Surf Forecasts:
How big are the waves at Castlerock today (11 Oct):
- Morning surf: Morning surf (11 Oct, local time) - 5.5ft (1.7m), 11s period with NW swell.
- Afternoon surf: Afternoon surf (11 Oct, local time) - 4.5ft (1.4m), 10s period with NW swell.
- Evening surf: Evening surf (11 Oct, local time) - 3ft (0.9m), 9s period with NW swell.
The current surf forecast for Castlerock at 12PM is: 1.5m 10s primary swell from a Northwest direction (forecast issued at 06:00am October 11). The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Oct) | 5.5ft (1.7m) | 11s |
| Afternoon (11 Oct) | 4.5ft (1.4m) | 10s |
| Evening (11 Oct) | 3ft (0.9m) | 9s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Mon night. Very mild (max 17°C on Mon afternoon, min 9°C on Sun morning). Winds increasing (light winds from the SSW on Sun morning, strong winds from the SE by Sun night). | |||||||||||||||||||||||
Sunday 11 | Monday 12 | Tuesday 13 | |||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 8 | NW 8 | WNW 9 | W 12 | WNW 12 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 11 | WNW 10 | WNW 9 | WNW 9 | NW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1103 | 878 | 664 | 424 | 315 | 188 | 123 | 79 | 50 | 17 | 10 | 8 | 12 | 15 | 14 | 46 | 79 | 25 | 30 | 83 | 243 | 211 | 659 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 6:57AM1.74m | 7:14PM1.89m | 7:27AM1.76m | 7:43PM1.79m | 7:56AM1.74m | 8:12PM1.66m | |||||||||||||||||
Low Tide | 1:09AM0.08m | 1:10PM0.04m | 1:35AM0.11m | 1:43PM0.09m | 2:00AM0.17m | 2:15PM0.17m | |||||||||||||||||
 | |  | | |  |  | |  | |  | | | | | |  | | | | | | | |
 | — | 7:47 | — | — | — | — | — | — | — | 7:48 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — |
 | — | — | — | — | 6:38 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:34 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | 5 | 1 | — | — | — | — | — | — |
Temp °C | 10 | 10 | 9 | 11 | 12 | 11 | 11 | 13 | 13 | 13 | 14 | 14 | 16 | 17 | 17 | 14 | 13 | 12 | 12 | 14 | 13 | 12 | 11 |
Feels °C | 5 | 7 | 6 | 6 | 7 | 6 | 4 | 6 | 7 | 9 | 11 | 11 | 12 | 13 | 13 | 9 | 9 | 9 | 9 | 8 | 7 | 8 | 7 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 8 | NW 8 | ESE 5 | E 5 | ESE 6 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 11 | WNW 10 | NW 13 | WNW 9 | NW 13 |
| kJ | 1103 | 878 | 664 | 424 | 315 | 188 | 123 | 79 | 50 | 17 | 10 | 20 | 14 | 3 | 14 | 46 | 79 | 25 | 30 | 83 | 111 | 211 | 659 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NW 11 | WNW 10 | WNW 10 | WNW 10 | NNW 8 | WNW 9 | WNW 12 | NW 9 | ESE 4 | ESE 4 | WNW 7 | NW 7 | — | — | NW 13 | — |
| kJ | — | — | — | — | — | — | — | 5 | 18 | 9 | 9 | 6 | 8 | 15 | 3 | 3 | 3 | 9 | 11 | — | — | 202 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 12 | W 12 | WNW 9 | W 12 | NW 9 | N 7 | — | — | E 4 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 3 | 3 | 8 | 12 | 3 | 1 | — | — | 1 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SE 3 | ESE 4 | SE 5 | SE 5 | ESE 6 | ESE 5 | — | SSE 2 | SE 4 | SE 4 | WSW 2 | SSW 2 | SW 2 | SSW 2 | WSW 3 | WNW 9 | — | SW 2 |
| kJ | — | — | — | — | — | 3 | 18 | 51 | 62 | 47 | 20 | — | 1 | 10 | 10 | 1 | 1 | 1 | 1 | 5 | 243 | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 18 | 9 | 0 | 2 | 2 | 2 | 260 | 260 | 83 | 56 | 27 | 56 | 83 | 194 | 162 | 391 | 9 | 155 | 42 | 313 | 187 | 9 | 9 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest