Castlerock Surf Break

Lat Long: 55.17° N 6.78° W

Castlerock 48 hour detailed Surf Forecast

Issued: 12 am 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Castlerock sea temperature is
15.1° C
1.6° 

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 (10 Jul):

  • Morning surf: Morning surf (10 Jul, local time) - 1.5ft (0.5m), 11s period with NW swell.
  • Afternoon surf: Afternoon surf (10 Jul, local time) - 2ft (0.6m), 10s period with NW swell.
  • Evening surf: Evening surf (10 Jul, local time) - 2ft (0.6m), 10s period with WNW swell.

The current surf forecast for Castlerock at 8AM is: 0.4m 12s primary swell from a Northwest direction and 0.3m 9s secondary swell from a West-northwest direction (forecast issued at 12:00am July 10). The wind direction is predicted to be onshore.

Time (BST) & DateWave HeightWave Period
Morning (10 Jul)1.5ft (0.5m)11s
Afternoon (10 Jul)2ft (0.6m)10s
Evening (10 Jul)2ft (0.6m)10s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Sun afternoon, min 11°C on Fri night). Wind will be generally light.

Friday
10
Saturday
11
Sunday
12
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
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)
0.3
WNW
9
0.3
WNW
9
0.4
NW
12
0.6
WNW
11
0.6
WNW
11
0.6
NW
10
0.6
WNW
10
0.6
WNW
10
0.6
WNW
10
0.6
WNW
10
0.6
WNW
10
0.5
NW
10
0.4
WNW
9
0.4
WNW
9
0.4
WNW
9
0.4
WNW
9
0.4
NW
8
0.4
NW
8
0.3
WNW
8
0.3
WNW
8
0.4
NW
5
0.2
WNW
8
0.2
WNW
7
0.2
WNW
7
Wave Graph
Metric surfscale
Energy kJ
16
15
35
81
75
82
65
65
67
68
64
45
33
32
31
30
18
17
13
12
6
6
5
5
Wind (km/h)
5
NE
5
NNE
5
NNE
10
NNW
10
N
20
NNW
20
NNW
20
NW
15
NNW
15
NW
15
NNW
15
N
15
N
10
N
10
N
10
NNW
0
NW
5
SSE
10
SE
10
ESE
15
E
15
E
15
E
10
E
Wind State
glassy
glassy
glassy
on
on
on
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
glassy
off
cross-off
cross-off
cross
cross
cross
cross
High Tide
2:30AM1.44m
3:19PM1.30m
3:48AM1.47m
4:27PM1.45m
4:53AM1.54m
5:24PM1.62m
Low Tide
9:06AM0.48m
9:22PM0.51m
10:18AM0.42m
10:46PM0.41m
11:19AM0.32m
part cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:00
5:01
5:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:04
10:02
10:01
 mm
Temp °C
16
15
15
15
15
14
13
12
12
11
12
13
14
15
16
16
16
16
14
16
18
20
20
19
Feels °C
17
16
16
14
14
11
10
9
9
8
10
11
13
14
15
16
17
16
13
15
16
19
19
18
  • 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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