Surf Forecasts:
How big are the waves at Castlerock today (08 Aug):
- Morning surf: Morning surf (08 Aug, local time) - 3ft (0.9m), 10s period with WNW swell.
- Afternoon surf: Afternoon surf (08 Aug, local time) - 3ft (0.9m), 10s period with WNW swell.
- Evening surf: Evening surf (08 Aug, local time) - 3ft (0.9m), 10s 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 August 08). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Aug) | 3ft (0.9m) | 10s |
| Afternoon (08 Aug) | 3ft (0.9m) | 10s |
| Evening (08 Aug) | 3ft (0.9m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Very mild (max 17°C on Sat afternoon, min 12°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 8 | Sunday 9 | Monday 10 | ||||||||||||||||||||||
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 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 8 | NW 8 | N 11 | N 10 | NNW 10 | NNW 9 | NW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 286 | 220 | 200 | 164 | 161 | 161 | 171 | 175 | 148 | 136 | 108 | 108 | 125 | 123 | 118 | 115 | 88 | 84 | 66 | 61 | 54 | 75 | 68 | 77 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-on | on | cross-on | cross |
High Tide | 2:09AM1.28m | 3:06PM1.28m | 3:46AM1.32m | 4:25PM1.45m | 4:54AM1.42m | 5:23PM1.67m | ||||||||||||||||||
Low Tide | 8:43AM0.59m | 9:35PM0.57m | 10:14AM0.50m | 11:03PM0.42m | 11:16AM0.35m | |||||||||||||||||||
 | |  | | | |  |  | | | | |  |  | | | | | | | | | | | |
 | — | 5:46 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 9:16 | — | — | — | — | — | — | — | 9:15 | — | — | — | — | — | — | — | 9:13 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | 1 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 15 | 15 | 17 | 17 | 16 | 15 | 14 | 14 | 13 | 13 | 16 | 15 | 14 | 13 | 12 | 12 | 14 | 15 | 15 | 15 | 14 |
Feels °C | 10 | 10 | 10 | 11 | 11 | 13 | 16 | 14 | 13 | 10 | 12 | 11 | 10 | 12 | 11 | 11 | 11 | 10 | 10 | 13 | 14 | 13 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 8 | NW 8 | WNW 8 | N 10 | NNW 10 | NNW 9 | NW 9 |
| kJ | 286 | 220 | 200 | 164 | 161 | 161 | 171 | 175 | 148 | 136 | 108 | 108 | 125 | 123 | 118 | 115 | 88 | 84 | 66 | 44 | 54 | 75 | 68 | 77 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 5 | — | — | N 9 | — | — | — | — | — | — | NNW 12 | N 11 | NW 8 | WNW 8 | NW 8 | NNW 9 |
| kJ | — | — | — | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | 26 | 61 | 31 | 24 | 16 | 34 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 7 | NNW 7 | — | NW 9 | NW 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 9 | 18 | — | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 2 | S 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 9 | 0 | 9 | 0 | 9 | 0 | 9 | 187 | 187 | 409 | 27 | 9 | 0 | 0 | 9 | 27 | 110 | 40 | 2 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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