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 04:46 AM and sunset is at 10:10 PM.

Days 1–3 Weather Summary

Light rain (total 8mm), mostly falling on Mon night. Cool air temperatures (max 17°C on Wed afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the W on Tue morning, light winds from the SW by Tue night).

Days 4–6 Weather Summary

Heavy rain (total 29mm), heaviest during Sun afternoon. Cool air temperatures (max 18°C on Fri afternoon, min 11°C on Sun morning). Winds decreasing (fresh winds from the SSW on Fri afternoon, calm by Sat night).

Days 7–9 Weather Summary

Light rain (total 8mm), mostly falling on Sun night. Very mild (max 13°C on Tue morning, min 10°C on Mon night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 7mm), mostly falling on Fri night. Very mild (max 17°C on Fri afternoon, min 11°C on Wed night). Winds decreasing (fresh winds from the SW on Fri night, light winds from the W by Sat afternoon).

Tuesday
24
Wednesday
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Sat
5
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
6:10PM1.74m
6:34AM1.65m
6:58PM1.84m
7:19AM1.61m
7:44PM1.89m
8:02AM1.55m
8:29PM1.90m
8:42AM1.47m
9:15PM1.85m
9:21AM1.39m
10:00PM1.77m
10:01AM1.30m
10:45PM1.66m
10:43AM1.22m
11:32PM1.54m
11:32AM1.15m
00:24AM1.42m
12:38PM1.11m
1:26AM1.32m
2:04PM1.11m
2:37AM1.27m
3:22PM1.17m
Low Tide
12:07PM0.22m
00:41AM0.19m
12:53PM0.18m
1:35AM0.15m
1:36PM0.15m
2:25AM0.17m
2:18PM0.14m
3:12AM0.23m
2:58PM0.15m
3:59AM0.31m
3:39PM0.19m
4:44AM0.41m
4:21PM0.26m
5:30AM0.50m
5:05PM0.36m
6:17AM0.56m
5:54PM0.47m
7:08AM0.61m
6:52PM0.56m
8:04AM0.62m
8:02PM0.63m
9:05AM0.61m
Wave
height (m) 
direction
period (s) 
1.1
NW
9.0
1.1
NW
8.0
0.7
NW
8.0
0.5
NW
8.0
0.5
NW
9.0
0.4
NW
10.0
0.6
NW
10.0
0.8
NW
10.0
0.9
NW
11.0
0.9
NW
11.0
0.8
NW
10.0
0.7
NW
10.0
0.6
NW
10.0
0.6
NW
9.0
0.5
NW
9.0
0.5
NW
8.0
0.6
NW
11.0
0.7
NW
11.0
0.6
NW
10.0
1.2
NNW
5.0
0.8
NW
6.0
0.5
NW
9.0
0.5
NW
8.0
0.5
NW
8.0
0.5
NW
8.0
0.6
NW
8.0
0.8
NW
5.0
1
NNW
5.0
0.9
NW
5.0
0.8
NW
5.0
0.7
NW
6.0
0.6
NW
6.0
0.9
NW
8.0
1.1
NW
12.0
1
NW
11.0
rain showers
part cloud
cloud
cloud
cloud
rain showers
part cloud
cloud
rain showers
light rain
light rain
rain showers
part cloud
cloud
light rain
light rain
heavy rain
light rain
light rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
part cloud
cloud
light rain
light rain
cloud
rain shwrs
some clouds
cloudy
cloudy
cloudy
rain shwrs
some clouds
cloudy
rain shwrs
light rain
light rain
rain shwrs
some clouds
cloudy
light rain
light rain
heavy rain
light rain
light rain
rain shwrs
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
some clouds
cloudy
light rain
light rain
cloudy
 km/h
30
W
25
W
5
SW
10
S
15
S
15
S
20
WSW
15
SW
30
SSW
15
SW
35
SSW
15
SW
20
WSW
15
WNW
10
SSW
10
SSE
15
NE
10
N
10
N
30
NNW
15
NW
5
WNW
10
N
5
NW
10
NW
20
NNW
20
NNW
25
NNW
25
NW
20
WNW
20
WNW
15
W
35
SW
20
WSW
15
WSW
 mm 
1
2
1
2
2
4
3
3
14
5
2
1
4
2
max°C
14
15
14
16
17
14
15
16
16
17
18
17
17
16
14
11
11
11
11
12
11
13
13
12
12
13
12
12
13
12
14
17
15
15
15
Moonrise
2:51
3:44
5:02
6:34
8:08
9:37
11:00
12:19
1:35
2:51
4:08
5:27
Moonset
10:21
11:17
11:50
12:09
12:21
12:29
12:35
12:40
12:46
12:52
12:59
Sunrise
4:46
4:47
4:47
4:48
4:48
4:48
4:50
4:50
4:50
4:52
4:52
4:54
Sunset
10:10
10:10
10:10
10:10
10:10
10:09
10:09
10:09
10:08
10:08
10:07
10:07
Today's sea temperature in Portstewart is 13.8 °C (Statistics for 24 Jun 1981-2005 – mean: 12.6 max: 13.6 min: 11.4°C)
Issued (local time): 12 am Tuesday 24 Jun 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest