Surf Forecasts:
How big are the waves at Castlerock today (14 Nov):
- Afternoon surf: Afternoon surf (14 Nov, local time) - 3ft (0.9m), 9s period with NW swell.
- Evening surf: Evening surf (14 Nov, local time) - 2.5ft (0.7m), 9s period with NW swell.
The current surf forecast for Castlerock at 9PM is: 0.7m 9s primary swell from a Northwest direction and 0.2m 9s secondary swell from a West direction (forecast issued at 05:00pm November 14). An open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Nov) | - | - |
| Afternoon (14 Nov) | 3ft (0.9m) | 9s |
| Evening (14 Nov) | 2.5ft (0.7m) | 9s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 25mm), heaviest during Mon night. Very mild (max 10°C on Sat afternoon, min 5°C on Sun night). Winds increasing (light winds from the NE on Mon morning, near gales from the ESE by Mon night). | ||||||||||||||||||||||
Sat 14 | Sunday 15 | Monday 16 | Tue 17 | |||||||||||||||||||
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 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 9 | NNW 8 | NNW 7 | NNW 7 | NNW 8 | NW 10 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | N 12 | NNW 9 | NNW 11 |
Wave Graph  | ||||||||||||||||||||||
 kJ | 112 | 128 | 90 | 84 | 83 | 141 | 334 | 459 | 588 | 591 | 327 | 686 | 463 | 255 | 192 | 122 | 73 | 43 | 23 | 10 | 8 | 12 |
Wind (km/h) | ||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-on | on | on | on | cross-on | cross-on | on | on | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:23PM1.26m | 9:05AM1.42m | 9:02PM1.17m | 10:02AM1.33m | 9:56PM1.08m | |||||||||||||||||
Low Tide | 3:00PM0.58m | 2:43AM0.47m | 3:57PM0.68m | 3:34AM0.54m | 5:11PM0.74m | 4:44AM0.60m | ||||||||||||||||
 |  | |  | | | | | | | | | | |  | | | | | |  | | |
 | — | — | — | — | — | 7:58 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:02 |
 | 4:24 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | 4:20 |
mm | — | — | — | 1 | — | 1 | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 3 | 8 | 5 |
Temp °C | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 8 | 7 | 6 | 6 | 6 | 5 | 5 | 5 | 6 | 5 | 5 | 6 | 5 | 5 | 6 |
Feels °C | 3 | 4 | 3 | 3 | 4 | 4 | 2 | -2 | -3 | -4 | -4 | -3 | -2 | -1 | 1 | 2 | -2 | -4 | -4 | -6 | -6 | -4 |
Swell 1 Height (m) Direction Period (s) | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 9 | N 16 | N 15 | NNW 14 | N 14 | NW 10 | W 11 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 11 |
| kJ | 112 | 128 | 90 | 84 | 83 | 141 | 174 | 209 | 69 | 97 | 264 | 9 | 463 | 255 | 192 | 122 | 73 | 43 | 23 | 6 | 8 | 12 |
Swell 2 Height (m) Direction Period (s) | W 13 | W 12 | W 9 | W 9 | W 9 | NNW 16 | W 12 | W 12 | — | — | NNW 14 | — | NNW 14 | NNW 13 | NNW 13 | NNW 13 | NNW 12 | N 12 | N 12 | N 12 | N 11 | — |
| kJ | 3 | 3 | 6 | 6 | 2 | 53 | 3 | 3 | — | — | 65 | — | 38 | 34 | 33 | 32 | 30 | 26 | 11 | 10 | 2 | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 12 | — | W 13 | SSE 3 | — | — | — | — | — | — | — | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | — | — |
| kJ | — | — | 3 | — | 3 | 1 | — | — | — | — | — | — | — | 2 | 9 | 8 | 8 | 2 | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | SSE 3 | S 3 | SSE 4 | SSE 3 | — | NNW 8 | NNW 7 | NNW 7 | NNW 8 | NNW 7 | NNW 9 | — | — | — | — | SE 2 | ESE 4 | ESE 5 | ESE 7 | ESE 7 | ESE 7 |
| kJ | 3 | 3 | 5 | 4 | 3 | — | 334 | 459 | 588 | 591 | 327 | 686 | — | — | — | — | 1 | 16 | 143 | 469 | 615 | 435 |
Nearest Offshore or Glassy | ||||||||||||||||||||||
Distance (km) | 425 | 194 | 185 | 0 | 0 | 300 | 192 | 309 | 328 | 377 | 300 | 300 | 251 | 107 | 4 | 0 | 2 | 266 | 305 | 381 | 184 | 109 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||
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