Surf Forecasts:
How big are the waves at Castlerock today (29 Jun):
- Morning surf: Morning surf (29 Jun, local time) - 4.5ft (1.3m), 12s period with WNW swell.
- Afternoon surf: Afternoon surf (29 Jun, local time) - 3.5ft (1.1m), 11s period with NW swell.
- Evening surf: Evening surf (29 Jun, local time) - 3ft (0.9m), 10s period with WNW swell.
The current surf forecast for Castlerock at 3AM is: 1.3m 12s primary swell from a West-northwest direction (forecast issued at 12:00am June 29). An open ocean swell of 0.3m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Jun) | 4.5ft (1.3m) | 12s |
| Afternoon (29 Jun) | 3.5ft (1.1m) | 11s |
| Evening (29 Jun) | 3ft (0.9m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Mon night. Very mild (max 17°C on Mon morning, min 11°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 29 | Tuesday 30 | Wednesday 1 | ||||||||||||||||||||||
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 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 11 | WNW 11 | WNW 10 | WNW 10 | NW 10 | NW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 8 | NW 8 | NW 8 | WNW 8 | WNW 8 | WNW 9 | WNW 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 587 | 473 | 443 | 399 | 335 | 273 | 200 | 178 | 125 | 98 | 94 | 60 | 58 | 55 | 54 | 31 | 31 | 18 | 18 | 17 | 13 | 13 | 8 | 7 |
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 | glassy | cross-off | off | cross-off | off | cross-off | cross-off | glassy | on | on | cross-on | cross-on | cross-on | cross | cross-on | glassy | cross-off | cross-off | off |
High Tide | 6:30AM1.44m | 6:55PM1.63m | 7:03AM1.47m | 7:29PM1.68m | 7:35AM1.48m | 8:04PM1.71m | ||||||||||||||||||
Low Tide | 00:51AM0.39m | 12:52PM0.31m | 1:29AM0.36m | 1:27PM0.26m | 2:05AM0.36m | 2:00PM0.22m | ||||||||||||||||||
 |  |  | |  |  | | |  | | | | | |  | | |  | | | | | | | |
 | — | 4:48 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — | — | 4:50 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 10:09 | — | — | — | — | — | — | — | 10:09 | — | — | — | — | — | — | — | 10:09 |
mm | — | — | — | — | — | 2 | 2 | 3 | 1 | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 11 | 12 | 13 | 15 | 17 | 16 | 15 | 13 | 13 | 13 | 12 | 13 | 15 | 15 | 14 | 13 | 12 | 12 | 12 | 13 | 15 | 16 | 14 | 16 |
Feels °C | 7 | 8 | 9 | 11 | 14 | 16 | 13 | 12 | 10 | 10 | 9 | 11 | 15 | 13 | 12 | 11 | 10 | 10 | 11 | 12 | 16 | 14 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | WNW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | NW 11 | WNW 11 | WNW 10 | WNW 10 | NW 10 | NW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 8 | NW 8 | NW 8 | WNW 8 | WNW 8 | WNW 7 | WNW 7 |
| kJ | 587 | 473 | 443 | 399 | 335 | 273 | 200 | 178 | 125 | 98 | 94 | 60 | 58 | 55 | 54 | 31 | 31 | 18 | 18 | 17 | 13 | 13 | 5 | 5 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | ESE 3 | ESE 3 | E 3 | E 3 | NW 7 | NW 8 | NNW 7 | NNW 7 | NW 7 | NNW 7 | NNW 7 | NNW 7 | NNW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | 1 | 9 | 9 | 5 | 9 | 7 | 5 | 5 | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | W 12 | — | — | — | WNW 9 | WNW 9 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | — | — | — | 8 | 7 |
Wind waves Height (m) Direction Period (s) | SW 2 | SW 3 | SW 3 | — | — | — | — | — | — | — | ESE 3 | — | — | — | — | — | — | — | — | — | — | — | S 2 | SSW 3 |
| kJ | 1 | 1 | 1 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 414 | 9 | 9 | 9 | 9 | 9 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 2 | 8 | 63 | 63 | 144 | 144 | 157 | 42 | 42 | 42 | 42 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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