Surf Forecasts:
How big are the waves at Castlerock today (06 Jul):
- Morning surf: Morning surf (06 Jul, local time) - 3ft (0.9m), 8s period with WNW swell.
- Afternoon surf: Afternoon surf (06 Jul, local time) - 3ft (0.9m), 8s period with WNW swell.
- Evening surf: Evening surf (06 Jul, local time) - 3ft (0.9m), 8s period with WNW swell.
The current surf forecast for Castlerock at 2PM is: 0.9m 8s primary swell from a West-northwest direction (forecast issued at 06:00am July 06). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (06 Jul) | 3ft (0.9m) | 8s |
| Afternoon (06 Jul) | 3ft (0.9m) | 8s |
| Evening (06 Jul) | 3ft (0.9m) | 8s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 21°C on Tue morning, min 15°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 6 | Tuesday 7 | Wednesday 8 | Thu 9 | |||||||||||||||||||||
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 | 1 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 75 | 84 | 105 | 108 | 111 | 108 | 108 | 123 | 150 | 147 | 107 | 119 | 121 | 103 | 83 | 71 | 54 | 55 | 55 | 33 | 42 | 35 | 34 | 33 |
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-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-on | on | on | on | glassy |
High Tide | 10:33AM1.32m | 11:10PM1.59m | 11:25AM1.26m | 00:02AM1.52m | 12:31PM1.21m | |||||||||||||||||||
Low Tide | 5:04AM0.49m | 4:42PM0.37m | 5:50AM0.50m | 5:29PM0.44m | 6:45AM0.51m | 6:32PM0.51m | ||||||||||||||||||
 |  | | |  | | |  | | | |  | | | | |  | | | | | | | | |
 | 4:54 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:56 | — | — | — | — | — | — | 4:58 |
 | — | — | — | — | — | — | 10:07 | — | — | — | — | — | — | — | 10:06 | — | — | — | — | — | — | — | 10:05 | 10:04 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 17 | 19 | 19 | 16 | 16 | 16 | 16 | 18 | 21 | 21 | 20 | 19 | 17 | 15 | 15 | 18 | 20 | 19 | 17 | 16 | 15 |
Feels °C | 10 | 11 | 11 | 15 | 17 | 16 | 13 | 12 | 13 | 14 | 15 | 17 | 18 | 18 | 18 | 15 | 13 | 14 | 18 | 20 | 18 | 15 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 9 | N 8 | N 7 | WNW 9 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 75 | 84 | 105 | 108 | 111 | 108 | 108 | 123 | 150 | 147 | 107 | 1 | 1 | 103 | 83 | 71 | 54 | 55 | 55 | 33 | 42 | 35 | 34 | 33 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | N 9 | — | N 8 | N 8 | N 8 | — | — | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | — | — | — | — |
| kJ | — | — | — | — | — | — | 2 | — | 1 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 3 | W 4 | WSW 3 | WSW 3 | — | — | SW 3 | WSW 3 | — | — | WSW 3 | WNW 9 | WNW 9 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 9 | 4 | 3 | — | — | 1 | 3 | — | — | 1 | 119 | 121 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 155 | 155 | 9 | 9 | 0 | 162 | 9 | 155 | 9 | 9 | 71 | 398 | 398 | 398 | 9 | 0 | 8 | 8 | 8 | 25 | 42 | 42 | 40 | 14 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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