Surf Forecasts:
How big are the waves at Castlerock today (13 Nov):
- Afternoon surf: Afternoon surf (13 Nov, local time) - 2.5ft (0.7m), 6s period with NW swell.
- Evening surf: Evening surf (13 Nov, local time) - 2.5ft (0.7m), 6s period with NW swell.
The current surf forecast for Castlerock at 9PM is: 0.7m 6s primary swell from a Northwest direction and 0.1m 15s secondary swell from a West direction (forecast issued at 05:00pm November 13). The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Nov) | - | - |
| Afternoon (13 Nov) | 2.5ft (0.7m) | 6s |
| Evening (13 Nov) | 2.5ft (0.7m) | 6s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Sat night. Mild temperatures (max 9°C on Sat afternoon, min 5°C on Fri night). Winds decreasing (near gales from the N on Sun morning, calm by Mon morning). | ||||||||||||||||||||||
Fri 13 | Saturday 14 | Sunday 15 | Mon 16 | |||||||||||||||||||
3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | |
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 6 | NW 6 | NW 6 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 10 | NW 9 | NW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 8 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 34 | 37 | 40 | 47 | 56 | 57 | 60 | 69 | 112 | 128 | 131 | 84 | 83 | 110 | 645 | 1503 | 1872 | 1134 | 669 | 356 | 193 | 155 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off | off | cross-off | on | on | on | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:50PM1.36m | 8:21AM1.52m | 8:23PM1.26m | 9:05AM1.42m | 9:02PM1.17m | |||||||||||||||||
Low Tide | 2:16PM0.46m | 2:05AM0.39m | 3:00PM0.58m | 2:43AM0.47m | 3:57PM0.68m | 3:34AM0.54m | ||||||||||||||||
 |  |  | | | |  | | | | | |  | |  | | | | | | | | |
 | — | — | — | — | — | 7:56 | — | — | — | — | — | — | — | 7:58 | — | — | — | — | — | — | — | 8:00 |
 | 4:27 | — | — | — | — | — | — | — | 4:24 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | 4:22 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 2 | — | — | — | — | — | — | — |
Temp °C | 8 | 8 | 7 | 5 | 6 | 6 | 5 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 6 | 5 | 5 |
Feels °C | 3 | 4 | 2 | -1 | 0 | 0 | -1 | 2 | 3 | 3 | 3 | 4 | 4 | 6 | 0 | -5 | -6 | -5 | -4 | -3 | -2 | 0 |
Swell 1 Height (m) Direction Period (s) | NW 6 | NW 6 | NW 6 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 10 | NW 9 | NW 9 | NNW 9 | NNW 16 | — | — | — | NNW 14 | NNW 8 | NNW 7 | NNW 8 |
| kJ | 34 | 37 | 40 | 47 | 56 | 57 | 60 | 69 | 112 | 128 | 131 | 84 | 83 | 110 | 80 | — | — | — | 64 | 356 | 193 | 155 |
Swell 2 Height (m) Direction Period (s) | NNW 8 | N 9 | W 15 | W 15 | W 15 | W 14 | W 13 | W 13 | W 13 | W 12 | W 7 | W 9 | W 11 | NNW 16 | — | — | — | — | W 11 | NNW 14 | NNW 13 | NNW 13 |
| kJ | 14 | 6 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 1 | 2 | 2 | 26 | — | — | — | — | 2 | 62 | 59 | 34 |
Swell 3 Height (m) Direction Period (s) | NW 8 | — | — | — | — | — | — | — | — | — | W 12 | W 12 | W 13 | W 13 | — | — | — | — | — | W 11 | W 11 | W 11 |
| kJ | 2 | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 3 | — | — | — | — | — | 2 | 9 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 2 | S 3 | SSE 3 | SSE 3 | SSE 3 | SSE 3 | S 3 | SSE 3 | SSE 4 | SSE 4 | NNW 9 | NNW 8 | NNW 9 | NNW 8 | NNW 8 | — | — | — |
| kJ | — | — | — | — | 1 | 1 | 3 | 3 | 3 | 3 | 5 | 3 | 4 | 1 | 645 | 1503 | 1872 | 1134 | 669 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 27 | 27 | 27 | 8 | 0 | 0 | 0 | 0 | 0 | 334 | 185 | 0 | 0 | 0 | 192 | 311 | 377 | 422 | 300 | 251 | 187 | 114 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||
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