Surf Forecasts:
How big are the waves at Castlerock today (10 Nov):
- Morning surf: Morning surf (10 Nov, local time) - 1.5ft (0.4m), 10s period with NW swell.
- Afternoon surf: Afternoon surf (10 Nov, local time) - 1.5ft (0.4m), 9s period with NW swell.
- Evening surf: Evening surf (10 Nov, local time) - 1ft (0.3m), 9s period with NW swell.
The current surf forecast for Castlerock at 4PM is: 0.4m 9s primary swell from a Northwest direction (forecast issued at 11:00am November 10). The wind direction is predicted to be cross-shore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Nov) | 1.5ft (0.4m) | 10s |
| Afternoon (10 Nov) | 1.5ft (0.4m) | 9s |
| Evening (10 Nov) | 1ft (0.3m) | 9s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Mild temperatures (max 9°C on Tue morning, min 7°C on Tue night). Winds increasing (light winds from the ENE on Tue night, fresh winds from the N by Wed night). | ||||||||||||||||||||||||
Tue 10 | Wednesday 11 | Thursday 12 | Fri 13 | |||||||||||||||||||||
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 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 7 | NNW 6 | NNW 5 | NNW 5 | NNW 5 | N 5 | N 6 | N 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 9 | NNW 6 | NNW 6 | NNW 6 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 24 | 23 | 23 | 13 | 12 | 12 | 12 | 12 | 9 | 12 | 17 | 22 | 31 | 92 | 141 | 184 | 186 | 186 | 166 | 157 | 254 | 101 | 85 | 75 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | on | on | on | on | cross-on |
High Tide | 6:06AM1.74m | 6:19PM1.63m | 6:37AM1.73m | 6:49PM1.55m | 7:09AM1.69m | 7:19PM1.46m | ||||||||||||||||||
Low Tide | 12:28PM0.21m | 00:33AM0.21m | 1:02PM0.26m | 1:02AM0.26m | 1:38PM0.35m | 1:32AM0.32m | ||||||||||||||||||
 | | |  |  |  | | |  | | | | | | | | |  | | | | | | | |
 | 7:48 | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:54 |
 | — | — | 4:31 | — | — | — | — | — | — | — | 4:30 | — | — | — | — | — | — | — | 4:28 | — | — | — | — | 4:27 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 8 | 9 | 9 | 8 | 8 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 9 | 8 | 7 | 7 | 7 | 9 | 8 | 8 | 8 | 8 | 7 | 7 |
Feels °C | 4 | 6 | 6 | 5 | 4 | 3 | 4 | 4 | 4 | 5 | 3 | 2 | 2 | -1 | -2 | -1 | 0 | 1 | 0 | 1 | 2 | 2 | 2 | 2 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NNW 7 | NNW 6 | N 8 | NW 8 | NW 8 | — | N 10 | — | N 14 | NNW 13 | NNW 13 | NNW 12 | NNW 9 | NNW 9 | NNW 6 | NNW 6 |
| kJ | 24 | 23 | 23 | 13 | 12 | 12 | 12 | 12 | 9 | 12 | 5 | 3 | 2 | — | 2 | — | 4 | 34 | 55 | 51 | 254 | 86 | 85 | 75 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 15 | — | — | — | W 16 | W 15 | N 3 | ENE 3 | E 3 | NW 8 | N 7 | — | — | — | — | — | — | — | — | NNW 12 | — | NNW 9 | NNW 9 |
| kJ | 4 | 4 | — | — | — | 5 | 5 | 1 | 1 | 1 | 3 | 1 | — | — | — | — | — | — | — | — | 50 | — | 62 | 58 |
Swell 3 Height (m) Direction Period (s) | — | — | W 14 | W 16 | W 16 | — | — | N 9 | NW 9 | N 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 4 | 5 | 5 | — | — | 2 | 3 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | NNE 3 | ENE 3 | — | — | NNW 5 | NNW 5 | NNW 5 | N 5 | N 6 | N 6 | NNW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 6 | NNW 6 | — | — |
| kJ | — | — | — | — | — | — | 1 | 1 | — | — | 17 | 22 | 31 | 92 | 141 | 184 | 186 | 186 | 166 | 157 | 93 | 101 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 16 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 184 | 180 | 180 | 252 | 260 | 260 | 303 | 131 | 399 | 131 | 114 | 107 | 121 | 122 | 107 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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