Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

Castlerock surf break

Castlerock surfForecast / Londonderry / Ireland

information circle48hr Weather and Surf, issued 11 pm Saturday 10 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
9.3° C
 (Which is normal for this time of year)

How big are the waves at Castlerock today?

The current surf forecast for Castlerock at 5AM is: 0.7m 10s primary swell from a West-northwest direction (forecast issued at 11:00pm January 10). An open ocean swell of 1.2m 5s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (GMT) & DateWave HeightWave Period
Morning (11 Jan)1.5ft (0.5m)10s
Afternoon (11 Jan)1.5ft (0.5m)11s
Evening (11 Jan)2.5ft (0.7m)12s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table
Sunday
11
Monday
12
Tuesday
13
9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM9 PM0 AM3 AM6 AM9 AM12 PM3 PM6 PM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
3
4
4
4
3
3
1
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.1
NW
0.9
NW
0.7
NW
0.7
WNW
0.5
WNW
0.5
WNW
0.5
WNW
0.7
WNW
0.7
WNW
1.3
WNW
1.2
WNW
1.3
WNW
1.1
NW
0.9
WNW
0.9
NW
0.9
NNW
1.6
NW
1.9
NW
2.2
NNW
2
NNW
1.7
NNW
1.5
NNW
1.5
NNW
1.8
NNW
Period(s) (?)101010101011111212111211998131212121212111211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2701579486597174136131416379346190129100304811115513611106805540612787
Wind
(km/h)
35
SSE
50
SSE
40
S
35
S
30
S
25
SSE
35
SSE
50
SSE
60
SSW
45
SW
40
SW
35
SW
35
SSW
30
SSW
20
SW
20
WSW
15
SW
10
WSW
10
WSW
10
SW
15
SW
15
WSW
15
W
25
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffoffoffoffoffoffoffcross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crosscross-
on
High Tide
/ height (m)
10:54PM
1.14
11:45AM
1.30
12:19AM
1.09
1:09PM
1.20
2:08AM
1.13
2:36PM
1.19
Low Tide
/ height (m)
5:16AM
0.55
6:28PM
0.66
6:31AM
0.66
7:39PM
0.67
8:08AM
0.69
Sunday
11
Monday
12
Tuesday
13
Sunrise----8:47-------8:47-------8:45---
Sunset------4:22-------4:22-------4:24-
light rain
light rain
light rain
light rain
light rain
cloud
light rain
light rain
rain showers
light rain
part cloud
part cloud
cloud
cloud
light rain
rain showers
clear
part cloud
light rain
cloud
cloud
clear
part cloud
clear
Rain (mm)
25231-1214----11--1-----
Temp. °C5589101011129999998876665666
Feels °C (?)-3-6-124543-4-10112333232121-1
  • 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

Latest Updates

The World’s Most Inconsistent Waves
Ben Mondy

The World’s Most Inconsistent Waves

Huntington, Dribbleton, Virginia, Holland and the Superbank! We recently had a look at the world’s most consistent waves. This was based on the combination of swells and wind directed at 7,000 surf spots, as compiled from our data since 2006. Those stats, represented in easy-to-read graphics, are located under each wave’s spot guides, with historical swell and wind breakdowns available by month, season, and year. There is also an offshore filter, which shows how often the swells come with clean

Read more

Read more

Discover more articles and updates in the Greenroom.

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

Nearest locationNearest
Nearest locationNearest
Nearest locationNearest