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Surf Forecasts:

Castlerock surf break

Castlerock surfForecast / Londonderry / Ireland

information circle48hr Weather and Surf, issued 5 pm Saturday 14 Mar 2026 GMT
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
8.0° C
 (Which is normal for this time of year)

How big are the waves at Castlerock today?

The current surf forecast for Castlerock at 12AM is: 1.8m 13s primary swell from a Northwest direction (forecast issued at 05:00pm March 14). The wind direction is predicted to be offshore and the swell rating is 4.

Time (GMT) & DateWave HeightWave Period
Morning (15 Mar)--
Afternoon (15 Mar)6.5ft (2.0m)12s
Evening (15 Mar)6ft (1.8m)12s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table
Saturday
14
Sunday
15
Monday
16
Tuesday
17
3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM
Rating
(10 max)
2
2
2
4
2
2
0
0
0
2
6
!
!
!
7
8
6
4
3
4
3
3
2
3
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2
NW
1.8
NW
1.8
NW
1.8
NW
1.6
NW
1.4
NW
1.6
NW
2.4
WNW
3
NW
3.5
NW
4.5
NW
5
NW
5
NW
4.5
NW
4.5
NW
4
NW
3.5
NW
3
NW
3
NW
2.5
NW
2.2
NW
1.9
NW
1.8
NW
1.8
NW
Period(s) (?)121112131313121112131919191918181716161614141414
Wave
Graph
(?)Metric surfscale
Energy kJ (?)109486684010218026536551400258437891498517239172391547313401968170715178372530531983144311861135
Wind
(km/h)
20
W
15
WSW
15
SSW
20
SSW
30
S
25
SSW
35
W
45
W
45
W
40
WSW
35
WSW
35
WSW
30
WSW
30
WSW
25
SW
30
SSW
35
SW
30
SSW
35
SSW
35
SSW
35
SSW
30
S
35
S
35
S
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off		cross-
off		offoffcross-
off		cross-
off		crosscrosscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		offcross-
off		cross-
off		cross-
off		offoffoffoffoff
High Tide
/ height (m)
3:46PM
1.17
4:12AM
1.45
4:16PM
1.32
4:39AM
1.63
4:46PM
1.46
5:07AM
1.80
Low Tide
/ height (m)
9:58PM
0.50
10:43AM
0.48
10:32PM
0.34
11:12AM
0.34
11:02PM
0.21
11:40AM
0.20
Saturday
14
Sunday
15
Monday
16
Tuesday
17
Sunrise------6:43-------6:41-------6:37-
Sunset-6:27-------6:29-------6:30------
light rain
cloud
cloud
cloud
cloud
light rain
light rain
rain showers
rain showers
light rain
light rain
light rain
light rain
cloud
cloud
light rain
light rain
cloud
cloud
cloud
cloud
cloud
cloud
cloud
Rain (mm)
1----11111111--11-------
Temp. °C87666776644446681011111111111112
Feels °C (?)3210-11-2-4-4-5-5-5-4-10134444435
  • 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

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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.

View detailed surf forecast for Castlerock at:
surf-forecast.com

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