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 1PM is: 0.8m 10s primary swell from a Northwest direction and 0.4m 11s secondary swell from a West-northwest direction (forecast issued at 05:00am October 29). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be offshore.
| 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 5mm), mostly falling on Sat morning. Very mild (max 13°C on Thu afternoon, min 9°C on Sat night). Winds decreasing (fresh winds from the SSE on Fri morning, calm by Sat morning). | |||||||||||||||||||||||
Thursday 29 | Friday 30 | Saturday 31 | |||||||||||||||||||||
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 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 | NW 16 | NW 15 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 369 | 290 | 217 | 160 | 106 | 102 | 156 | 111 | 110 | 73 | 71 | 69 | 66 | 60 | 85 | 255 | 293 | 352 | 342 | 380 | 380 | 374 | 418 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | glassy | cross-on | cross-on | cross-on | cross-on |
High Tide | 7:29AM1.80m | 7:51PM1.63m | 8:15AM1.72m | 8:38PM1.43m | 9:10AM1.61m | ||||||||||||||||||
Low Tide | 1:19AM0.16m | 1:49PM0.19m | 1:59AM0.26m | 2:46PM0.32m | 2:46AM0.38m | 4:00PM0.47m | |||||||||||||||||
 |  |  | | | | | |  | |  | |  | | |  | | | |  | | | | |
 | — | 7:24 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — |
 | — | — | — | — | 4:55 | — | — | — | — | — | — | — | 4:53 | — | — | — | — | — | — | — | 4:52 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 | — | 2 | — | — | — |
Temp °C | 11 | 10 | 10 | 12 | 13 | 12 | 11 | 11 | 11 | 10 | 11 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 10 | 10 |
Feels °C | 8 | 6 | 6 | 8 | 8 | 8 | 6 | 6 | 5 | 4 | 5 | 7 | 8 | 9 | 10 | 9 | 9 | 11 | 11 | 10 | 8 | 6 | 7 |
Swell 1 Height (m) Direction Period (s) | 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 12 | NW 15 | NW 14 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 | NW 13 |
| kJ | 369 | 290 | 217 | 160 | 106 | 102 | 156 | 111 | 110 | 73 | 71 | 69 | 66 | 60 | 55 | 255 | 293 | 352 | 342 | 380 | 380 | 374 | 418 |
Swell 2 Height (m) Direction Period (s) | — | — | — | WNW 10 | WNW 12 | NNW 9 | NW 9 | NW 9 | NNW 8 | NW 8 | N 12 | N 12 | N 12 | NW 16 | NW 16 | N 10 | N 10 | E 10 | E 9 | E 9 | — | — | — |
| kJ | — | — | — | 35 | 26 | 56 | 40 | 20 | 7 | 3 | 3 | 3 | 3 | 40 | 85 | 2 | 2 | 7 | 2 | 2 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | N 12 | N 12 | NW 8 | N 8 | — | N 12 | N 11 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 3 | 3 | 3 | 1 | — | 3 | 2 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 3 | SE 3 | SSE 3 | SE 4 | SE 4 | SE 4 | SE 4 | SE 4 | SSE 4 | SSE 4 | SE 4 | SE 4 | SE 4 | ESE 4 | SE 4 | — | — | — | — | — |
| kJ | — | — | — | 1 | 2 | 4 | 10 | 15 | 15 | 15 | 24 | 22 | 11 | 5 | 4 | 4 | 1 | 2 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 390 | 390 | 367 | 122 | 121 | 121 | 194 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 71 | 71 | 71 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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