Surf Forecasts:
How big are the waves at Castlerock today (07 Oct):
- Morning surf: Morning surf (07 Oct, local time) - 4ft (1.2m), 10s period with NW swell.
- Afternoon surf: Afternoon surf (07 Oct, local time) - 5ft (1.6m), 10s period with NW swell.
- Evening surf: Evening surf (07 Oct, local time) - 7ft (2.1m), 11s period with NW swell.
The current surf forecast for Castlerock at 8AM is: 1.2m 10s primary swell from a Northwest direction (forecast issued at 12:00am October 07). The wind direction is predicted to be cross-shore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (07 Oct) | 4ft (1.2m) | 10s |
| Afternoon (07 Oct) | 5ft (1.6m) | 10s |
| Evening (07 Oct) | 7ft (2.1m) | 11s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Thu afternoon. Very mild (max 15°C on Thu night, min 9°C on Tue night). Winds increasing (light winds from the SW on Thu morning, strong winds from the W by Fri afternoon). | ||||||||||||||||||||||||
Wednesday 7 | Thursday 8 | Friday 9 | ||||||||||||||||||||||
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 | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | NW 10 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 12 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 279 | 302 | 319 | 308 | 451 | 623 | 930 | 999 | 952 | 836 | 629 | 466 | 371 | 254 | 187 | 137 | 192 | 226 | 327 | 544 | 641 | 922 | 1527 | 2224 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross | cross-off | cross |
High Tide | 4:39AM1.34m | 4:59PM1.80m | 5:18AM1.47m | 5:37PM1.91m | 5:53AM1.59m | 6:11PM1.96m | ||||||||||||||||||
Low Tide | 10:59PM0.33m | 10:42AM0.31m | 11:39PM0.21m | 11:25AM0.18m | 00:13AM0.13m | 12:02PM0.08m | ||||||||||||||||||
 |  | |  | |  | | | | |  |  |  |  |  | | | | | | | | |  | |
 | — | — | 7:39 | — | — | — | — | — | — | — | 7:41 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — |
 | — | — | — | — | — | 6:49 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | 2 | 5 | 1 | 3 | 2 | — | — | — | — | — | 1 |
Temp °C | 10 | 9 | 9 | 10 | 11 | 12 | 11 | 11 | 11 | 10 | 10 | 10 | 11 | 9 | 10 | 13 | 15 | 15 | 12 | 12 | 12 | 12 | 11 | 11 |
Feels °C | 6 | 5 | 5 | 4 | 4 | 5 | 3 | 4 | 5 | 5 | 6 | 7 | 6 | 4 | 4 | 9 | 11 | 9 | 5 | 3 | 3 | 2 | 1 | 0 |
Swell 1 Height (m) Direction Period (s) | NW 10 | NW 10 | NW 11 | NW 10 | — | — | — | — | — | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 10 | WNW 10 | WNW 10 | — | — | — | — | — | — |
| kJ | 279 | 302 | 319 | 308 | — | — | — | — | — | 836 | 629 | 466 | 371 | 254 | 187 | 137 | 192 | 226 | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 3 | SE 4 | NW 16 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 1 | 10 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 10 | NW 10 | NW 11 | NW 11 | NW 11 | — | — | — | — | — | SSE 3 | SW 3 | W 3 | — | WNW 10 | WNW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 12 |
| kJ | — | — | — | — | 451 | 623 | 930 | 999 | 952 | — | — | — | — | — | 3 | 2 | 5 | — | 327 | 544 | 641 | 922 | 1527 | 2224 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 27 | 9 | 398 | 398 | 442 | 442 | 443 | 847 | 187 | 185 | 27 | 0 | 0 | 0 | 305 | 339 | 405 | 323 | 366 | 968 | 1035 | 1092 | 1092 | 772 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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