Surf Forecasts:
How big are the waves at Castlerock today (28 Oct):
- Morning surf: Morning surf (28 Oct, local time) - 7ft (2.2m), 12s period with NW swell.
- Afternoon surf: Afternoon surf (28 Oct, local time) - 6ft (1.8m), 11s period with NW swell.
- Evening surf: Evening surf (28 Oct, local time) - 5ft (1.5m), 11s period with NW swell.
The current surf forecast for Castlerock at 12PM is: 2.1m 11s primary swell from a Northwest direction (forecast issued at 05:00am October 28). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Oct) | 7ft (2.2m) | 12s |
| Afternoon (28 Oct) | 6ft (1.8m) | 11s |
| Evening (28 Oct) | 5ft (1.5m) | 11s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Fri night. Very mild (max 14°C on Fri afternoon, min 9°C on Thu morning). Winds decreasing (fresh winds from the SSE on Thu night, light winds from the S by Fri night). | |||||||||||||||||||||||
Wednesday 28 | Thursday 29 | Friday 30 | |||||||||||||||||||||
3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 12 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | NW 16 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1591 | 1513 | 1269 | 1035 | 802 | 729 | 496 | 391 | 369 | 290 | 217 | 160 | 71 | 105 | 152 | 110 | 110 | 110 | 73 | 69 | 67 | 85 | 119 |
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 | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 6:48AM1.84m | 7:08PM1.79m | 7:29AM1.80m | 7:51PM1.63m | 8:15AM1.72m | 8:38PM1.43m | |||||||||||||||||
Low Tide | 00:44AM0.08m | 1:02PM0.09m | 1:19AM0.16m | 1:49PM0.19m | 1:59AM0.26m | 2:46PM0.32m | |||||||||||||||||
 |  |  |  |  |  | |  | | | | | | | | |  | | | | | | | |
 | — | 7:20 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — |
 | — | — | — | — | 4:59 | — | — | — | — | — | — | — | 4:55 | — | — | — | — | — | — | — | 4:53 | — | — |
mm | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 12 | 12 | 12 | 13 | 13 | 12 | 11 | 11 | 11 | 10 | 9 | 12 | 13 | 12 | 11 | 11 | 10 | 10 | 11 | 13 | 14 | 14 | 13 |
Feels °C | 6 | 6 | 8 | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 4 | 8 | 8 | 7 | 6 | 5 | 4 | 3 | 5 | 8 | 11 | 11 | 11 |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 |
| kJ | 1591 | 1513 | 1269 | 1035 | 802 | 729 | 496 | 391 | 369 | 290 | 217 | 160 | 71 | 105 | 152 | 110 | 110 | 110 | 73 | 69 | 67 | 85 | 78 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | NNW 14 | — | — | — | WNW 10 | WNW 11 | NNW 9 | NW 9 | NW 9 | NNW 8 | NW 8 | N 12 | N 12 | N 12 | SE 4 | NW 16 |
| kJ | — | — | — | — | — | — | — | 36 | — | — | — | 35 | 49 | 56 | 40 | 20 | 7 | 3 | 3 | 3 | 3 | 4 | 119 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | N 11 | N 12 | NW 8 | N 8 | — | NW 16 | ESE 4 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 1 | — | 40 | 4 |
Wind waves Height (m) Direction Period (s) | SW 3 | — | SW 3 | SW 3 | SW 3 | — | — | — | — | — | SSE 2 | SSE 2 | SE 3 | SE 3 | SE 4 | SE 4 | SSE 4 | SSE 4 | SE 4 | SSE 4 | SE 4 | SE 5 | — |
| kJ | 9 | — | 2 | 2 | 2 | — | — | — | — | — | 1 | 1 | 2 | 5 | 14 | 23 | 21 | 31 | 18 | 11 | 5 | 6 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 559 | 433 | 9 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 25 | 0 | 390 | 390 | 311 | 311 | 121 | 83 | 0 | 0 | 0 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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