Surf Forecasts:
How big are the waves at Castlerock today (08 Oct):
- Morning surf: Morning surf (08 Oct, local time) - 5ft (1.5m), 11s period with NW swell.
- Afternoon surf: Afternoon surf (08 Oct, local time) - 3.5ft (1.1m), 11s period with NW swell.
- Evening surf: Evening surf (08 Oct, local time) - 3ft (0.9m), 10s period with NW swell.
The current surf forecast for Castlerock at 12PM is: 1.3m 11s primary swell from a Northwest direction (forecast issued at 06:00am October 08). The wind direction is predicted to be cross-offshore.
| Time (BST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (08 Oct) | 5ft (1.5m) | 11s |
| Afternoon (08 Oct) | 3.5ft (1.1m) | 11s |
| Evening (08 Oct) | 3ft (0.9m) | 10s |
Table - waves today at Castlerock. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 25mm), heaviest during Thu afternoon. Very mild (max 15°C on Thu night, min 8°C on Thu afternoon). Winds increasing (light winds from the SSW on Thu morning, strong winds from the WNW by Fri night). | |||||||||||||||||||||||
Thursday 8 | Friday 9 | Saturday 10 | |||||||||||||||||||||
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 11 | NW 11 | NW 11 | NW 11 | WNW 10 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 10 | NW 10 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 836 | 579 | 422 | 371 | 254 | 159 | 161 | 151 | 188 | 351 | 490 | 500 | 629 | 660 | 846 | 1539 | 2472 | 3043 | 3241 | 3104 | 2877 | 2386 | 2027 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | off | off | off | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross-on | cross-on | cross-on |
High Tide | 5:18AM1.47m | 5:37PM1.91m | 5:53AM1.59m | 6:11PM1.96m | 6:26AM1.68m | 6:43PM1.95m | |||||||||||||||||
Low Tide | 11:25AM0.18m | 00:13AM0.13m | 12:02PM0.08m | 00:42AM0.08m | 12:36PM0.04m | ||||||||||||||||||
 |  |  |  | |  | | | | | |  | | |  | | | | | | | | | |
 | — | 7:41 | — | — | — | — | — | — | — | 7:43 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | 1 | 5 | 4 | 1 | 3 | 2 | 3 | — | 1 | 1 | — | 1 | — | — | 1 | — | 1 | 1 | — | — |
Temp °C | 10 | 10 | 10 | 10 | 8 | 11 | 14 | 15 | 15 | 14 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 10 | 11 | 11 | 11 | 11 | 10 |
Feels °C | 5 | 6 | 7 | 5 | 2 | 5 | 10 | 11 | 11 | 8 | 4 | 3 | 3 | 2 | 2 | 0 | 1 | -1 | 2 | 2 | 2 | 3 | 3 |
Swell 1 Height (m) Direction Period (s) | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | NW 11 | WNW 10 | WNW 9 | WNW 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 12 |
| kJ | 836 | 579 | 422 | 371 | 254 | 159 | 161 | 151 | 188 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2027 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | SE 4 | SE 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSE 2 | SSE 3 | W 3 | W 4 | W 4 | WNW 10 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NW 10 | NW 10 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 | — |
| kJ | — | — | — | — | 1 | 4 | 2 | 13 | 21 | 351 | 490 | 500 | 629 | 660 | 846 | 1539 | 2472 | 3043 | 3241 | 3104 | 2877 | 2386 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 187 | 27 | 0 | 0 | 292 | 323 | 9 | 378 | 330 | 400 | 365 | 968 | 1035 | 1268 | 1092 | 380 | 839 | 772 | 587 | 771 | 772 | 387 | 387 |
Best forecast wave conditions in Londonderry | |||||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||||
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