Surf Forecasts:
How big are the waves at Castlerock today (02 Aug):
- Morning surf: Morning surf (02 Aug, local time) - 2.5ft (0.8m), 8s period with NW swell.
- Afternoon surf: Afternoon surf (02 Aug, local time) - 2.5ft (0.8m), 8s period with NW swell.
- Evening surf: Evening surf (02 Aug, local time) - 2ft (0.6m), 8s period with NW swell.
The current surf forecast for Castlerock at 6AM is: 0.8m 8s primary swell from a Northwest direction and 0.2m 9s secondary swell from a North direction (forecast issued at 12:00am August 02). The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (02 Aug) | 2.5ft (0.8m) | 8s |
| Afternoon (02 Aug) | 2.5ft (0.8m) | 8s |
| Evening (02 Aug) | 2ft (0.6m) | 8s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 24mm), heaviest during Mon night. Very mild (max 17°C on Tue afternoon, min 11°C on Sat night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||||||||||
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 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 | NNW 9 | NNW 8 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NNW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 45 | 61 | 77 | 78 | 78 | 65 | 48 | 46 | 35 | 27 | 19 | 17 | 15 | 15 | 15 | 7 | 7 | 6 | 5 | 5 | 5 | 5 | 5 | 6 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | glassy | cross-on | cross-on |
High Tide | 8:51AM1.56m | 9:20PM1.82m | 9:26AM1.52m | 9:54PM1.75m | 10:04AM1.45m | |||||||||||||||||||
Low Tide | 3:18AM0.30m | 3:03PM0.14m | 3:47AM0.32m | 3:32PM0.20m | 4:19AM0.37m | 4:06PM0.30m | ||||||||||||||||||
 | |  | | | |  |  | | | | | | | | | | | | |  | | | | |
 | — | 5:35 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:29 | — | — | — | — | — | — | — | 9:27 | — | — | — | — | — | — | — | 9:24 | — |
mm | — | — | — | — | — | — | 1 | 2 | 2 | 1 | — | 3 | 2 | — | — | — | 4 | 4 | 2 | 1 | 1 | 1 | — | 1 |
Temp °C | 12 | 11 | 11 | 13 | 15 | 16 | 15 | 13 | 13 | 12 | 12 | 13 | 13 | 16 | 16 | 15 | 14 | 13 | 14 | 15 | 16 | 17 | 16 | 15 |
Feels °C | 10 | 10 | 10 | 12 | 13 | 14 | 14 | 12 | 12 | 10 | 10 | 10 | 9 | 13 | 14 | 13 | 13 | 11 | 12 | 14 | 16 | 19 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | 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 | NW 7 | NNW 9 | NNE 4 | NE 4 | NE 4 | ENE 3 | ENE 3 | E 4 | E 4 | E 3 |
| kJ | 45 | 61 | 77 | 78 | 78 | 65 | 48 | 46 | 35 | 27 | 19 | 17 | 11 | 7 | 7 | 7 | 3 | 4 | 3 | 1 | 2 | 2 | 2 | 1 |
Swell 2 Height (m) Direction Period (s) | N 9 | N 9 | N 9 | N 9 | — | — | N 8 | N 8 | N 8 | NNW 8 | NNW 8 | NNW 9 | NNW 9 | NNW 9 | NNW 9 | NW 6 | ENE 4 | N 8 | N 8 | N 8 | N 8 | N 8 | N 8 | NNW 8 |
| kJ | 6 | 6 | 6 | 2 | — | — | 5 | 5 | 5 | 12 | 14 | 15 | 15 | 15 | 15 | 7 | 3 | 6 | 5 | 5 | 5 | 5 | 5 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | W 10 | W 10 | — | — | W 10 | W 9 | — | NNW 8 | NW 6 | NW 6 | NW 6 | NW 6 | NW 7 | NW 7 | NW 7 |
| kJ | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | 2 | 2 | — | 7 | 2 | 1 | 1 | 1 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ENE 2 | — | — | — | — | ENE 2 | ENE 3 | ENE 4 | ENE 4 | ENE 4 | — | — | — | — | E 3 | — | ESE 4 | — |
| kJ | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 4 | 8 | 9 | 5 | — | — | — | — | 4 | — | 3 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 8 | 0 | 0 | 0 | 2 | 16 | 8 | 8 | 16 | 40 | 40 | 40 | 41 | 97 | 40 | 40 | 40 | 40 | 40 | 44 | 40 | 40 | 83 | 56 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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