Surf Forecasts:
How big are the waves at Castlerock today (14 Sep):
- Morning surf: Morning surf (14 Sep, local time) - 1.5ft (0.5m), 9s period with NW swell.
- Afternoon surf: Afternoon surf (14 Sep, local time) - 1.5ft (0.5m), 9s period with NW swell.
- Evening surf: Evening surf (14 Sep, local time) - 1.5ft (0.5m), 10s period with WNW swell.
The current surf forecast for Castlerock at 5AM is: 0.6m 9s primary swell from a Northwest direction and 0.2m 13s secondary swell from a North direction (forecast issued at 12:00am September 14). The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 1.5ft (0.5m) | 9s |
| Afternoon (14 Sep) | 1.5ft (0.5m) | 9s |
| Evening (14 Sep) | 1.5ft (0.5m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Mon afternoon. Very mild (max 18°C on Mon morning, min 13°C on Mon night). Winds increasing (light winds from the S on Mon afternoon, fresh winds from the WNW by Tue night). | ||||||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||||||||||
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 | 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 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 11 | WNW 10 | WNW 10 | NW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 87 | 65 | 50 | 38 | 36 | 28 | 65 | 59 | 60 | 31 | 44 | 40 | 75 | 196 | 85 | 124 | 178 | 226 | 233 | 606 | 362 | 273 | 181 | 118 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | off |
High Tide | 8:23AM1.69m | 8:45PM1.78m | 8:53AM1.63m | 9:13PM1.60m | 9:24AM1.54m | 9:41PM1.41m | ||||||||||||||||||
Low Tide | 2:38AM0.15m | 2:39PM0.09m | 3:04AM0.25m | 3:12PM0.22m | 3:29AM0.36m | 3:47PM0.38m | ||||||||||||||||||
 |  |  | |  |  |  | |  |  |  | |  | | | |  | | | | | | | | |
 | — | 6:56 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — |
 | — | — | — | — | — | — | 7:47 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:43 | — |
mm | — | — | — | — | — | 6 | 1 | — | 1 | — | — | 1 | 1 | 1 | — | — | 1 | 1 | 1 | — | — | — | — | 1 |
Temp °C | 15 | 14 | 14 | 16 | 18 | 16 | 17 | 16 | 14 | 13 | 13 | 14 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 14 | 13 |
Feels °C | 13 | 12 | 12 | 14 | 16 | 15 | 14 | 12 | 10 | 9 | 8 | 10 | 7 | 9 | 7 | 7 | 6 | 7 | 7 | 8 | 9 | 11 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 11 | WNW 10 | WNW 10 | WNW 6 | WNW 11 | WNW 10 | WNW 10 | N 9 | N 9 | WNW 10 | NW 12 | WNW 12 | WNW 11 | — | NW 10 | NW 10 | NW 10 | NW 9 |
| kJ | 87 | 65 | 50 | 38 | 36 | 28 | 65 | 59 | 60 | 14 | 44 | 40 | 75 | 2 | 2 | 37 | 39 | 94 | 160 | — | 362 | 273 | 181 | 118 |
Swell 2 Height (m) Direction Period (s) | N 14 | N 13 | N 13 | N 13 | N 13 | N 13 | N 12 | N 12 | N 12 | WNW 9 | NW 5 | N 9 | N 9 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 14 | 14 | 32 | 14 | 13 | 13 | 26 | 11 | 11 | 17 | 14 | 7 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | N 10 | N 9 | N 9 | — | — | — | NW 11 | N 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 2 | 2 | 2 | — | — | — | 31 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SSE 2 | SSE 2 | SSE 2 | SSE 2 | SSE 2 | SSE 2 | SSW 3 | W 4 | SW 3 | WNW 4 | WNW 4 | WNW 10 | NW 5 | NW 6 | NW 7 | NW 7 | NW 7 | NW 11 | — | — | — | SW 2 |
| kJ | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 2 | 6 | 2 | 24 | 15 | 196 | 85 | 124 | 178 | 226 | 233 | 606 | — | — | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 8 | 8 | 14 | 0 | 0 | 187 | 9 | 751 | 366 | 1092 | 772 | 300 | 408 | 440 | 349 | 157 | 144 | 159 | 187 | 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