Surf Forecasts:
How big are the waves at Castlerock today (09 Jun):
- Morning surf: Morning surf (09 Jun, local time) - 2.5ft (0.8m), 11s period with WNW swell.
- Afternoon surf: Afternoon surf (09 Jun, local time) - 2.5ft (0.7m), 11s period with WNW swell.
- Evening surf: Evening surf (09 Jun, local time) - 3ft (0.9m), 10s period with WNW swell.
The current surf forecast for Castlerock at 7PM is: 0.9m 11s primary swell from a West-northwest direction (forecast issued at 12:00pm June 09). The wind direction is predicted to be cross-onshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Jun) | 2.5ft (0.8m) | 11s |
| Afternoon (09 Jun) | 2.5ft (0.7m) | 11s |
| Evening (09 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 ForecastHeavy rain (total 20mm), heaviest during Wed night. Very mild (max 14°C on Thu afternoon, min 8°C on Wed night). Winds decreasing (fresh winds from the WNW on Tue morning, light winds from the SW by Thu night). | ||||||||||||||||||||||||
Tue 9 | Wednesday 10 | Thursday 11 | Fri 12 | |||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 10 | WNW 10 | WNW 10 | NW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 105 | 173 | 107 | 204 | 173 | 130 | 111 | 98 | 81 | 110 | 148 | 145 | 162 | 159 | 162 | 138 | 97 | 81 | 75 | 88 | 86 | 69 | 58 | 62 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | off | cross-off | off | off | cross-off | cross-off | cross | cross-off | cross-off | cross-off |
High Tide | 1:30PM1.15m | 2:07AM1.49m | 2:48PM1.22m | 3:11AM1.56m | 3:51PM1.35m | 4:10AM1.64m | ||||||||||||||||||
Low Tide | 7:52AM0.56m | 7:29PM0.53m | 8:53AM0.47m | 8:38PM0.50m | 9:49AM0.38m | 9:46PM0.43m | ||||||||||||||||||
 | |  |  |  |  |  | | | | |  | | | |  | | | | | |  | | | |
 | 4:48 | — | — | — | — | — | 4:48 | — | — | — | — | — | — | — | 4:47 | — | — | — | — | — | — | — | 4:47 | — |
 | — | — | — | — | 10:04 | — | — | — | — | — | — | — | 10:05 | — | — | — | — | — | — | — | 10:05 | — | — | 10:06 |
mm | 1 | 2 | 1 | 1 | — | 1 | — | — | 1 | 1 | 1 | — | — | — | — | 6 | 3 | 1 | — | 1 | — | — | — | — |
Temp °C | 11 | 12 | 12 | 12 | 10 | 9 | 9 | 9 | 9 | 12 | 12 | 12 | 11 | 9 | 8 | 9 | 10 | 11 | 13 | 14 | 13 | 12 | 12 | 12 |
Feels °C | 6 | 5 | 6 | 7 | 6 | 5 | 5 | 5 | 5 | 7 | 7 | 7 | 7 | 6 | 4 | 4 | 5 | 8 | 11 | 12 | 9 | 8 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 11 | WNW 11 | — | WNW 10 | WNW 10 | WNW 10 | NW 10 | WNW 10 | — | — | — | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | NW 9 | WNW 8 | WNW 8 | NW 8 | WNW 8 | WNW 8 |
| kJ | 105 | 173 | 107 | — | 173 | 130 | 111 | 98 | 81 | — | — | — | 162 | 159 | 162 | 138 | 97 | 81 | 75 | 88 | 86 | 69 | 58 | 62 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 3 | ESE 5 | ESE 4 | — | — | — | NW 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 | — | — | — | 19 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 2 | — | NW 4 | WNW 11 | — | — | — | — | WSW 2 | WNW 9 | WNW 9 | WNW 9 | — | — | — | — | SE 2 | — | W 2 | — | — | — | — | — |
| kJ | 1 | — | 23 | 204 | — | — | — | — | 1 | 110 | 148 | 145 | — | — | — | — | 2 | — | 1 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 9 | 80 | 1306 | 398 | 364 | 9 | 9 | 0 | 1037 | 772 | 442 | 429 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 25 | 162 | 162 | 155 | 0 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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