Londonderry County Borough Sea Conditions and Tide Table

Londonderry County Borough 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 — and sunset is at —.

Days 1–4 Weather Summary

Moderate rain (total 14mm), heaviest on Sat night. Low air temperatures (max 9°C on Sat morning, min 4°C on Sun morning). Mainly fresh winds.

Days 5–7 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Low air temperatures (max 8°C on Sun night, min 4°C on Mon afternoon). Wind will be generally light.

Days 8–10 Weather Summary

Mostly dry. Mild temperatures (max 6°C on Wed night, min 4°C on Wed night). Wind will be generally light.

Days 11–13 Weather Summary

Mostly dry. Mild temperatures (max 5°C on Sat night, min 2°C on Mon morning). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tue
30
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
AM
PM
Wave Height Map
High Tide
6:57PM2.71m
7:21AM2.85m
7:33PM2.78m
7:57AM2.97m
8:09PM2.80m
8:33AM3.04m
8:46PM2.77m
9:11AM3.04m
9:26PM2.71m
9:53AM2.98m
10:11PM2.60m
10:42AM2.89m
11:05PM2.47m
11:41AM2.78m
00:12AM2.35m
12:50PM2.70m
1:31AM2.29m
2:06PM2.68m
2:53AM2.33m
3:21PM2.73m
4:06AM2.45m
4:26PM2.82m
5:07AM2.61m
5:23PM2.89m
Low Tide
1:12AM0.68m
1:36PM0.74m
1:47AM0.59m
2:15PM0.67m
2:23AM0.55m
2:55PM0.64m
3:01AM0.56m
3:37PM0.67m
3:41AM0.61m
4:23PM0.74m
4:27AM0.71m
5:17PM0.83m
5:22AM0.83m
6:20PM0.91m
6:27AM0.95m
7:31PM0.95m
7:42AM1.01m
8:48PM0.91m
9:00AM1.00m
9:59PM0.79m
10:12AM0.91m
11:00PM0.66m
11:15AM0.80m
Wave
height (m) 
direction
period (s) 
rain showers
light rain
part cloud
part cloud
cloud
light rain
rain showers
cloud
light rain
light rain
part cloud
cloud
part cloud
part cloud
light rain
cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
cloud
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
rain shwrs
light rain
some clouds
some clouds
cloudy
light rain
rain shwrs
cloudy
light rain
light rain
some clouds
cloudy
some clouds
some clouds
light rain
cloudy
cloudy
cloudy
some clouds
cloudy
some clouds
some clouds
cloudy
clear
clear
clear
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
some clouds
some clouds
some clouds
clear
 km/h
25
SSW
30
WSW
20
SW
15
SSE
30
SSE
35
SE
5
NE
5
SSW
15
ENE
10
E
15
SE
5
ESE
5
E
5
NE
10
ENE
15
E
20
E
15
E
10
E
5
E
10
E
0
NE
5
WNW
10
N
5
NNE
20
ENE
20
E
15
E
20
ENE
15
ENE
10
ENE
0
ENE
5
N
5
E
5
ENE
5
ENE
 mm 
2
1
1
7
3
1
1
max°C
8
8
8
8
9
9
6
5
7
8
7
5
5
6
7
8
7
6
6
6
6
5
6
6
6
6
6
5
4
4
4
3
5
3
3
3
Moonrise
9:10
10:03
10:40
11:05
11:21
11:32
11:41
11:48
11:55
12:03
12:13
12:27
Moonset
2:43
3:38
4:48
6:09
7:32
8:55
10:18
11:42
1:07
2:37
4:12
Sunrise
8:51
8:51
8:52
8:52
8:52
8:52
8:52
8:53
8:53
8:53
8:53
8:53
Sunset
4:00
4:00
4:01
4:01
4:02
4:04
4:04
4:05
4:06
4:07
4:07
4:08
Today's sea temperature in Londonderry County Borough is
7.9° C
(Statistics for 18 Dec 1981-2005 – mean: 10.1 max: 10.9 min: 9.1°C)
Issued (local time): 11 pm Thursday 18 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest