Surf Forecasts:
How big are the waves at Castlerock today (29 Oct):
- Morning surf: Morning surf (29 Oct, local time) - 3.5ft (1.1m), 10s period with NW swell.
- Afternoon surf: Afternoon surf (29 Oct, local time) - 2.5ft (0.8m), 9s period with NW swell.
- Evening surf: Evening surf (29 Oct, local time) - 2ft (0.6m), 14s period with WNW swell.
The current surf forecast for Castlerock at 12AM is: 1.3m 10s primary swell from a Northwest direction and 0.3m 14s secondary swell from a North-northwest direction (forecast issued at 05:00pm October 28). The wind direction is predicted to be offshore and the swell rating is 2.
| Time (GMT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Oct) | 3.5ft (1.1m) | 10s |
| Afternoon (29 Oct) | 2.5ft (0.8m) | 9s |
| Evening (29 Oct) | 2ft (0.6m) | 14s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Sat morning. Very mild (max 14°C on Fri afternoon, min 10°C on Wed night). Winds decreasing (fresh winds from the SSE on Thu night, light winds from the WSW by Fri night). | |||||||||||||||||||
Wed 28 | Thursday 29 | Friday 30 | |||||||||||||||||
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 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | WNW 13 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 807 | 617 | 496 | 391 | 369 | 290 | 217 | 160 | 106 | 101 | 154 | 111 | 110 | 74 | 71 | 69 | 66 | 89 | 90 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 7:08PM1.79m | 7:29AM1.80m | 7:51PM1.63m | 8:15AM1.72m | 8:38PM1.43m | ||||||||||||||
Low Tide | 1:02PM0.09m | 1:19AM0.16m | 1:49PM0.19m | 1:59AM0.26m | 2:46PM0.32m | ||||||||||||||
 |  |  | | | |  | | | | | |  | | | | | | | |
 | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — |
 | 4:59 | — | — | — | — | — | — | — | 4:55 | — | — | — | — | — | — | — | 4:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 11 | 11 | 11 | 10 | 10 | 12 | 13 | 12 | 11 | 11 | 10 | 10 | 10 | 13 | 14 | 13 | 13 |
Feels °C | 9 | 9 | 8 | 8 | 8 | 6 | 6 | 8 | 8 | 7 | 6 | 6 | 5 | 4 | 4 | 7 | 9 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 9 | WNW 13 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 13 |
| kJ | 807 | 617 | 496 | 391 | 369 | 290 | 217 | 160 | 106 | 101 | 154 | 111 | 110 | 74 | 71 | 69 | 66 | 89 | 90 |
Swell 2 Height (m) Direction Period (s) | — | — | — | NNW 14 | — | — | — | WNW 10 | WNW 12 | NNW 9 | NW 9 | NW 9 | NNW 8 | NNW 8 | NW 8 | N 12 | N 12 | N 11 | NW 16 |
| kJ | — | — | — | 36 | — | — | — | 19 | 26 | 55 | 40 | 20 | 7 | 7 | 3 | 3 | 3 | 2 | 40 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | N 12 | N 12 | N 12 | N 8 | — | — | ESE 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 1 | — | — | 2 |
Wind waves Height (m) Direction Period (s) | SW 3 | — | — | — | — | — | — | SSE 2 | SE 3 | SSE 3 | SE 4 | SE 4 | SE 4 | SSE 4 | SSE 4 | SSE 4 | SE 4 | SE 4 | — |
| kJ | 2 | — | — | — | — | — | — | 1 | 2 | 3 | 10 | 14 | 11 | 18 | 21 | 20 | 16 | 5 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 390 | 390 | 367 | 311 | 311 | 311 | 0 | 0 | 0 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||
Header Global | |||||||||||||||||||
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