Saint John's Harbour Sea Conditions and Tide Table

Saint John'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 07:33 AM and sunset is at 04:08 PM.

Days 1–3 Weather Summary

A dusting of snow giving way to moderate rain (total 10mm) heaviest on Mon night. Icy conditions (max 3°C on Mon night, min -8°C on Mon night). Mainly near gales.

Days 4–6 Weather Summary

Moderate rain (total 10mm), heaviest on Thu afternoon. Icy conditions (max 8°C on Thu afternoon, min -3°C on Wed morning). Mainly fresh winds.

Days 7–9 Weather Summary

Light rain (total 7mm), mostly falling on Sun morning. Freeze-thaw conditions (max 7°C on Sun morning, min -1°C on Sat morning). Winds increasing (calm on Sat night, gales from the WSW by Sun night).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Tue afternoon will be washed away by heavy rain (total 20mm) on Wed morning. Freeze-thaw conditions (max 4°C on Tue night, min -7°C on Fri morning). Mainly fresh winds.

Sunday
7
Monday
8
Tuesday
9
Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
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
Wave Height Map
High Tide
8:50AM1.51m
9:26PM1.07m
9:36AM1.46m
10:11PM1.03m
10:23AM1.38m
10:59PM1.00m
11:12AM1.28m
11:52PM0.97m
12:05PM1.17m
00:54AM0.96m
1:06PM1.07m
2:06AM0.98m
2:20PM1.00m
3:20AM1.03m
3:42PM0.96m
4:20AM1.09m
4:49PM0.95m
5:07AM1.15m
5:40PM0.96m
5:48AM1.22m
6:21PM0.98m
6:25AM1.27m
6:57PM1.01m
Low Tide
3:35PM0.22m
3:05AM0.36m
4:25PM0.29m
3:52AM0.42m
5:17PM0.36m
4:46AM0.48m
6:11PM0.43m
5:50AM0.55m
7:09PM0.49m
7:08AM0.60m
8:07PM0.53m
8:32AM0.61m
9:02PM0.56m
9:48AM0.59m
9:52PM0.56m
10:51AM0.55m
10:36PM0.56m
11:42AM0.50m
11:16PM0.54m
12:24PM0.46m
11:53PM0.52m
1:02PM0.42m
00:28AM0.49m
Wave
height (m) 
direction
period (s) 
2.5
NNE
13
2.5
NNE
14
2.4
NNE
14
2.4
NNE
14
2.3
NNE
14
3
NNE
14
3
NNE
14
2.5
NNE
14
2.5
NNE
14
1.9
NNE
13
1.7
NNE
13
2
NNE
15
2.3
NNE
14
2.5
NNE
15
2.5
NNE
14
2.2
NNE
14
2.1
NNE
14
1.9
NE
14
1.5
NNE
13
1.2
NNE
13
0.9
NNE
12
1.7
ENE
9
2.1
ENE
11
2.5
S
9
1.7
NNE
12
2.1
N
12
2.5
NNE
13
1.8
N
12
1.6
NNE
12
1.8
NNE
12
1.9
NNE
13
2.1
NNE
13
2.4
ENE
12
2.2
NE
13
1.9
NE
13
1.8
NE
13
clear
clear
part cloud
cloud
light snow
snow showers
clear
part cloud
clear
cloud
part cloud
light rain
cloud
mod rain
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
mod rain
rain showers
part cloud
part cloud
part cloud
part cloud
cloud
light snow
light snow
heavy rain
cloud
part cloud
cloud
part cloud
part cloud
clear
clear
some clouds
cloudy
light snow
snow shwrs
clear
some clouds
clear
cloudy
some clouds
light rain
cloudy
mod rain
some clouds
cloudy
cloudy
cloudy
cloudy
cloudy
cloudy
mod rain
rain shwrs
some clouds
some clouds
some clouds
some clouds
cloudy
light snow
light snow
heavy rain
cloudy
some clouds
cloudy
some clouds
some clouds
 km/h
20
NW
25
WNW
20
W
15
W
30
E
55
WNW
40
WNW
35
W
30
W
15
WSW
15
SW
10
SSE
25
SSE
30
SW
30
WSW
30
WSW
30
WSW
30
W
20
W
10
W
20
ESE
30
S
45
SSW
55
W
30
WNW
25
WNW
20
W
5
NNE
30
E
10
SSW
20
W
35
NW
30
WSW
25
WSW
25
WSW
25
WNW
 mm 
10
4
6
6
1
9
11
max°C
-4
-3
-1
-2
-2
3
-7
-4
-4
-2
0
3
5
8
6
3
2
0
0
0
0
7
4
2
1
1
0
-2
-1
4
4
1
0
0
1
-1
Moonrise
6:57
8:20
9:39
10:53
12:04
1:12
2:19
3:27
4:35
5:43
6:50
Moonset
10:37
11:11
11:35
11:55
12:11
12:25
12:39
12:54
1:12
1:33
1:59
2:34
Sunrise
7:33
7:35
7:35
7:37
7:37
7:39
7:39
7:41
7:41
7:41
7:43
7:43
Sunset
4:08
4:08
4:08
4:08
4:08
4:08
4:08
4:08
4:08
4:09
4:09
4:09
Today's sea temperature in Saint John's Harbour is
4.7° C
(Statistics for 07 Dec 1981-2005 – mean: 3.2 max: 4.4 min: 1.6°C)
Issued (local time): 7 am Sunday 07 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
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