Portstewart Sea Conditions and Tide Table

Portstewart 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 07:50 AM and sunset is at 04:29 PM.

Days 1–3 Weather Summary

Heavy rain (total 47mm), heaviest during Wed night. Cool air temperatures (max 14°C on Tue afternoon, min 6°C on Thu morning). Mainly strong winds.

Days 4–6 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Low air temperatures (max 9°C on Sun night, min 6°C on Fri morning). Winds decreasing (strong winds from the E on Fri night, light winds from the NNE by Sun morning).

Days 7–9 Weather Summary

Moderate rain (total 15mm), heaviest on Tue afternoon. Mild temperatures (max 7°C on Mon morning, min 4°C on Tue afternoon). Winds decreasing (strong winds from the N on Mon night, light winds from the NNW by Tue afternoon).

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Thu morning. Mild temperatures (max 8°C on Thu morning, min 4°C on Fri morning). Winds decreasing (fresh winds from the NNW on Thu morning, light winds from the E by Thu night).

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
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
10:08AM1.54m
10:33PM1.06m
11:43AM1.46m
00:29AM1.01m
1:23PM1.48m
2:03AM1.08m
2:29PM1.54m
2:58AM1.20m
3:15PM1.59m
3:38AM1.32m
3:51PM1.62m
4:12AM1.44m
4:23PM1.63m
4:42AM1.54m
4:53PM1.64m
5:11AM1.62m
5:22PM1.63m
5:40AM1.67m
5:52PM1.60m
6:10AM1.70m
6:22PM1.56m
6:42AM1.69m
6:52PM1.51m
Low Tide
5:20PM0.56m
4:51AM0.53m
6:55PM0.59m
6:20AM0.56m
8:17PM0.55m
7:41AM0.52m
9:12PM0.47m
8:46AM0.46m
9:50PM0.39m
9:36AM0.40m
10:21PM0.33m
10:17AM0.34m
10:48PM0.27m
10:54AM0.30m
11:14PM0.24m
11:28AM0.27m
11:41PM0.22m
12:02PM0.26m
00:09AM0.23m
12:35PM0.28m
00:37AM0.25m
1:09PM0.33m
1:07AM0.29m
Wave
height (m) 
direction
period (s) 
0.8
NW
14.0
0.8
NW
14.0
0.7
NW
13.0
1.2
NNW
12.0
1.7
NNW
11.0
2
NNW
10.0
2
NNE
6.0
1.6
NNW
8.0
1.4
NE
5.0
1.3
ENE
5.0
1.7
ENE
5.0
2.1
ENE
6.0
1.6
ENE
6.0
1.3
ENE
5.0
1.1
ENE
5.0
0.5
NE
4.0
0.5
NW
14.0
0.9
NNW
4.0
1.7
NNW
7.0
2
NNW
7.0
1.9
NNW
7.0
1.5
NNW
6.0
1.2
NNW
6.0
1.3
NNW
6.0
1.6
NNW
6.0
1.5
NNW
7.0
0.9
NNW
6.0
0.9
NW
6.0
1.7
NNW
6.0
1.3
NNW
6.0
0.6
NW
6.0
0.6
NW
13.0
0.5
NW
8.0
0.5
NW
12.0
0.4
NW
12.0
0.5
NW
12.0
heavy rain
mod rain
part cloud
part cloud
cloud
heavy rain
light rain
cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
clear
part cloud
part cloud
rain showers
light rain
rain showers
light rain
light rain
light rain
light rain
light rain
cloud
light rain
rain showers
cloud
part cloud
part cloud
clear
part cloud
cloud
part cloud
cloud
heavy rain
mod rain
some clouds
some clouds
cloudy
heavy rain
light rain
cloudy
some clouds
clear
some clouds
cloudy
some clouds
some clouds
clear
some clouds
some clouds
rain shwrs
light rain
rain shwrs
light rain
light rain
light rain
light rain
light rain
cloudy
light rain
rain shwrs
cloudy
some clouds
some clouds
clear
some clouds
cloudy
some clouds
cloudy
 km/h
30
E
30
SSE
30
SSW
35
SW
15
WSW
20
ENE
35
NNE
25
NE
35
ENE
35
ENE
45
ENE
50
E
40
E
30
E
30
ENE
15
NE
20
N
25
N
30
NNE
40
N
30
N
30
WNW
15
NNW
20
NNW
30
N
25
N
15
W
20
WNW
30
NNW
15
N
10
ESE
20
ENE
15
E
15
SSE
20
SSE
25
SSE
 mm 
12
8
23
4
2
1
2
3
2
3
2
1
1
2
max°C
12
14
12
12
11
10
6
8
7
7
7
8
8
8
7
7
8
9
7
7
7
7
6
6
7
7
7
8
8
6
5
6
6
7
6
6
Moonrise
10:24
11:51
1:12
2:30
3:47
5:03
6:21
7:40
8:59
10:15
11:19
Moonset
2:10
2:21
2:28
2:34
2:40
2:45
2:52
3:00
3:12
3:29
3:56
4:39
Sunrise
7:50
7:52
7:54
7:56
7:58
8:00
8:03
8:04
8:07
8:08
8:11
8:12
Sunset
4:29
4:27
4:25
4:23
4:22
4:21
4:19
4:17
4:15
4:15
4:13
4:12
Today's sea temperature in Portstewart is 12.7 °C (Statistics for 11 Nov 1981-2005 – mean: 11.4 max: 12.5 min: 10.4°C)
Issued (local time): 11 am Tuesday 11 Nov 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest