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 04:04 PM.

Days 1–3 Weather Summary

Mostly dry. Low air temperatures (max 5°C on Wed afternoon, min 2°C on Thu morning). Wind will be generally light.

Days 4–6 Weather Summary

Mostly dry. Cool air temperatures (max 10°C on Mon afternoon, min 1°C on Sun morning). Wind will be generally light.

Days 7–9 Weather Summary

Some drizzle, heaviest during Wed night. Mild temperatures (max 9°C on Tue night, min 2°C on Thu night). Wind will be generally light.

Days 10–12 Weather Summary

Light rain (total 3mm), mostly falling on Sat morning. Freeze-thaw conditions (max 9°C on Sat morning, min 0°C on Fri night). Wind will be generally light.

Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
1
Friday
2
Saturday
3
Sunday
4
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
10:42AM2.89m
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
7:24AM2.87m
7:40PM2.72m
8:03AM2.86m
8:19PM2.55m
8:39AM2.79m
8:55PM2.36m
Low Tide
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
1:49PM0.70m
2:01AM0.70m
2:34PM0.77m
2:37AM0.83m
3:17PM0.89m
3:09AM0.97m
Wave
height (m) 
direction
period (s) 
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
clear
clear
part cloud
part cloud
part cloud
cloud
light rain
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
light rain
light rain
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
some clouds
cloudy
cloudy
clear
clear
some clouds
some clouds
some clouds
cloudy
light rain
some clouds
some clouds
some clouds
some clouds
some clouds
cloudy
light rain
light rain
light rain
some clouds
some clouds
clear
 km/h
5
ENE
5
ESE
5
E
5
ENE
10
E
5
ENE
5
NE
5
NE
5
ENE
5
ENE
15
E
5
E
0
SSE
0
S
5
SW
5
SW
5
WNW
5
WSW
5
W
5
WSW
20
NNW
25
N
20
N
15
N
10
NNE
10
N
5
NNE
5
S
5
SSW
10
SSW
15
WNW
25
NW
20
NNW
15
N
15
N
5
W
 mm 
1
1
1
1
max°C
4
5
3
3
3
3
4
4
5
5
4
4
1
2
3
6
10
9
6
8
9
6
6
5
5
5
5
1
2
4
9
8
9
8
7
8
Moonrise
11:32
11:41
11:48
11:55
12:03
12:13
12:27
12:49
1:26
2:26
3:51
5:27
Moonset
8:55
10:18
11:42
1:07
2:37
4:12
5:51
7:27
8:47
9:40
10:11
Sunrise
8:52
8:52
8:53
8:53
8:53
8:53
8:53
8:53
8:53
8:52
8:52
8:52
Sunset
4:04
4:04
4:05
4:06
4:07
4:07
4:08
4:09
4:10
4:13
4:14
4:15
Today's sea temperature in Londonderry County Borough is
7.7° C
(Statistics for 24 Dec 1981-2005 – mean: 9.9 max: 10.9 min: 8.9°C)
Issued (local time): 5 am Wednesday 24 Dec 2025
Forecast update inUpdates in  hr  min  sUpdate imminent
Nearest locationNearest