Surf Forecasts:
How big are the waves at Castlerock today (01 Aug):
- Morning surf: Morning surf (01 Aug, local time) - 2.5ft (0.7m), 7s period with NW swell.
- Afternoon surf: Afternoon surf (01 Aug, local time) - 3ft (0.9m), 7s period with NW swell.
- Evening surf: Evening surf (01 Aug, local time) - 2.5ft (0.7m), 7s period with NW swell.
The current surf forecast for Castlerock at 5AM is: 0.6m 6s primary swell from a West-northwest direction and 0.1m 7s secondary swell from a North direction (forecast issued at 12:00am August 01). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 Aug) | 2.5ft (0.7m) | 7s |
| Afternoon (01 Aug) | 3ft (0.9m) | 7s |
| Evening (01 Aug) | 2.5ft (0.7m) | 7s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Mon morning. Very mild (max 16°C on Sat afternoon, min 11°C on Fri night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | ||||||||||||||||||||||
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) | WNW 7 | WNW 7 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NNW 9 | NNW 9 | ENE 4 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 30 | 29 | 33 | 44 | 65 | 75 | 63 | 44 | 45 | 63 | 63 | 77 | 77 | 65 | 48 | 46 | 28 | 27 | 19 | 16 | 15 | 15 | 16 | 9 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross | cross-off | cross-off | off | cross-off | cross | cross-on | cross | cross-off | off | cross-off | cross-off | cross-on | cross | cross | cross-on | cross-on |
High Tide | 8:18AM1.57m | 8:48PM1.86m | 8:51AM1.56m | 9:20PM1.82m | 9:26AM1.52m | 9:54PM1.75m | ||||||||||||||||||
Low Tide | 2:49AM0.28m | 2:36PM0.10m | 3:18AM0.30m | 3:03PM0.14m | 3:47AM0.32m | 3:32PM0.20m | ||||||||||||||||||
 | |  |  | | |  |  | | | | | | | |  | | | |  | | | |  | |
 | — | 5:33 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:30 | — | — | — | — | — | — | — | 9:29 | — | — | — | — | — | — | — | 9:27 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | 2 | 1 | 1 | — | — |
Temp °C | 11 | 11 | 12 | 14 | 15 | 16 | 15 | 13 | 12 | 11 | 11 | 13 | 15 | 16 | 16 | 16 | 14 | 12 | 12 | 12 | 13 | 13 | 14 | 14 |
Feels °C | 8 | 7 | 9 | 9 | 10 | 11 | 11 | 11 | 10 | 10 | 10 | 12 | 13 | 14 | 14 | 14 | 12 | 10 | 11 | 9 | 10 | 10 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 7 | WNW 7 | NW 6 | N 7 | — | — | — | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NNW 9 | NNW 9 |
| kJ | 30 | 29 | 33 | 1 | — | — | — | 44 | 45 | 63 | 63 | 77 | 77 | 65 | 48 | 46 | 28 | 27 | 19 | 16 | 12 | 7 | 16 | 8 |
Swell 2 Height (m) Direction Period (s) | N 7 | N 7 | N 7 | — | — | — | — | N 9 | N 9 | N 9 | NNW 9 | N 9 | N 9 | — | N 8 | N 8 | N 8 | NNW 8 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NW 7 | NW 7 |
| kJ | 1 | 1 | 1 | — | — | — | — | 2 | 6 | 6 | 8 | 6 | 6 | — | 5 | 5 | 5 | 12 | 13 | 13 | 15 | 15 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | N 6 | — | — | — | — | — | — | N 7 | — | — | — | — | — | — | — | — | — | — | W 10 | — | W 9 | W 10 | — | — |
| kJ | 1 | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 2 | — | 2 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NW 7 | NW 7 | NW 7 | NW 7 | — | — | — | — | — | — | — | — | — | — | — | — | ENE 3 | E 4 | E 4 | ENE 4 | ENE 4 |
| kJ | — | — | — | 44 | 65 | 75 | 63 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 7 | 8 | 5 | 9 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 172 | 185 | 162 | 391 | 409 | 409 | 187 | 27 | 8 | 0 | 0 | 0 | 2 | 2 | 8 | 8 | 40 | 40 | 40 | 41 | 40 | 40 | 40 | 40 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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