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 06:39 AM and sunset is at 06:31 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 9°C on Sun afternoon, min 3°C on Mon night). Winds increasing (calm on Sun morning, fresh winds from the SE by Tue morning).

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 11°C on Thu afternoon, min 4°C on Wed morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Very mild (max 10°C on Sun afternoon, min 7°C on Sat morning). Winds increasing (calm on Sat night, strong winds from the WNW by Mon morning).

Days 10–12 Weather Summary

Light rain (total 2mm), mostly falling on Tue night. Very mild (max 13°C on Thu afternoon, min 6°C on Tue night). Winds decreasing (fresh winds from the NW on Tue afternoon, calm by Thu night).

Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
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
7:04AM6.14ft
7:10PM5.48ft
7:29AM5.87ft
7:36PM5.41ft
7:54AM5.48ft
8:03PM5.22ft
8:19AM5.05ft
8:31PM4.92ft
8:46AM4.59ft
9:04PM4.53ft
9:17AM4.13ft
9:47PM4.04ft
10:01AM3.67ft
11:13PM3.64ft
12:03PM3.31ft
2:12AM3.81ft
2:36PM3.64ft
3:17AM4.46ft
3:32PM4.17ft
3:57AM5.22ft
4:13PM4.69ft
4:33AM5.97ft
4:50PM5.18ft
5:09AM6.63ft
Low Tide
1:27PM0.59ft
1:25AM0.33ft
1:49PM0.75ft
1:52AM0.62ft
2:09PM1.02ft
2:18AM1.02ft
2:28PM1.31ft
2:43AM1.48ft
2:49PM1.64ft
3:10AM1.97ft
3:17PM2ft
3:54AM2.43ft
4:23PM2.36ft
6:37AM2.76ft
7:23PM2.4ft
9:01AM2.4ft
8:59PM1.97ft
9:56AM1.77ft
9:47PM1.41ft
10:35AM1.15ft
10:25PM0.85ft
11:11AM0.52ft
11:00PM0.33ft
Wave
height (ft) 
direction
period (s) 
1.5
NW
7
1.5
NNW
8
1.5
NNW
7
2
NNW
7
1.5
NW
8
1.5
NW
13
2
E
3
2.5
ESE
4
1
NW
14
1.5
NW
12
1.5
NW
12
1
NW
11
0.5
NW
10
0.5
NW
10
0.5
NW
9
0.5
NW
9
0.5
NNW
5
1.5
ENE
4
2
NNW
17
2
NW
15
2
NW
13
2
NW
12
2
NW
11
2
NW
10
5
NW
8
8
NW
10
10
NNW
13
8
NNW
12
6.5
NNW
11
5
NNW
11
3.5
NW
10
3.5
NW
9
3.5
NW
9
3.5
NW
8
3.5
NW
9
3.5
NW
9
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
part cloud
part cloud
rain showers
cloud
cloud
part cloud
part cloud
clear
clear
some clouds
clear
some clouds
some clouds
some clouds
clear
some clouds
clear
clear
some clouds
clear
some clouds
clear
some clouds
some clouds
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
some clouds
clear
cloudy
some clouds
some clouds
some clouds
rain shwrs
cloudy
cloudy
some clouds
some clouds
clear
clear
 mph
5
NE
5
ENE
5
SE
10
ESE
10
SE
10
ESE
15
SE
15
SE
10
SE
10
SE
10
SE
5
SSE
5
SSE
5
NE
5
SE
5
E
10
NE
10
ENE
10
ENE
5
NE
5
NW
5
NW
10
NW
10
WSW
20
WNW
25
WNW
20
NW
20
NW
20
NW
10
WNW
5
SW
15
W
15
W
10
W
10
WNW
5
SSE
 in 
0.08
max°F
46
48
48
41
43
41
45
46
43
46
48
43
50
52
48
50
50
45
48
48
48
48
50
48
48
46
46
45
46
45
48
50
48
52
55
50
Moonrise
9:29
10:47
12:07
1:27
2:44
3:50
4:37
5:07
5:26
5:39
5:48
Moonset
7:01
7:07
7:15
7:26
7:44
8:12
8:58
10:05
11:30
1:02
2:38
4:14
Sunrise
6:39
6:37
6:33
6:31
6:28
6:26
6:24
6:20
6:18
6:16
6:13
6:11
Sunset
6:31
6:34
6:36
6:37
6:39
6:42
6:44
6:45
6:47
6:50
6:52
6:53
Today's sea temperature in Portstewart is 47 °F (Statistics for 16 Mar 1981-2005 – mean: 47 max: 48 min: 45°F)
Issued (local time): 11 am Sunday 16 Mar 2025
Forecast update inUpdates in 3 hr 16 min 53 sUpdate imminent
Nearest