Surf Forecasts:
How big are the waves at Castlerock today (14 Nov):
- Morning surf: Morning surf (14 Nov, local time) - 2.5ft (0.7m), 8s period with NW swell.
- 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 9AM is: 0.7m 8s primary swell from a Northwest direction and 0.1m 13s secondary swell from a West direction (forecast issued at 05:00am November 14). An open ocean swell of 0.4m 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) | 2.5ft (0.7m) | 8s |
| 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 ForecastModerate rain (total 19mm), heaviest on Mon night. Very mild (max 10°C on Sat afternoon, min 3°C on Mon morning). Winds increasing (calm on Sun night, near gales from the SE by Mon night). | ||||||||||||||||||||||||||
Saturday 14 | Sunday 15 | Monday 16 | Tue 17 | |||||||||||||||||||||||
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 | 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 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 12 | N 12 | NNW 12 | NNW 11 | N 11 |
Wave Graph  | ||||||||||||||||||||||||||
 kJ | 56 | 57 | 60 | 69 | 112 | 128 | 90 | 84 | 65 | 123 | 524 | 952 | 1098 | 730 | 346 | 156 | 208 | 172 | 116 | 75 | 58 | 30 | 12 | 27 | 12 | 11 |
Wind (km/h) | ||||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | cross-on | on | on | on | on | on | on | cross-on | glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off |
High Tide | 8:21AM1.52m | 8:23PM1.26m | 9:05AM1.42m | 9:02PM1.17m | 10:02AM1.33m | 9:56PM1.08m | ||||||||||||||||||||
Low Tide | 2:05AM0.39m | 3:00PM0.58m | 2:43AM0.47m | 3:57PM0.68m | 3:34AM0.54m | 5:11PM0.74m | 4:44AM0.60m | |||||||||||||||||||
 | |  | | | | | | |  |  | | | | | | | |  | | | |  | | | | |
 | — | 7:56 | — | — | — | — | — | — | — | 7:58 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:02 |
 | — | — | — | — | 4:24 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | — | — | — | 4:22 | — | — | — | — | 4:20 |
mm | — | — | — | — | — | — | — | — | — | 2 | 1 | — | — | — | — | 1 | — | 1 | — | — | — | — | 7 | 3 | 2 | 2 |
Temp °C | 6 | 6 | 5 | 9 | 10 | 9 | 9 | 10 | 9 | 9 | 8 | 7 | 7 | 7 | 6 | 5 | 5 | 4 | 3 | 5 | 5 | 6 | 5 | 7 | 8 | 9 |
Feels °C | 0 | 0 | -1 | 4 | 4 | 2 | 2 | 5 | 4 | 7 | 0 | -4 | -4 | -2 | 0 | -1 | 0 | 1 | -1 | -1 | -3 | -5 | -7 | -5 | -1 | 6 |
Swell 1 Height (m) Direction Period (s) | NW 7 | NW 8 | NW 8 | NW 8 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | N 16 | W 12 | — | N 14 | NNW 7 | NNW 7 | NNW 9 | NNW 9 | NNW 9 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 12 | NNW 11 | E 6 |
| kJ | 56 | 57 | 60 | 69 | 112 | 128 | 90 | 84 | 65 | 123 | 174 | 3 | — | 98 | 346 | 156 | 208 | 172 | 116 | 75 | 58 | 25 | 12 | 27 | 12 | 199 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 14 | W 13 | W 13 | W 13 | W 12 | W 8 | WNW 10 | W 13 | NNW 16 | — | — | — | — | NNW 14 | NNW 10 | NNW 13 | NNW 13 | NNW 13 | NNW 12 | NNW 13 | NNW 12 | N 12 | W 10 | W 10 | N 11 |
| kJ | 4 | 4 | 4 | 3 | 3 | 3 | 1 | 20 | 3 | 53 | — | — | — | — | 64 | 80 | 57 | 32 | 31 | 30 | 31 | 30 | 11 | 2 | 2 | 9 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | W 12 | — | W 9 | SSE 4 | — | — | — | — | W 11 | NNW 14 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 | — | — | NNW 11 |
| kJ | — | — | — | — | — | — | 3 | — | 2 | 1 | — | — | — | — | 2 | 62 | 2 | 9 | 9 | 8 | 8 | 2 | 2 | — | — | 11 |
Wind waves Height (m) Direction Period (s) | S 2 | SSE 3 | SSE 3 | SSE 3 | S 3 | S 3 | S 3 | SSE 3 | SSE 3 | SSW 3 | NNW 8 | NNW 8 | NNW 8 | NNW 8 | — | — | — | — | — | — | ESE 3 | ESE 4 | ESE 6 | E 7 | E 7 | — |
| kJ | 1 | 1 | 3 | 3 | 5 | 5 | 6 | 4 | 3 | 1 | 524 | 952 | 1098 | 730 | — | — | — | — | — | — | 3 | 25 | 209 | 465 | 349 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 334 | 194 | 185 | 0 | 0 | 9 | 254 | 311 | 300 | 398 | 72 | 114 | 114 | 0 | 0 | 2 | 283 | 305 | 306 | 156 | 91 | 14 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||||
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