Surf Forecasts:
How big are the waves at Castlerock today (04 Jul):
- Morning surf: Morning surf (04 Jul, local time) - 3ft (0.9m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (04 Jul, local time) - 3ft (0.9m), 9s period with WNW swell.
- Evening surf: Evening surf (04 Jul, local time) - 3.5ft (1.1m), 9s period with WNW swell.
The current surf forecast for Castlerock at 5AM is: 1.1m 10s primary swell from a Northwest direction (forecast issued at 12:00am July 04). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (04 Jul) | 3ft (0.9m) | 10s |
| Afternoon (04 Jul) | 3ft (0.9m) | 9s |
| Evening (04 Jul) | 3.5ft (1.1m) | 9s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Warm (max 20°C on Mon afternoon, min 14°C on Fri night). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 4 | Sunday 5 | Monday 6 | ||||||||||||||||||||||
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 | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | NW 10 | NW 10 | WNW 10 | NW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | NW 8 | WNW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 204 | 229 | 168 | 134 | 145 | 141 | 227 | 194 | 165 | 135 | 96 | 74 | 59 | 58 | 58 | 116 | 108 | 120 | 128 | 128 | 103 | 84 | 69 | 84 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:12AM1.43m | 9:49PM1.68m | 9:50AM1.38m | 10:27PM1.64m | 10:33AM1.32m | |||||||||||||||||||
Low Tide | 3:50AM0.44m | 3:32PM0.24m | 4:25AM0.47m | 4:04PM0.29m | 5:04AM0.49m | 4:42PM0.37m | ||||||||||||||||||
 | |  |  | | |  | | | | | | | | | |  | | | | | | | | |
 | — | 4:52 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 10:07 | — | — | — | — | — | — | — | 10:07 | — | — | — | — | — | — | — | 10:07 |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 16 | 16 | 17 | 17 | 15 | 14 | 14 | 14 | 14 | 15 | 19 | 18 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 20 | 19 | 17 |
Feels °C | 11 | 13 | 13 | 12 | 13 | 14 | 11 | 10 | 11 | 12 | 12 | 13 | 17 | 15 | 11 | 12 | 11 | 11 | 12 | 14 | 14 | 17 | 16 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | WNW 10 | NW 10 | WNW 9 | WNW 9 | — | — | WNW 9 | WNW 9 | WNW 9 | NW 8 | WNW 8 | WNW 8 | WNW 8 | — | WNW 8 | WNW 8 | — | WNW 8 | WNW 8 | WNW 8 | NW 8 | WNW 8 |
| kJ | 204 | 229 | 168 | 134 | 145 | 141 | — | — | 165 | 135 | 96 | 74 | 59 | 58 | 58 | — | 108 | 120 | — | 128 | 103 | 84 | 69 | 84 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 10 | N 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WNW 3 | — | — | W 3 | W 4 | W 4 | WNW 9 | WNW 9 | — | — | — | WSW 3 | W 3 | W 4 | W 4 | WNW 8 | W 4 | W 3 | WNW 8 | — | — | WSW 3 | W 3 | W 4 |
| kJ | 3 | — | — | 7 | 12 | 9 | 227 | 194 | — | — | — | 2 | 5 | 9 | 9 | 116 | 9 | 5 | 128 | — | — | 1 | 6 | 6 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 9 | 398 | 398 | 404 | 772 | 833 | 387 | 144 | 0 | 0 | 9 | 336 | 336 | 354 | 349 | 162 | 155 | 9 | 9 | 9 | 391 | 187 | 162 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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