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 08:52 AM and sunset is at 04:01 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 9°C on Sun morning, min 7°C on Sun morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Low air temperatures (max 8°C on Wed morning, min 1°C on Fri morning). Wind will be generally light.

Days 7–9 Weather Summary

Mostly dry. Mild temperatures (max 8°C on Mon morning, min 3°C on Sun afternoon). Wind will be generally light.

Days 10–12 Weather Summary

Moderate rain (total 11mm), heaviest on Wed night. Mild temperatures (max 8°C on Tue night, min 2°C on Wed night). Mainly fresh winds.

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
8:33AM3.04m
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
5:59AM2.75m
6:13PM2.91m
6:41AM2.83m
6:57PM2.83m
Low Tide
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
11:53PM0.57m
12:11PM0.71m
00:34AM0.57m
1:00PM0.69m
1:21AM0.61m
Wave
height (m) 
direction
period (s) 
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
clear
cloud
cloud
cloud
cloud
rain showers
light rain
light rain
cloud
part cloud
rain showers
some clouds
some clouds
some clouds
cloudy
cloudy
some clouds
cloudy
cloudy
some clouds
some clouds
clear
clear
clear
some clouds
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloudy
some clouds
clear
cloudy
cloudy
cloudy
cloudy
rain shwrs
light rain
light rain
cloudy
some clouds
rain shwrs
 km/h
10
SE
15
ESE
10
ENE
5
NNE
5
E
5
E
5
N
0
NW
5
NNW
5
NE
10
E
5
ENE
5
E
5
E
5
E
0
NW
0
ESE
0
WNW
5
ENE
5
ENE
5
ENE
0
NE
0
NNW
10
NNW
10
N
10
NNE
10
N
20
N
20
N
20
NNW
15
WNW
20
W
35
N
10
NNW
20
NNE
15
N
 mm 
1
3
5
1
max°C
9
8
8
9
9
9
9
9
9
8
7
5
4
4
4
2
3
5
5
5
5
4
3
7
8
7
6
6
6
8
8
6
6
5
6
4
Moonrise
10:40
11:05
11:21
11:32
11:41
11:48
11:55
12:03
12:13
12:27
12:49
1:26
Moonset
4:48
6:09
7:32
8:55
10:18
11:42
1:07
2:37
4:12
5:51
7:27
Sunrise
8:52
8:52
8:52
8:52
8:52
8:53
8:53
8:53
8:53
8:53
8:53
8:53
Sunset
4:01
4:01
4:02
4:04
4:04
4:05
4:06
4:07
4:07
4:08
4:09
4:10
Today's sea temperature in Londonderry County Borough is
7.8° C
(Statistics for 21 Dec 1981-2005 – mean: 10.0 max: 10.9 min: 9.1°C)
Issued (local time): 11 am Sunday 21 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest