Surf Forecasts:
How big are the waves at Castlerock today (28 Sep):
- Morning surf: Morning surf (28 Sep, local time) - 3ft (0.9m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (28 Sep, local time) - 3ft (0.9m), 11s period with WNW swell.
- Evening surf: Evening surf (28 Sep, local time) - 3ft (0.9m), 11s period with NW swell.
The current surf forecast for Castlerock at 3PM is: 0.9m 11s primary swell from a West-northwest direction and 0.1m 11s secondary swell from a North direction (forecast issued at 12:00pm September 28). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Sep) | 3ft (0.9m) | 12s |
| Afternoon (28 Sep) | 3ft (0.9m) | 11s |
| Evening (28 Sep) | 3ft (0.9m) | 11s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 17mm), heaviest on Tue night. Very mild (max 18°C on Tue night, min 9°C on Wed night). Winds decreasing (strong winds from the SE on Tue night, light winds from the S by Wed night). | |||||||||||||||||||||
Mon 28 | Tuesday 29 | Wednesday 30 | |||||||||||||||||||
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) | WNW 12 | WNW 11 | WNW 11 | NW 11 | NW 11 | WNW 10 | NW 11 | NW 11 | WNW 11 | WNW 11 | NW 10 | WNW 10 | W 12 | NW 10 | W 10 | W 14 | W 14 | W 13 | WNW 13 | WNW 15 | WNW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 218 | 211 | 204 | 166 | 166 | 88 | 126 | 121 | 78 | 44 | 26 | 10 | 4 | 4 | 2 | 4 | 4 | 3 | 17 | 121 | 253 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | off |
High Tide | 7:31AM1.78m | 7:50PM1.96m | 8:05AM1.78m | 8:25PM1.87m | 8:41AM1.73m | 9:03PM1.71m | |||||||||||||||
Low Tide | 1:39PM0.03m | 2:09AM0.09m | 2:12PM0.07m | 2:38AM0.17m | 2:49PM0.17m | ||||||||||||||||
 |  | | |  | | |  | |  | | |  |  |  | | | |  |  | | |
 | 7:22 | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — |
 | — | — | — | 7:12 | — | — | — | — | — | — | — | 7:08 | — | — | — | — | — | — | — | 7:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 9 | — | — | — | 2 | 1 | — |
Temp °C | 11 | 14 | 15 | 13 | 11 | 12 | 13 | 12 | 13 | 14 | 15 | 17 | 18 | 17 | 16 | 14 | 15 | 16 | 14 | 13 | 12 |
Feels °C | 7 | 10 | 11 | 9 | 7 | 7 | 8 | 5 | 6 | 7 | 8 | 10 | 11 | 10 | 13 | 9 | 9 | 10 | 9 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | WNW 12 | WNW 11 | WNW 11 | NW 11 | NW 11 | WNW 10 | NW 11 | NW 11 | WNW 11 | WNW 11 | NW 10 | WNW 10 | NW 10 | NW 10 | SE 6 | N 10 | W 14 | W 13 | WNW 13 | WNW 15 | WNW 14 |
| kJ | 218 | 211 | 204 | 166 | 166 | 88 | 126 | 121 | 78 | 44 | 26 | 10 | 4 | 4 | 105 | 2 | 4 | 3 | 17 | 121 | 253 |
Swell 2 Height (m) Direction Period (s) | N 12 | N 11 | — | — | — | NW 12 | — | — | — | N 10 | N 11 | W 12 | W 12 | N 10 | W 10 | W 14 | N 10 | N 9 | N 9 | SE 5 | N 10 |
| kJ | 3 | 3 | — | — | — | 53 | — | — | — | 2 | 2 | 3 | 3 | 2 | 2 | 4 | 2 | 2 | 2 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | N 11 | N 11 | — | N 10 | W 9 | — | — | — | N 10 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | 2 | 2 | — | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 2 | SE 3 | SE 4 | ESE 4 | ESE 5 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | SE 6 | — | SE 6 | SE 4 | SSE 4 | SE 4 | S 3 | SE 4 |
| kJ | — | — | — | 1 | 3 | 10 | 22 | 56 | 143 | 179 | 162 | 233 | 254 | 244 | — | 54 | 16 | 26 | 19 | 1 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2 | 2 | 2 | 122 | 336 | 336 | 336 | 390 | 751 | 266 | 266 | 803 | 336 | 688 | 162 | 273 | 9 | 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