Surf Forecasts:
How big are the waves at Castlerock today (31 Oct):
- Morning surf: Morning surf (31 Oct, local time) - 3.5ft (1.0m), 13s period with NW swell.
- Afternoon surf: Afternoon surf (31 Oct, local time) - 3.5ft (1.1m), 13s period with NW swell.
- Evening surf: Evening surf (31 Oct, local time) - 3.5ft (1.1m), 13s period with NW swell.
The current surf forecast for Castlerock at 4AM is: 0.9m 14s primary swell from a Northwest direction (forecast issued at 11:00pm October 30). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 2.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Oct) | 3.5ft (1.0m) | 13s |
| Afternoon (31 Oct) | 3.5ft (1.1m) | 13s |
| Evening (31 Oct) | 3.5ft (1.1m) | 13s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Very mild (max 13°C on Fri night, min 9°C on Sun morning). Wind will be generally light. | |||||||||||||||||
Saturday 31 | Sunday 1 | ||||||||||||||||
9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||
Wave Height (m) Direction Period (s) | NW 16 | NW 15 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 |
Wave Graph  | |||||||||||||||||
 kJ | 85 | 255 | 293 | 352 | 342 | 380 | 380 | 374 | 411 | 398 | 346 | 305 | 273 | 265 | 240 | 205 | 161 |
Wind (km/h) | |||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross | cross-on | on | on | on | on |
High Tide | 8:38PM1.43m | 9:10AM1.61m | 9:34PM1.24m | 10:23AM1.50m | |||||||||||||
Low Tide | 2:46AM0.38m | 4:00PM0.47m | 3:50AM0.49m | 5:37PM0.57m | |||||||||||||
 |  |  | |  | |  |  |  | | | |  | | | | | |
 | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — |
 | — | — | — | — | — | — | 4:52 | — | — | — | — | — | — | — | 4:50 | — | — |
mm | — | — | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 |
Feels °C | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 7 | 6 | 6 | 7 | 8 | 7 | 5 | 6 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | NW 15 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 12 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 |
| kJ | 55 | 255 | 293 | 352 | 342 | 380 | 380 | 374 | 411 | 398 | 346 | 305 | 273 | 265 | 240 | 205 | 161 |
Swell 2 Height (m) Direction Period (s) | NW 16 | ESE 4 | ESE 4 | E 10 | E 9 | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 85 | 3 | 1 | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | N 11 | — | N 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 4 | — | — | ESE 4 | — | — | — | — | — | NW 4 | — | — | NNW 4 | NNW 4 | N 4 | N 4 | N 4 |
| kJ | 3 | — | — | 2 | — | — | — | — | — | 9 | — | — | 5 | 13 | 13 | 13 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 281 | 131 | 114 | 27 | 9 | 71 | 71 | 71 | 71 | 71 |
Best forecast wave conditions in Londonderry | |||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||
Header Global | |||||||||||||||||
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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.
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