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 (1.0m), 9s period with WNW swell.
The current surf forecast for Castlerock at 5PM is: 1.1m 9s primary swell from a West-northwest direction (forecast issued at 12:00pm 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 (1.0m) | 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 Sat night. Very mild (max 19°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sat 4 | Sunday 5 | Monday 6 | Tue 7 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | NW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 161 | 145 | 199 | 168 | 124 | 121 | 119 | 92 | 72 | 62 | 113 | 76 | 111 | 160 | 131 | 117 | 84 | 86 | 96 | 58 | 103 | 84 | 88 | 116 |
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-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | 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 | 11:10PM1.59m | ||||||||||||||||||
Low Tide | 3:32PM0.24m | 4:25AM0.47m | 4:04PM0.29m | 5:04AM0.49m | 4:42PM0.37m | 5:50AM0.50m | ||||||||||||||||||
 | |  | |  |  |  | | | | | | |  | | | | | | | | | | | |
 | 4:52 | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:54 | — | — | — | — | — | — | — | 4:56 | — |
 | — | — | — | — | 10:07 | — | — | — | — | — | — | — | 10:07 | — | — | — | — | — | — | — | 10:07 | — | — | 10:06 |
mm | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 16 | 16 | 15 | 14 | 14 | 14 | 15 | 16 | 17 | 17 | 15 | 15 | 15 | 15 | 16 | 18 | 19 | 19 | 16 | 15 | 15 | 15 |
Feels °C | 11 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 11 | 11 | 12 | 13 | 13 | 16 | 16 | 16 | 13 | 13 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | — | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 8 | NW 8 | WNW 8 | — | WNW 8 | WNW 8 | — | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 8 | WNW 9 |
| kJ | 161 | 145 | — | 168 | 124 | 121 | 119 | 92 | 72 | 62 | — | 76 | 111 | — | 131 | 117 | 84 | 86 | 96 | 58 | 103 | 84 | 88 | 116 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 10 | N 9 | N 9 | N 8 | N 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 2 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 3 | W 4 | WNW 9 | — | — | — | — | — | — | W 3 | WNW 8 | W 4 | W 4 | WNW 8 | SSW 3 | WSW 3 | WSW 3 | WSW 3 | — | W 4 | — | — | — | — |
| kJ | 7 | 13 | 199 | — | — | — | — | — | — | 7 | 113 | 12 | 9 | 160 | 1 | 3 | 2 | 3 | — | 7 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 414 | 442 | 409 | 187 | 387 | 144 | 144 | 0 | 9 | 9 | 334 | 334 | 187 | 162 | 9 | 9 | 9 | 9 | 187 | 162 | 9 | 9 | 9 | 9 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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