Surf Forecasts:
How big are the waves at Castlerock today (26 Jul):
- Afternoon surf: Afternoon surf (26 Jul, local time) - 6ft (1.8m), 10s period with NW swell.
- Evening surf: Evening surf (26 Jul, local time) - 5.5ft (1.7m), 10s period with NW swell.
The current surf forecast for Castlerock at 9PM is: 1.7m 10s primary swell from a Northwest direction and 1.5m 10s secondary swell from a Northwest direction (forecast issued at 06:00pm July 26). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (26 Jul) | - | - |
| Afternoon (26 Jul) | 6ft (1.8m) | 10s |
| Evening (26 Jul) | 5.5ft (1.7m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Tue afternoon. Very mild (max 19°C on Tue morning, min 13°C on Sun night). Winds decreasing (fresh winds from the WNW on Sun afternoon, light winds from the WSW by Mon afternoon). | |||||||||||||||||||
Sun 26 | Monday 27 | Tuesday 28 | |||||||||||||||||
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 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 597 | 557 | 442 | 362 | 335 | 260 | 234 | 196 | 142 | 139 | 94 | 90 | 56 | 55 | 90 | 113 | 90 | 70 | 68 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:36PM1.44m | 5:46AM1.34m | 6:12PM1.55m | 6:18AM1.42m | 6:45PM1.66m | ||||||||||||||
Low Tide | 00:07AM0.49m | 12:07PM0.38m | 00:44AM0.41m | 12:41PM0.27m | |||||||||||||||
 |  |  |  |  |  | | | | |  | | | | | |  | | | |
 | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | 9:42 | — | — | — | — | — | — | — | 9:39 | — | — | — | — | — | — | — | 9:38 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 1 | — | — | — | 1 | 3 | 2 |
Temp °C | 15 | 15 | 14 | 13 | 13 | 13 | 16 | 15 | 17 | 16 | 16 | 17 | 18 | 18 | 18 | 19 | 17 | 16 | 16 |
Feels °C | 9 | 10 | 10 | 10 | 9 | 10 | 13 | 14 | 16 | 16 | 16 | 16 | 16 | 15 | 14 | 16 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | — | — | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 |
| kJ | — | — | 442 | 362 | 335 | 260 | 234 | 196 | 142 | 139 | 94 | 90 | 56 | 55 | 90 | 113 | 90 | 70 | 68 |
Swell 2 Height (m) Direction Period (s) | — | — | — | N 9 | N 9 | N 10 | N 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | N 9 | N 9 | N 9 | N 9 |
| kJ | — | — | — | 6 | 6 | 16 | 17 | 18 | 18 | 19 | 19 | 17 | 16 | 8 | 8 | 6 | 6 | 1 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 10 | NW 10 | — | — | — | — | — | — | — | — | — | — | — | — | WSW 3 | SSW 3 | — | — | — |
| kJ | 597 | 557 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 2 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 398 | 443 | 408 | 398 | 387 | 387 | 54 | 9 | 0 | 0 | 9 | 27 | 0 | 0 | 0 | 9 | 9 | 9 | 0 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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