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Surf Forecasts:

Castlerock surf break

Castlerock surfForecast / Londonderry / Ireland

information circle48hr Weather and Surf, issued 5 pm Tuesday 13 Jan 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
9.1° C
 (Which is normal for this time of year)

How big are the waves at Castlerock today?

The current surf forecast for Castlerock at 8PM is: 1.8m 11s primary swell from a Northwest direction and 0.6m 11s secondary swell from a Northwest direction (forecast issued at 05:00pm January 13). The wind direction is predicted to be cross-offshore.

Time (GMT) & DateWave HeightWave Period
Morning (13 Jan)--
Afternoon (13 Jan)5.5ft (1.7m)10s
Evening (13 Jan)6ft (1.8m)11s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
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)
0
0
2
2
2
3
2
1
1
0
0
0
2
2
3
4
4
4
4
3
3
4
3
2
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.7
NW
1.6
NW
1.8
NW
1.8
NW
1.6
NW
1.6
NW
1.4
NW
1.2
NW
1
NW
0.9
NW
0.7
NNW
0.6
NNW
0.3
NW
0.8
NW
1.6
NW
1.8
NW
1.9
NW
1.8
NW
1.8
NW
1.7
NW
1.6
NW
1.5
NW
1.4
NW
1.4
NW
Period(s) (?)10811111010101010101010232019181817171616161615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)60434672569857053037729219213985618259316552065221618601818156113501115993805
Wind
(km/h)
30
WNW
20
W
20
WSW
20
SW
20
SSW
20
S
25
SSE
25
SSE
30
S
30
S
20
SSW
20
SW
20
SSW
20
SSW
20
SSW
15
S
20
SSE
15
SSE
20
SSE
20
SSE
15
SSE
15
SSE
15
SE
15
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off		cross-
off		cross-
off		offoffoffoffoffcross-
off		cross-
off		offcross-
off		cross-
off		offoffoffoffcross-
off		cross-
off		offcross-
off		cross-
off
High Tide
/ height (m)
2:36PM
1.19
3:21AM
1.22
3:37PM
1.23
4:09AM
1.34
4:21PM
1.31
4:48AM
1.46
Low Tide
/ height (m)
8:57PM
0.63
9:37AM
0.64
9:58PM
0.55
10:36AM
0.55
10:44PM
0.45
11:18AM
0.46
Tuesday
13
Wednesday
14
Thursday
15
Friday
16
Sunrise------8:45-------8:44-------8:42-
Sunset4:24-------4:27-------4:28-------
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
rain showers
cloud
cloud
cloud
clear
clear
clear
part cloud
clear
part cloud
cloud
cloud
cloud
clear
Rain (mm)
--------131-------------
Temp. °C755444455566544554434445
Feels °C (?)-1-2-1-2-2-2-3-2-3-2100-2-200-1-1-2-1-1-10
  • 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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