Castlerock surf break

Castlerock surfForecast / Londonderry / Ireland

information circle48hr Weather and Surf, issued 12 am Friday 03 Apr 2026 BST
Forecast update in hr  min  s Forecast update imminent
Castlerock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Castlerock sea temperature is
8.4° C
(Which is normal for this time of year)

How big are the waves at Castlerock today?

The current surf forecast for Castlerock at 7AM is: 1.3m 14s primary swell from a Northwest direction (forecast issued at 12:00am April 03). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (03 Apr)4.5ft (1.3m)13s
Afternoon (03 Apr)4.5ft (1.3m)13s
Evening (03 Apr)3.5ft (1.0m)13s

Table - waves today at Castlerock. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Friday
03
Saturday
04
Sunday
05
10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM10PM1AM4AM7AM10AM1PM4PM7PM
Rating
(10 max)
1
3
0
1
3
0
0
0
1
2
4
4
3
1
1
0
0
0
0
2
0
0
0
1
Swell
Height Map
Wave Height (m) & direction (?)
0.9
NW
1.1
NW
1.3
NW
1.3
NW
1.3
NW
1.3
NW
1.4
NW
1.1
NW
0.9
NW
1
NW
1.6
NW
1.7
NW
1.7
NW
1.6
NW
1.6
NW
1.6
NW
2.3
NW
1.4
NW
1.4
NW
1.4
NW
1.3
NW
1.3
NW
1.3
NW
1.8
NW
Period(s) (?)101614141313131313121615141414141414141313131313
Wave
Graph
(?)Metric surfscale
Energy kJ (?)18062865859556956070039427329713141254118798495790418647257157046285535451127
Wind
(km/h)
30
S
25
SSW
15
NW
15
NW
10
SE
35
NW
40
WNW
35
W
25
WSW
20
SW
15
SSW
15
S
20
SE
25
ESE
45
S
40
SW
55
NNW
45
NW
25
W
20
WSW
30
W
40
W
35
W
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffcross-
on
cross-
on
cross-
off
cross-
on
crosscrosscross-
off
cross-
off
offoffcross-
off
cross-
off
offcross-
off
cross-
on
cross-
on
crosscross-
off
crosscrosscrosscross
High Tide
/ height (m)
7:16PM
1.71
7:34AM
1.88
7:44PM
1.73
8:01AM
1.78
8:12PM
1.71
8:28AM
1.66
Low Tide
/ height (m)
1:30AM
0.05
1:56PM
0.13
2:01AM
0.10
2:19PM
0.18
2:31AM
0.18
2:42PM
0.26
Friday
03
Saturday
04
Sunday
05
Sunrise---6:54-------6:52-------6:50----
Sunset-------8:07-------8:08-------8:10
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
clear
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
rain showers
part cloud
cloud
light rain
rain showers
rain showers
part cloud
Rain (mm)
1111141-----151451--211-
Temp. °C8977657754443410945535677
Feels °C (?)24333-3-2-2-2-2-1-1-2-311-8-6-2-3-3-4-20
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castlerock surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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