Surf Forecasts:
How big are the waves at Castlerock today (15 Jun):
- Morning surf: Morning surf (15 Jun, local time) - 0.5ft (0.2m), 8s period with WNW swell.
- Afternoon surf: Afternoon surf (15 Jun, local time) - 0.5ft (0.2m), 6s period with NNW swell.
- Evening surf: Evening surf (15 Jun, local time) - 0.5ft (0.2m), 6s period with N swell.
The current surf forecast for Castlerock at 2AM is: 0.4m 7s primary swell from a North-northwest direction and 0.2m 8s secondary swell from a West-northwest direction (forecast issued at 06:00pm June 14). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Jun) | 0.5ft (0.2m) | 8s |
| Afternoon (15 Jun) | 0.5ft (0.2m) | 6s |
| Evening (15 Jun) | 0.5ft (0.2m) | 6s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 11°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sun 14 | Monday 15 | Tuesday 16 | Wed 17 | |||||||||||||||||||||
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 | 10 AM | 1 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | NNW 8 | NNW 8 | N 8 | NNW 7 | WNW 8 | WNW 8 | WNW 8 | NNW 6 | NNW 6 | N 6 | N 6 | W 12 | W 12 | W 11 | W 11 | W 11 | W 11 | W 12 | W 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 73 | 34 | 29 | 21 | 6 | 6 | 6 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 10 | 9 | 9 | 11 | 11 | 13 | 13 | 13 | 12 | 11 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | cross-off | cross-on | glassy | off | off | off | off | cross-off |
High Tide | 6:21PM1.77m | 6:44AM1.74m | 7:08PM1.87m | 7:31AM1.69m | 7:56PM1.93m | 8:17AM1.61m | ||||||||||||||||||
Low Tide | 00:46AM0.15m | 1:03PM0.13m | 1:42AM0.11m | 1:48PM0.12m | 2:36AM0.12m | |||||||||||||||||||
 |  |  |  | | | | | | | |  | | | | | | |  |  | | | |  | |
 | — | — | — | — | 4:46 | — | — | — | — | — | — | — | 4:46 | — | — | — | — | — | — | — | 4:46 | — | — | — |
 | — | — | 10:07 | — | — | — | — | — | — | — | 10:07 | — | — | — | — | — | — | — | 10:08 | — | — | — | — | 10:08 |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 1 | — | 1 |
Temp °C | 12 | 13 | 14 | 12 | 11 | 12 | 13 | 15 | 15 | 15 | 14 | 14 | 13 | 13 | 16 | 17 | 18 | 14 | 13 | 13 | 13 | 12 | 15 | 17 |
Feels °C | 10 | 11 | 12 | 10 | 9 | 9 | 8 | 11 | 12 | 12 | 12 | 13 | 12 | 11 | 14 | 14 | 17 | 13 | 13 | 13 | 11 | 10 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | NNW 8 | NNW 8 | N 8 | NNW 7 | NNW 5 | NNW 5 | NNW 5 | N 5 | NNW 6 | N 6 | N 6 | ESE 3 | E 3 | E 3 | ESE 3 | W 11 | W 11 | W 12 | W 12 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | WNW 11 |
| kJ | 73 | 34 | 29 | 21 | 6 | 5 | 2 | 2 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | 9 | 9 | 11 | 11 | 13 | 13 | 13 | 12 | 11 |
Swell 2 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WNW 8 | WNW 8 | WNW 8 | NNW 7 | NNW 6 | NNW 6 | NW 7 | W 10 | W 7 | N 6 | W 12 | W 11 | W 11 | — | — | — | — | — | — | — | — | — |
| kJ | 16 | 16 | 14 | 7 | 6 | 4 | 3 | 4 | 2 | 2 | 1 | 1 | 3 | 3 | 10 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | NNW 7 | WNW 8 | WNW 8 | NW 7 | W 10 | W 7 | W 10 | W 12 | N 6 | N 6 | N 6 | N 6 | N 6 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | 5 | 6 | 6 | 2 | 2 | 1 | 2 | 3 | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | ESE 3 | ESE 4 | ESE 4 | ESE 4 | ESE 3 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 5 | 11 | 10 | 6 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 40 | 8 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 40 | 42 | 40 | 40 | 40 | 40 | 40 | 40 | 42 | 42 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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