Castlerock Surf Break

Castlerock 48 hour detailed Surf Forecast

Lat Long: 55.17° N 6.78° W

Issued: 6 pm 23 Jun 2026 (local time)

Forecast update in  hr  min

Today's Castlerock sea temperature is
13.7° C

1.1°C warmer than normal for this time of year

Castlerock surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Castlerock today (24 Jun):

  • Morning surf: Morning surf (24 Jun, local time) - 0.5ft (0.2m), 6s period with WNW swell.
  • Afternoon surf: Afternoon surf (24 Jun, local time) - 0.5ft (0.1m), 8s period with W swell.
  • Evening surf: Evening surf (24 Jun, local time) - 0.5ft (0.2m), 7s period with WNW swell.

The current surf forecast for Castlerock at 1AM is: 0.4m 6s primary swell from a Northwest direction and 0.1m 8s secondary swell from a North direction (forecast issued at 06:00pm June 23). The wind direction is predicted to be glassy.

Time (BST) & DateWave HeightWave Period
Morning (24 Jun)0.5ft (0.2m)6s
Afternoon (24 Jun)0.5ft (0.1m)8s
Evening (24 Jun)0.5ft (0.2m)7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 12mm), heaviest on Thu night. Warm (max 20°C on Tue afternoon, min 13°C on Thu night). Wind will be generally light.

Tue
23
Wednesday
24
Thursday
25
Fri
26
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
WNW
6
0.4
NW
5
0.4
NW
5
0.4
NW
6
0.2
WNW
6
0.2
WNW
5
0.2
WNW
6
0.2
WNW
6
0.1
W
8
0.2
WNW
7
0.2
WNW
7
0.3
WNW
8
0.4
NW
8
0.4
WNW
10
0.4
WNW
10
0.4
WNW
10
0.4
WNW
11
0.4
WNW
10
0.4
WNW
10
0.3
WNW
10
0.6
NNW
5
0.6
NNW
5
0.8
NNW
5
0.7
NNW
6
Wave Graph
Metric surfscale
Energy kJ
4
5
7
8
3
3
3
3
1
5
5
12
18
37
40
42
44
43
35
20
20
19
39
31
Wind (km/h)
10
N
15
NW
10
NNW
5
NNW
5
N
0
NE
5
NNE
10
NNE
10
N
10
NNE
10
NE
5
N
5
ENE
10
NNE
10
NNE
10
NNE
5
ENE
10
N
15
N
10
NNW
15
N
15
NW
10
NNW
10
NNW
Wind State
on
cross-on
on
glassy
glassy
glassy
glassy
cross-on
on
cross-on
cross-on
glassy
glassy
on
on
cross-on
glassy
on
on
on
on
cross-on
cross-on
cross-on
High Tide
2:09PM1.14m
2:45AM1.39m
3:22PM1.21m
3:44AM1.35m
4:19PM1.30m
4:35AM1.35m
Low Tide
8:02PM0.54m
9:13AM0.56m
9:18PM0.57m
10:07AM0.52m
10:28PM0.55m
10:55AM0.48m
part cloud
clear
part cloud
cloud
cloud
clear
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
thunderstorm
rain showers
part cloud
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:47
4:47
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:10
10:10
10:10
10:10
 mm
1
1
1
3
1
1
2
2
Temp °C
20
17
15
14
14
14
15
16
17
15
14
14
15
14
16
16
19
18
15
14
13
14
13
13
Feels °C
20
15
14
14
14
14
15
15
16
14
13
14
15
12
15
15
20
19
14
13
11
13
12
12
Swell 1
Height (m)
Direction
Period (s)
0.2
WNW
4
0.1
NW
6
0.4
NW
5
0.4
NW
6
0.2
WNW
6
0.2
WNW
5
0.2
WNW
6
0.2
WNW
6
0.1
NW
5
0.2
WNW
7
0.2
WNW
7
0.3
WNW
8
0.4
NW
8
0.4
WNW
10
0.4
WNW
10
0.4
WNW
10
0.4
WNW
11
0.4
WNW
10
0.4
WNW
10
0.3
WNW
10
0.6
NNW
5
0.6
NNW
5
0.8
NNW
5
0.7
NNW
6
Energy kJ
2
2
7
8
3
3
3
3
1
5
5
12
18
37
40
42
44
43
35
20
17
18
39
31
Swell 2
Height (m)
Direction
Period (s)
0.2
WNW
6
0.1
N
8
0.1
N
8
0.1
N
8
0.1
N
8
0.1
NW
6
0.1
N
7
0.1
W
8
0.2
WNW
11
0.3
N
4
0.3
NNW
4
0.3
WNW
10
0.3
WNW
10
0.3
WNW
10
0.2
WNW
10
Energy kJ
4
1
1
1
1
1
1
1
12
2
3
20
19
19
9
Swell 3
Height (m)
Direction
Period (s)
0.1
N
8
0.1
W
9
0.1
W
9
0.1
W
9
0.1
W
9
0.1
N
7
0.1
W
6
0.1
W
10
Energy kJ
1
2
2
2
1
1
1
2
Wind waves
Height (m)
Direction
Period (s)
0.4
NW
5
0.3
NE
3
0.3
NE
3
0.3
NE
3
Energy kJ
5
1
1
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
1
1
1
1
1
1
Distance (km)
328
366
87
42
150
404
87
40
150
150
40
40
40
40
40
63
16
16
114
66
78
74
16
66
Best forecast wave conditions in Londonderry
Rating
(10 max)
Best forecast wave conditions in Ireland
Rating
(10 max)
1
1
1
1
1
1
1
1
1
2
2
2
2
2
1
2
2
1
1
1
Header Global
Rating
(10 max)
5
6
7
8
9
9
9
9
8
6
6
5
5
5
5
5
5
4
4
5
5
6
6
5
  • 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
How to use the Wavefinder 

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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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