Castlerock Surf Break

Castlerock 48 hour detailed Surf Forecast

Lat Long: 55.17° N 6.78° W

Issued: 12 am 26 Jun 2026 (local time)

Forecast update in  hr  min

Today's Castlerock sea temperature is
14.0° C

1.3°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 (26 Jun):

  • Morning surf: Morning surf (26 Jun, local time) - 1ft (0.3m), 10s period with WNW swell.
  • Afternoon surf: Afternoon surf (26 Jun, local time) - 2.5ft (0.8m), 5s period with NNW swell.
  • Evening surf: Evening surf (26 Jun, local time) - 2ft (0.6m), 5s period with NNW swell.

The current surf forecast for Castlerock at 5AM is: 0.3m 10s primary swell from a West-northwest direction and 0.6m 5s secondary swell from a North-northwest direction (forecast issued at 12:00am June 26). The wind direction is predicted to be cross-onshore.

Time (BST) & DateWave HeightWave Period
Morning (26 Jun)1ft (0.3m)10s
Afternoon (26 Jun)2.5ft (0.8m)5s
Evening (26 Jun)2ft (0.6m)5s

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 14mm), heaviest on Fri morning. Very mild (max 19°C on Fri night, min 12°C on Fri morning). Wind will be generally light.

Friday
26
Saturday
27
Sunday
28
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
4 PM
7 PM
10 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
1
1
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)
0.7
NNW
5
0.6
NNW
5
0.3
WNW
10
0.3
WNW
10
0.8
NNW
5
0.8
NNW
5
0.7
NNW
5
0.6
NNW
5
0.5
NNW
5
0.4
NNW
5
0.2
WNW
9
0.2
WNW
10
0.4
NW
9
0.4
NW
9
0.4
NW
9
0.4
NW
9
0.4
NW
8
0.4
NW
8
0.4
NW
8
0.4
WNW
11
0.5
WNW
10
0.7
WNW
13
1.1
WNW
13
1.1
WNW
12
Wave Graph
Metric surfscale
Energy kJ
20
20
19
19
36
39
29
21
15
11
8
10
22
21
20
20
18
17
18
47
60
147
384
377
Wind (km/h)
15
NW
15
NW
20
NW
20
NW
10
NNW
5
NW
5
NE
10
SSE
15
SSE
20
SSE
20
SSE
30
S
20
S
10
SSW
15
S
15
S
15
SSW
15
SSW
15
SW
20
SW
15
SW
15
WSW
20
WSW
15
SW
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
cross-off
off
off
off
off
off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
4:35AM1.35m
5:04PM1.40m
5:17AM1.37m
5:43PM1.48m
5:55AM1.41m
6:19PM1.56m
Low Tide
10:28PM0.55m
10:55AM0.48m
11:24PM0.50m
11:37AM0.42m
00:10AM0.44m
12:16PM0.36m
light rain
light rain
light rain
light rain
rain showers
rain showers
light rain
part cloud
part cloud
cloud
cloud
part cloud
cloud
part cloud
part cloud
cloud
light rain
light rain
clear
clear
cloud
light rain
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:48
4:48
4:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:10
10:10
10:10
 mm
1
1
1
1
2
2
2
1
1
1
Temp °C
14
14
13
12
13
15
15
19
18
15
17
18
18
18
17
16
14
14
13
14
16
16
15
13
Feels °C
12
12
10
9
12
15
16
20
17
13
15
14
15
17
15
15
11
12
10
9
12
12
10
9
Swell 1
Height (m)
Direction
Period (s)
0.7
NNW
5
0.6
NNW
5
0.3
WNW
10
0.4
N
5
0.8
NNW
5
0.8
NNW
5
0.7
NNW
5
0.6
NNW
5
0.5
NNW
5
0.4
NNW
5
0.3
NNW
5
0.3
NNW
5
0.4
NW
9
0.4
NW
9
0.4
NW
9
0.4
NW
9
0.4
NW
8
0.4
NW
8
0.4
NW
8
0.4
WNW
11
0.5
WNW
10
0.7
WNW
13
1.1
WNW
13
1.1
WNW
12
Energy kJ
19
17
19
7
36
39
29
21
15
11
5
5
22
21
20
20
18
17
18
47
60
147
384
377
Swell 2
Height (m)
Direction
Period (s)
0.3
WNW
10
0.3
WNW
10
0.3
WNW
10
0.2
WNW
10
0.2
WNW
10
0.2
WNW
9
0.2
WNW
9
0.2
WNW
9
0.2
WNW
9
0.2
WNW
9
0.2
WNW
9
0.2
N
5
0.3
ESE
4
0.2
ESE
4
0.2
ESE
4
0.2
E
4
0.1
W
12
0.2
WNW
12
Energy kJ
20
20
19
9
9
9
9
8
8
8
8
2
3
1
2
1
3
14
Swell 3
Height (m)
Direction
Period (s)
0.2
WNW
10
0.1
SE
6
0.1
W
12
Energy kJ
10
1
3
Wind waves
Height (m)
Direction
Period (s)
0.5
NW
5
0.6
NNW
5
0.6
NNW
5
0.2
ESE
3
0.2
ESE
3
0.3
SE
2
0.5
SE
3
0.5
SE
4
0.2
WSW
2
0.3
WSW
2
Energy kJ
11
17
19
1
1
1
5
6
1
1
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
1
1
1
2
Distance (km)
66
76
300
76
78
63
40
40
40
56
56
194
187
42
40
42
40
42
42
42
9
8
71
9
Best forecast wave conditions in Londonderry
Rating
(10 max)
Best forecast wave conditions in Ireland
Rating
(10 max)
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
1
1
2
Header Global
Rating
(10 max)
5
5
5
5
6
7
7
5
5
6
6
5
5
5
7
8
8
8
7
6
5
5
6
6
  • 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 

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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