Surf Forecasts:
How big are the waves at Castlerock today (07 Jul):
- Morning surf: Morning surf (07 Jul, local time) - 2.5ft (0.8m), 9s period with WNW swell.
- Afternoon surf: Afternoon surf (07 Jul, local time) - 3ft (0.9m), 9s period with WNW swell.
- Evening surf: Evening surf (07 Jul, local time) - 2.5ft (0.7m), 9s period with NW swell.
The current surf forecast for Castlerock at 5PM is: 0.9m 9s primary swell from a West-northwest direction and 0.1m 7s secondary swell from a North direction (forecast issued at 12:00pm July 07). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Jul) | 2.5ft (0.8m) | 9s |
| Afternoon (07 Jul) | 3ft (0.9m) | 9s |
| Evening (07 Jul) | 2.5ft (0.7m) | 9s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Tue morning, min 13°C on Tue night). Wind will be generally light. | ||||||||||||||||||||||||
Tue 7 | Wednesday 8 | Thursday 9 | Fri 10 | |||||||||||||||||||||
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 | 4 AM | 7 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | NW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 99 | 99 | 121 | 103 | 83 | 71 | 55 | 55 | 56 | 59 | 52 | 44 | 36 | 35 | 32 | 32 | 47 | 48 | 32 | 31 | 26 | 16 | 15 | 35 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | glassy | glassy | glassy | cross-on | on | cross-on | cross | off | off | off | cross-off | glassy | on | on | cross-on | glassy | glassy | glassy |
High Tide | 11:25AM1.26m | 00:02AM1.52m | 12:31PM1.21m | 1:10AM1.46m | 1:56PM1.21m | 2:30AM1.44m | ||||||||||||||||||
Low Tide | 5:29PM0.44m | 6:45AM0.51m | 6:32PM0.51m | 7:52AM0.51m | 7:51PM0.55m | |||||||||||||||||||
 |  | | | |  | |  | | | | | |  | | | | | | | | |  | | |
 | 4:56 | — | — | — | — | — | 4:56 | — | — | — | — | — | — | — | 4:58 | — | — | — | — | — | — | — | 5:00 | — |
 | — | — | — | — | 10:06 | — | — | — | — | — | — | — | 10:05 | — | — | — | — | — | — | — | 10:04 | — | — | 10:04 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 20 | 20 | 19 | 17 | 15 | 13 | 13 | 15 | 16 | 16 | 16 | 15 | 15 | 16 | 16 | 18 | 20 | 19 | 17 | 16 | 15 | 16 | 16 |
Feels °C | 14 | 17 | 17 | 17 | 16 | 15 | 13 | 13 | 16 | 16 | 14 | 15 | 15 | 14 | 15 | 16 | 18 | 21 | 19 | 16 | 16 | 15 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | N 7 | N 7 | NW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | NW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 12 |
| kJ | 99 | 99 | 1 | 1 | 83 | 71 | 55 | 55 | 56 | 59 | 52 | 44 | 36 | 35 | 32 | 32 | 47 | 48 | 32 | 31 | 26 | 16 | 15 | 35 |
Swell 2 Height (m) Direction Period (s) | N 8 | N 7 | — | — | N 7 | N 7 | N 7 | N 7 | N 7 | N 7 | — | — | — | — | — | — | — | — | — | — | — | NW 14 | NW 12 | WNW 9 |
| kJ | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 7 | 6 | 15 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 3 | W 3 | WNW 9 | WNW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 3 | 121 | 103 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 398 | 398 | 9 | 9 | 150 | 8 | 8 | 8 | 42 | 42 | 40 | 16 | 14 | 16 | 16 | 16 | 16 | 42 | 42 | 40 | 40 | 16 | 8 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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