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 07:45 AM and sunset is at 04:10 PM.

Days 1–3 Weather Summary

Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Tue night. Icy conditions (max 6°C on Sun night, min -5°C on Tue afternoon). Mainly fresh winds.

Days 4–6 Weather Summary

A moderate fall of snow, heaviest on Thu afternoon. Turning milder with moderate rain (total 18mm), heaviest on Fri night. Icy conditions (max 8°C on Fri night, min -6°C on Wed morning). Winds increasing (calm on Wed night, gales from the SSE by Fri night).

Days 7–9 Weather Summary

Mostly dry. Freeze-thaw conditions (max 5°C on Sat morning, min -9°C on Sat night). Winds decreasing (strong winds from the WNW on Sat morning, light winds from the WSW by Sun night).

Days 10–12 Weather Summary

A light covering of new snow, mostly falling on Tue morning. Becoming milder with moderate rain (total 11mm) heaviest on Tue afternoon. Freeze-thaw conditions (max 3°C on Tue afternoon, min -2°C on Tue night). Winds decreasing (near gales from the ESE on Tue morning, light winds from the ESE by Wed afternoon).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
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
Wave Height Map
High Tide
8:10AM1.37m
8:37PM1.06m
8:45AM1.38m
9:11PM1.07m
9:19AM1.37m
9:47PM1.08m
9:55AM1.35m
10:26PM1.08m
10:34AM1.32m
11:09PM1.08m
11:17AM1.26m
11:59PM1.09m
12:07PM1.19m
00:56AM1.11m
1:08PM1.11m
2:02AM1.15m
2:23PM1.05m
3:14AM1.21m
3:50PM1.01m
4:25AM1.29m
5:10PM1.02m
5:27AM1.37m
6:16PM1.05m
Low Tide
2:42PM0.38m
2:10AM0.44m
3:16PM0.38m
2:46AM0.44m
3:51PM0.39m
3:23AM0.46m
4:29PM0.40m
4:06AM0.48m
5:09PM0.42m
4:55AM0.52m
5:55PM0.44m
5:57AM0.55m
6:46PM0.47m
7:14AM0.57m
7:44PM0.50m
8:38AM0.56m
8:47PM0.52m
9:59AM0.51m
9:50PM0.51m
11:10AM0.44m
10:50PM0.50m
12:13PM0.37m
11:48PM0.47m
Wave
height (m) 
direction
period (s) 
1
SE
9
1.3
SE
10
1.8
SSE
7
1.6
SE
9
1.5
SE
9
1.6
SE
9
1.6
NNE
10
1.4
NNE
9
1.8
NNE
9
2
NNE
10
1.8
NNE
10
1.5
NNE
10
2.1
NE
6
3.5
NE
8
5
E
11
3
E
11
2.4
E
11
4
SE
8
2.5
SE
11
2.2
ESE
11
1.8
ESE
11
1.4
E
10
1.2
ESE
10
1
E
10
1.1
E
10
1.2
E
10
1.8
SE
6
4
ESE
9
4
ESE
10
2.3
ESE
10
1.9
E
10
1.7
E
10
2.2
E
12
3.5
NNE
10
4.5
ENE
13
3
NE
12
cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
snow showers
part cloud
part cloud
part cloud
light snow
mod snow
snow showers
clear
part cloud
heavy rain
cloud
part cloud
part cloud
cloud
clear
part cloud
part cloud
cloud
cloud
light snow
light rain
part cloud
part cloud
cloud
light snow
light snow
light snow
part cloud
cloudy
cloudy
light rain
light rain
cloudy
cloudy
cloudy
cloudy
snow shwrs
some clouds
some clouds
some clouds
light snow
mod snow
snow shwrs
clear
some clouds
heavy rain
cloudy
some clouds
some clouds
cloudy
clear
some clouds
some clouds
cloudy
cloudy
light snow
light rain
some clouds
some clouds
cloudy
light snow
light snow
light snow
some clouds
 km/h
15
SW
25
SSW
35
S
20
W
20
N
25
NNW
25
NW
25
WNW
25
NW
15
NW
5
NW
10
NE
40
NE
55
N
50
NW
25
W
15
SSW
65
SSE
40
WNW
30
NW
30
WNW
25
WNW
15
W
10
SW
20
S
25
SSE
35
SE
55
ESE
40
S
25
S
15
S
10
NNE
45
NW
55
WNW
50
WNW
30
W
 mm 
2
1
18
5
3
3
max°C
0
1
6
4
3
-1
-3
-3
-4
-5
-4
-2
-2
0
-1
-2
-1
8
5
-4
-8
-6
-6
-4
-1
-1
0
0
3
0
-1
-1
2
2
2
2
Moonrise
9:24
9:57
10:23
10:43
11:00
11:17
11:32
11:49
12:10
12:35
1:10
1:59
Moonset
5:20
6:30
7:43
8:56
10:10
11:24
12:40
2:00
3:24
4:51
6:15
Sunrise
7:45
7:46
7:46
7:47
7:47
7:47
7:48
7:48
7:48
7:48
7:48
7:48
Sunset
4:10
4:12
4:13
4:13
4:14
4:14
4:15
4:15
4:16
4:17
4:19
4:20
Today's sea temperature in Saint John's Harbour is
2.6° C
(Statistics for 21 Dec 1981-2005 – mean: 2.2 max: 4.0 min: 0.4°C)
Issued (local time): 1 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest