3
SSW
10
0.3
SSW
10
0.2
S
9
0.2
S
8
0.3
S
8
0.4
SSW
9
0.7
SSW
9
0.7
SSW
11
0.7
SSW
10
0.5
SSW
10
0.7
SW
3
0.6
SW
10
0.4
SW
10
0.5
SSW
8
0.3
SSW
8
0.3
SSW
9
0.2
SSW
9
0.4
SSW
8
0.4
SSW
8
0.8
SSW
9
0.8
SW
11
0.7
SW
11
0.6
SSW
10
0.7
SSW
9
0.4
SSW
9
0.7
SSW
9
0.5
SW
9
0.6
SW
3
0.6
SW
3
cloud
light rain
part cloud
part cloud
part cloud
clear
cloud
cloud
cloud
light rain
cloud
mod rain
light rain
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
light snow
part cloud
part cloud
part cloud
cloud
light rain
light rain
cloud
cloud
part cloud
light snow
part cloud
part cloud
part cloud
cloud
cloud
cloud
cloudy
light rain
some clouds
some clouds
some clouds
clear
cloudy
cloudy
cloudy
light rain
cloudy
mod rain
light rain
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
light snow
some clouds
some clouds
some clouds
cloudy
light rain
light rain
cloudy
cloudy
some clouds
light snow
some clouds
some clouds
some clouds
cloudy
cloudy
cloudy
 km/h
10
SSW
10
SW
15
NNE
20
NE
20
E
15
SE
10
E
20
ESE
5
SE
5
SE
10
ESE
20
SE
20
SSW
35
SSW
35
SW
30
SW
25
W
40
W
35
W
15
SE
20
WSW
10
WSW
0
NNW
5
SSE
25
E
25
S
40
SW
45
SW
35
SW
25
SE
35
SW
20
W
35
WSW
20
WSW
30
WSW
35
W
 mm 
1.0
2.0
6
2.0
2.0
2.0
1.0
max°C
6
4
4
-2
1
4
5
7
7
8
9
9
5
6
5
3
0
-1
0
3
4
0
3
3
3
7
2
2
2
4
2
0
0
-1
0
0
Moonrise
12:11
1:19
2:25
3:24
4:14
4:54
5:25
5:50
6:10
6:29
6:47
7:07
Moonset
8:28
8:51
9:21
10:01
10:53
11:57
1:10
2:30
3:52
5:15
6:39
8:04
9:32
Sunrise
7:09
7:07
7:05
7:03
7:01
7:00
6:58
6:56
6:54
6:52
6:50
6:48
Sunset
7:13
7:14
7:15
7:16
7:19
7:20
7:21
7:22
7:23
7:24
7:27
7:28
7:30
Today's sea temperature in Saint Mary's Harbour is 1.4 °C (Statistics for 18 Mar 1981-2005 – mean: 0.5 max: 2.2 min: -0.8°C)
Issued (local time): 8 pm Tuesday 18 Mar 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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