Surf Forecasts:
Ballycastle surf forecast from 4 Aug 2026:
- Best quality surf: Monday 10 Aug, 10PM (local time) - 2.5ft (0.8m), 8s period, NW swell with glassy winds.
- Most powerful swell: Wednesday 5 Aug, 1PM (local time) - 8ft (2.5m), 9s period, WNW swell with 980 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 10PM (local time) - 2.5ft (0.8m), 8s period with NW swell.
Best Forecast Surf Conditions for Ballycastle this week:
The surf forecast for Ballycastle over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 10PM. The primary swell is predicted to be 0.8m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Ballycastle in the next 16 days are 2.5m 9s and forecast to arrive on Wednesday (Aug 05) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Aug 04) at 7AM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Mon 10th Aug) | 2.5ft (0.8m) 8s |
| Best Surf | 10PM (Mon 10th Aug) | 2.5ft (0.8m) 8s |
| Most Powerful | 1PM (Wed 5th Aug) | 8ft (2.5m) 9s |
Table - best surf conditions forecast for Ballycastle over the next 16 days.
Short Range ForecastHeavy rain (total 31mm), heaviest during Mon night. Very mild (max 19°C on Tue afternoon, min 13°C on Tue night). Winds increasing (light winds from the SW on Tue afternoon, near gales from the W by Wed afternoon). | Days 4-6 Weather SummarySome drizzle, heaviest during Sun morning. Very mild (max 18°C on Fri afternoon, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | Sunday 9 | Monday 10 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 6 | NW 7 | NW 10 | WNW 7 | WNW 9 | NW 8 | NW 7 | NW 6 | WNW 6 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | NW 9 | WNW 9 | NW 8 | NW 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 6 | 9 | 23 | 428 | 955 | 492 | 131 | 54 | 21 | 72 | 377 | 386 | 437 | 274 | 398 | 532 | 430 | 321 | 252 | 129 | 46 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross | cross-on | cross-on | on | on | on | cross | cross | cross-on | cross | cross-off | cross | cross | cross-on | on | on | on | on | glassy |
High Tide | 6:59AM0.45m | 9:25PM0.56m | 7:29AM0.44m | 9:21PM0.52m | 8:01AM0.43m | 9:29PM0.47m | 8:35AM0.40m | 9:45PM0.41m | 4:58AM0.37m | 5:36PM0.37m | 9:53PM0.35m | 5:32AM0.39m | 5:49PM0.47m | 6:03AM0.38m | 6:20PM0.57m | ||||||
Low Tide | 2:20PM0.02m | 3:15AM0.28m | 2:48PM0.09m | 3:50AM0.30m | 3:04PM0.17m | 4:26AM0.34m | 2:01PM0.24m | 1:38AM0.33m | 7:16AM0.36m | 1:32PM0.27m | 8:18PM0.35m | 9:15AM0.31m | 1:22PM0.30m | 2:10AM0.24m | 9:58AM0.24m | 2:47AM0.23m | |||||
 |  |  |  | |  | |  |  |  | | | | | | | | |  | | | |
 | 5:37 | — | — | 5:37 | — | — | 5:39 | — | — | 5:41 | — | — | 5:43 | — | — | 5:46 | — | — | 5:48 | — | — |
 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:13 | — | — | 9:10 |
mm | 3 | 2 | 1 | 2 | 5 | 3 | 1 | — | — | — | — | — | — | — | — | 1 | — | 2 | — | — | — |
Temp °C | 18 | 19 | 15 | 13 | 13 | 13 | 14 | 15 | 14 | 17 | 18 | 15 | 17 | 18 | 15 | 15 | 14 | 12 | 14 | 14 | 13 |
Feels °C | 18 | 20 | 13 | 5 | 4 | 6 | 9 | 11 | 12 | 12 | 14 | 11 | 14 | 15 | 12 | 13 | 13 | 11 | 12 | 12 | 12 |
Swell 1 Height (m) Direction Period (s) | NW 6 | ESE 5 | NW 10 | NW 11 | — | — | — | NW 6 | WNW 6 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | NW 9 | — | — | NW 8 |
| kJ | 6 | 8 | 23 | 30 | — | — | — | 54 | 21 | 72 | 377 | 386 | 437 | 274 | 398 | 532 | 430 | 321 | — | — | 46 |
Swell 2 Height (m) Direction Period (s) | — | NW 7 | SE 4 | SE 6 | — | — | — | W 10 | W 10 | — | — | — | S 5 | SSE 6 | — | — | — | — | — | — | — |
| kJ | — | 9 | 1 | 1 | — | — | — | 2 | 2 | — | — | — | 2 | 3 | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | W 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | WNW 3 | WNW 7 | WNW 9 | NW 8 | NW 7 | — | — | WSW 3 | SSW 3 | SW 3 | SW 4 | SW 3 | — | — | — | — | WNW 9 | NW 8 | NNW 5 |
| kJ | 22 | 17 | 3 | 428 | 955 | 492 | 131 | — | — | 6 | 2 | 7 | 13 | 3 | — | — | — | — | 252 | 129 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 72 | 72 | 59 | 145 | 335 | 770 | 274 | 88 | 154 | 274 | 274 | 26 | 26 | 220 | 26 | 11 | 36 | 26 | 35 | 132 | 11 |
Best forecast wave conditions in Antrim | |||||||||||||||||||||
Best forecast wave conditions in Ireland | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ballycastle surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Ballycastle Surf forecast
The above surf forecast table for Ballycastle provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Ballycastle can be found by selecting the local surf guide option on the grey menu. Our Ballycastle surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Ballycastle) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Ballycastle may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Antrim? If you are looking for accommodation near Ballycastle, camping, hotels and holiday cottages in Antrim, consider staying in Ballycastle which is 2 km (1 miles) away. Other places in and around Antrim where you can find information about places to rent, and car hire include Ballypatrick which is 6 km (4 miles) away, Coleraine, Ballymena and Campbeltown.
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