Surf Forecasts:
How big are the waves at Castlerock today (14 Jul):
- Morning surf: Morning surf (14 Jul, local time) - 1ft (0.3m), 9s period with NW swell.
- Afternoon surf: Afternoon surf (14 Jul, local time) - 0.5ft (0.2m), 11s period with WNW swell.
- Evening surf: Evening surf (14 Jul, local time) - 0.5ft (0.2m), 10s period with WNW swell.
The current surf forecast for Castlerock at 8AM is: 0.2m 12s primary swell from a West-northwest direction and 0.3m 9s secondary swell from a Northwest direction (forecast issued at 12:00am July 14). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Jul) | 1ft (0.3m) | 9s |
| Afternoon (14 Jul) | 0.5ft (0.2m) | 11s |
| Evening (14 Jul) | 0.5ft (0.2m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 14°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Tuesday 14 | Wednesday 15 | Thursday 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) | WNW 10 | NW 9 | NW 9 | NW 9 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | W 10 | W 9 | W 9 | W 9 | NW 9 | NW 9 | W 9 | W 10 | W 10 | W 10 | W 9 | W 9 | W 9 | NW 11 | NW 10 | WNW 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 9 | 14 | 15 | 13 | 12 | 20 | 10 | 9 | 2 | 2 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 5 | 4 | 10 |
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-on | cross | cross-on | cross-on | glassy | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | glassy | glassy | glassy | glassy | on | on | on | cross-on |
High Tide | 6:38AM1.64m | 7:03PM1.94m | 7:22AM1.64m | 7:49PM2.03m | 8:05AM1.61m | 8:34PM2.05m | ||||||||||||||||||
Low Tide | 00:52AM0.17m | 12:56PM0.12m | 1:43AM0.10m | 1:39PM0.05m | 2:30AM0.09m | 2:20PM0.01m | ||||||||||||||||||
 | |  | | |  | | | | | | | | | | | | | | | | | | | |
 | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:07 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:59 | — | — | — | — | — | — | — | 9:58 | — | — | — | — | — | — | — | 9:57 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 14 | 14 | 16 | 19 | 20 | 20 | 19 | 18 | 17 | 16 | 18 | 21 | 23 | 23 | 21 | 20 | 19 | 19 | 20 | 21 | 21 | 19 | 17 |
Feels °C | 15 | 12 | 12 | 14 | 16 | 17 | 18 | 18 | 18 | 16 | 15 | 17 | 20 | 22 | 22 | 20 | 20 | 19 | 19 | 20 | 20 | 20 | 18 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | NW 9 | NW 9 | NW 9 | WNW 9 | WNW 10 | WNW 8 | NW 7 | NW 7 | NW 7 | W 9 | — | NW 9 | NW 9 | NW 7 | NW 7 | W 7 | — | — | — | W 9 | NW 11 | NW 10 | WNW 10 |
| kJ | 9 | 14 | 13 | 13 | 8 | 20 | 6 | 2 | 2 | 2 | 2 | — | 3 | 3 | 2 | 2 | 1 | — | — | — | 2 | 5 | 4 | 10 |
Swell 2 Height (m) Direction Period (s) | NW 7 | — | ENE 4 | ENE 4 | WNW 11 | — | WNW 10 | WNW 10 | W 10 | W 9 | NW 6 | W 9 | — | NW 6 | W 9 | W 10 | W 10 | NW 7 | W 7 | W 7 | W 7 | W 6 | W 6 | N 13 |
| kJ | 2 | — | 1 | 1 | 12 | — | 10 | 9 | 2 | 2 | 2 | 2 | — | 1 | 2 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 3 |
Swell 3 Height (m) Direction Period (s) | — | NW 13 | WNW 12 | WNW 11 | — | — | — | W 18 | — | — | — | NW 6 | — | — | W 7 | — | W 10 | W 10 | W 9 | W 9 | — | W 9 | — | W 6 |
| kJ | — | 7 | 15 | 13 | — | — | — | 6 | — | — | — | 1 | — | — | 1 | — | 2 | 2 | 2 | 2 | — | 2 | — | 1 |
Wind waves Height (m) Direction Period (s) | — | ENE 3 | — | — | ENE 3 | ENE 3 | — | — | — | — | — | — | — | E 3 | — | — | — | — | — | — | — | — | — | NNW 3 |
| kJ | — | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 91 | 145 | 251 | 251 | 251 | 251 | 251 | 251 | 251 | 251 | 399 | 336 | 336 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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