Surf Forecasts:
How big are the waves at Castlerock today (05 Oct):
- Morning surf: Morning surf (05 Oct, local time) - 5ft (1.6m), 12s period with NW swell.
- Afternoon surf: Afternoon surf (05 Oct, local time) - 5ft (1.6m), 11s period with NW swell.
- Evening surf: Evening surf (05 Oct, local time) - 6.5ft (2.0m), 12s period with NW swell.
The current surf forecast for Castlerock at 6AM is: 1.5m 12s primary swell from a Northwest direction (forecast issued at 12:00am October 05). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Oct) | 5ft (1.6m) | 12s |
| Afternoon (05 Oct) | 5ft (1.6m) | 11s |
| Evening (05 Oct) | 6.5ft (2.0m) | 12s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Mon morning. Very mild (max 16°C on Sun night, min 9°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the NW by Wed afternoon). | ||||||||||||||||||||||||
Monday 5 | Tuesday 6 | Wednesday 7 | ||||||||||||||||||||||
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 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 12 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 11 | NW 10 | NW 10 | NW 10 | NW 11 | NW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 814 | 699 | 625 | 660 | 593 | 629 | 1065 | 1226 | 1226 | 869 | 663 | 505 | 441 | 330 | 318 | 279 | 284 | 308 | 319 | 308 | 328 | 541 | 802 | 999 |
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 | cross-on | cross | cross-on | glassy | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross | cross | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on |
High Tide | 2:24AM1.08m | 3:10PM1.45m | 3:50AM1.20m | 4:13PM1.64m | 4:39AM1.34m | 4:59PM1.80m | ||||||||||||||||||
Low Tide | 8:29AM0.60m | 10:05PM0.48m | 9:49AM0.46m | 10:59PM0.33m | 10:42AM0.31m | |||||||||||||||||||
 | | |  |  | |  | |  | | |  | |  | | |  | | | | | | | | |
 | — | — | 7:35 | — | — | — | — | — | — | — | 7:37 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — |
 | — | — | — | — | — | 6:53 | — | — | — | — | — | — | — | 6:51 | — | — | — | — | — | — | — | 6:49 | — | — |
mm | — | — | — | — | 1 | 1 | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 15 | 15 | 15 | 12 | 12 | 12 | 10 | 11 | 11 | 11 | 12 | 12 | 11 | 10 | 9 | 9 | 9 | 10 | 11 | 11 | 11 | 11 |
Feels °C | 12 | 10 | 10 | 12 | 12 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 6 | 6 | 5 | 4 | 3 | 3 | 4 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 12 | NW 13 | NW 13 | NW 12 | NW 11 | NW 11 | NW 11 | NW 10 | NW 10 | NW 10 | NW 10 | NW 10 | NW 11 | NW 10 | — | — | — | — |
| kJ | 814 | 699 | 625 | 660 | 593 | 629 | 1065 | 1226 | 1226 | 869 | 663 | 505 | 441 | 330 | 318 | 279 | 284 | 308 | 319 | 308 | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | WSW 3 | SSW 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 10 | NW 10 | NW 11 | NW 11 |
| kJ | 1 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 328 | 541 | 802 | 999 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 387 | 387 | 387 | 9 | 187 | 378 | 9 | 9 | 0 | 0 | 0 | 0 | 9 | 71 | 9 | 9 | 9 | 0 | 0 | 400 | 414 | 408 | 847 | 422 |
Best forecast wave conditions in Londonderry | ||||||||||||||||||||||||
Best forecast wave conditions in Ireland | ||||||||||||||||||||||||
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