Surf Forecasts:
How big are the waves at Castlerock today (03 Oct):
- Morning surf: Morning surf (03 Oct, local time) - 3.5ft (1.0m), 10s period with NW swell.
- Afternoon surf: Afternoon surf (03 Oct, local time) - 3ft (0.9m), 10s period with WNW swell.
- Evening surf: Evening surf (03 Oct, local time) - 3ft (0.9m), 10s period with NW swell.
The current surf forecast for Castlerock at 3PM is: 0.9m 10s primary swell from a West-northwest direction (forecast issued at 06:00am October 03). An open ocean swell of 0.3m 2s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 Oct) | 3.5ft (1.0m) | 10s |
| Afternoon (03 Oct) | 3ft (0.9m) | 10s |
| Evening (03 Oct) | 3ft (0.9m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 8mm), mostly falling on Mon afternoon. Very mild (max 17°C on Sun afternoon, min 10°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||
Saturday 3 | Sunday 4 | Monday 5 | |||||||||||||||||||||
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 11 | NW 11 | NW 10 | NW 10 | WNW 10 | NW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | NW 11 | NW 11 | NW 11 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 297 | 249 | 200 | 163 | 168 | 134 | 154 | 178 | 196 | 196 | 224 | 263 | 303 | 473 | 591 | 563 | 511 | 497 | 455 | 431 | 476 | 524 | 946 |
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 | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on |
High Tide | 11:17AM1.37m | 00:01AM1.12m | 1:15PM1.32m | 2:24AM1.08m | 3:10PM1.45m | ||||||||||||||||||
Low Tide | 4:48AM0.55m | 6:16PM0.62m | 6:29AM0.65m | 8:33PM0.62m | 8:29AM0.60m | ||||||||||||||||||
 | |  |  |  |  | | | | | | | | | | | | | | |  |  | | |
 | — | 7:31 | — | — | — | — | — | — | — | 7:33 | — | — | — | — | — | — | — | 7:35 | — | — | — | — | — |
 | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 2 |
Temp °C | 10 | 10 | 11 | 13 | 14 | 14 | 13 | 12 | 11 | 11 | 13 | 16 | 17 | 17 | 17 | 16 | 16 | 15 | 16 | 16 | 16 | 12 | 11 |
Feels °C | 6 | 7 | 8 | 9 | 10 | 11 | 10 | 8 | 6 | 6 | 9 | 12 | 13 | 14 | 14 | 13 | 13 | 10 | 11 | 12 | 14 | 9 | 9 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 10 | NW 10 | WNW 10 | NW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | NW 11 | NW 11 | NW 11 | NW 13 | NW 13 | NW 13 | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NW 11 | NW 13 |
| kJ | 297 | 249 | 200 | 163 | 168 | 134 | 154 | 178 | 196 | 196 | 224 | 263 | 303 | 473 | 591 | 563 | 511 | 497 | 455 | 431 | 476 | 524 | 946 |
Swell 2 Height (m) Direction Period (s) | WNW 6 | NW 6 | — | — | — | — | — | — | — | — | — | — | — | NW 13 | — | — | — | — | — | — | — | — | — |
| kJ | 54 | 43 | — | — | — | — | — | — | — | — | — | — | — | 250 | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | WSW 2 | WSW 2 | — | SW 2 | — | — | — | — | S 2 | S 3 | S 3 | SSW 3 | SSW 3 | SSW 3 | SSW 3 | SSW 2 | SW 3 | WSW 3 | WSW 3 | WSW 3 | — | — | — |
| kJ | 1 | 1 | — | 1 | — | — | — | — | 1 | 3 | 5 | 5 | 3 | 2 | 3 | 1 | 2 | 3 | 3 | 3 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 9 | 0 | 0 | 9 | 9 | 0 | 0 | 0 | 0 | 0 | 0 | 9 | 162 | 9 | 9 | 387 | 9 | 387 | 187 | 27 | 9 | 387 | 9 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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