Surf Forecasts:
How big are the waves at Castlerock today (15 Oct):
- Morning surf: Morning surf (15 Oct, local time) - 6.5ft (2.0m), 15s period with NW swell.
- Afternoon surf: Afternoon surf (15 Oct, local time) - 7ft (2.1m), 14s period with NW swell.
- Evening surf: Evening surf (15 Oct, local time) - 6.5ft (2.0m), 13s period with NW swell.
The current surf forecast for Castlerock at 3PM is: 2.1m 14s primary swell from a Northwest direction (forecast issued at 12:00pm October 15). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Oct) | 6.5ft (2.0m) | 15s |
| Afternoon (15 Oct) | 7ft (2.1m) | 14s |
| Evening (15 Oct) | 6.5ft (2.0m) | 13s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri morning. Very mild (max 13°C on Thu afternoon, min 8°C on Sat night). Winds decreasing (fresh winds from the WNW on Fri morning, calm by Sat afternoon). | |||||||||||||||||||||
Thu 15 | Friday 16 | Saturday 17 | |||||||||||||||||||
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 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NNW 9 | NNW 9 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1624 | 1641 | 1504 | 1319 | 1259 | 970 | 869 | 798 | 696 | 683 | 561 | 490 | 384 | 288 | 207 | 234 | 202 | 205 | 263 | 180 | 150 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | cross-off | off |
High Tide | 8:57AM1.59m | 9:08PM1.37m | 9:31AM1.46m | 9:39PM1.23m | 10:14AM1.32m | ||||||||||||||||
Low Tide | 3:23PM0.43m | 3:17AM0.45m | 4:05PM0.58m | 3:50AM0.56m | 5:08PM0.73m | ||||||||||||||||
 | |  |  | | |  | |  | | | | |  | | |  | | | | | |
 | 7:54 | — | — | — | — | — | — | 7:56 | — | — | — | — | — | — | — | 7:58 | — | — | — | — | — |
 | — | — | 6:29 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:23 | — | — |
mm | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 11 | 12 | 13 | 11 | 10 | 9 | 9 | 9 | 10 | 11 | 12 | 11 | 11 | 11 | 10 | 9 | 9 | 10 | 10 | 10 | 9 |
Feels °C | 6 | 7 | 8 | 7 | 6 | 5 | 5 | 5 | 5 | 4 | 6 | 5 | 6 | 6 | 6 | 6 | 7 | 8 | 9 | 8 | 5 |
Swell 1 Height (m) Direction Period (s) | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | — | WNW 12 | WNW 12 | NW 12 | NNW 9 | NNW 9 | NNW 7 | NNW 9 | NW 12 | NW 12 | NW 11 | NW 11 |
| kJ | 1624 | 1641 | 1504 | 1319 | 1259 | 970 | 869 | 798 | 696 | — | 127 | 127 | 137 | 288 | 207 | 114 | 113 | 205 | 263 | 180 | 150 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNW 14 | NNW 14 | NW 12 | NW 12 | NW 13 | NW 12 | NNW 7 | NNW 8 | N 8 | NNW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 41 | 63 | 142 | 135 | 234 | 202 | 48 | 12 | 6 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 13 | NNW 13 | N 13 | N 13 | N 13 | NW 8 | — | N 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 59 | 58 | 31 | 30 | 29 | 3 | — | 6 |
Wind waves Height (m) Direction Period (s) | — | WSW 3 | — | — | — | — | — | — | — | NW 11 | NW 11 | NW 10 | NW 10 | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | — | — | — | — | — | — | 683 | 561 | 490 | 384 | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 302 | 339 | 439 | 440 | 408 | 300 | 131 | 71 | 72 | 4 | 9 | 0 | 0 | 0 |
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