Surf Forecasts:
How big are the waves at Castlerock today (24 Oct):
- Morning surf: Morning surf (24 Oct, local time) - 5ft (1.5m), 13s period with NW swell.
- Afternoon surf: Afternoon surf (24 Oct, local time) - 6ft (1.8m), 12s period with W swell.
- Evening surf: Evening surf (24 Oct, local time) - 13ft (4.0m), 15s period with WNW swell.
The current surf forecast for Castlerock at 10AM is: 1.5m 13s primary swell from a Northwest direction (forecast issued at 06:00am October 24). An open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Oct) | 5ft (1.5m) | 13s |
| Afternoon (24 Oct) | 6ft (1.8m) | 12s |
| Evening (24 Oct) | 13ft (4.0m) | 15s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 32mm), heaviest during Sat morning. Very mild (max 16°C on Mon afternoon, min 8°C on Sat afternoon). Winds decreasing (severe gales from the W on Sat night, light winds from the S by Sun night). | |||||||||||||||||||||||
Saturday 24 | Sunday 25 | Monday 26 | |||||||||||||||||||||
4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 3 AM | 6 AM | 9 AM | 12 PM | 3 PM | 6 PM | 9 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 14 | NW 13 | NW 13 | NW 13 | W 12 | WNW 12 | WNW 15 | NW 16 | NW 16 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NNW 10 | NNW 10 | NW 10 | WNW 10 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1052 | 919 | 744 | 459 | 879 | 1277 | 7074 | 17994 | 15476 | 11750 | 10966 | 8523 | 7024 | 5027 | 3398 | 2281 | 1546 | 966 | 347 | 241 | 143 | 110 | 94 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | off | cross-off | cross-off | off | off | off | off |
High Tide | 5:26AM1.54m | 5:40PM1.85m | 5:59AM1.67m | 6:14PM1.93m | 6:34AM1.76m | 6:50PM1.95m | |||||||||||||||||
Low Tide | 11:33AM0.21m | 00:10AM0.12m | 12:07PM0.13m | 00:40AM0.06m | 12:43PM0.07m | ||||||||||||||||||
 | |  |  |  | | |  | | | | |  |  | | | | | | | | | | |
 | — | 8:12 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 8:17 | — | — | — | — | — |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 6:02 | — | — |
mm | — | — | 2 | 7 | 7 | — | — | 1 | 1 | 1 | 1 | 1 | — | — | — | — | — | — | 3 | 3 | 1 | 1 | 2 |
Temp °C | 8 | 8 | 9 | 12 | 10 | 8 | 10 | 10 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 9 | 8 | 8 | 10 | 13 | 15 | 16 | 15 |
Feels °C | 3 | 2 | -1 | 4 | -2 | -5 | -4 | -5 | -5 | -5 | -4 | -4 | -2 | 0 | 2 | 4 | 3 | 2 | 2 | 8 | 12 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 14 | NW 13 | NW 13 | NW 13 | ESE 6 | WNW 12 | — | — | — | — | — | — | — | — | NW 12 | NW 12 | NW 12 | NW 11 | NW 11 | NNW 10 | NNW 10 | NW 10 | WNW 10 |
| kJ | 1052 | 919 | 744 | 459 | 20 | 1277 | — | — | — | — | — | — | — | — | 3398 | 2281 | 1546 | 966 | 347 | 241 | 143 | 110 | 94 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | ESE 6 | — | — | — | — | — | — | — | — | — | — | — | — | NNW 11 | WNW 11 | WNW 10 | NNW 10 | NNW 9 |
| kJ | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | 319 | 200 | 135 | 74 | 47 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 13 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 17 |
Wind waves Height (m) Direction Period (s) | — | — | SE 4 | SSE 5 | W 12 | WSW 4 | WNW 15 | NW 16 | NW 16 | NW 14 | NW 14 | NW 14 | NW 13 | NW 13 | — | — | — | — | SE 3 | SE 4 | ESE 6 | SE 3 | SE 4 |
| kJ | — | — | 15 | 63 | 879 | 67 | 7074 | 17994 | 15476 | 11750 | 10966 | 8523 | 7024 | 5027 | — | — | — | — | 6 | 36 | 56 | 11 | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 0 | 9 | 270 | 965 | 1081 | 404 | 1081 | 1081 | 470 | 1081 | 1081 | 1081 | 772 | 380 | 387 | 18 | 0 | 2 | 194 | 9 | 0 | 282 | 390 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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