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Ballycastle surfForecast / Antrim / Ireland
12 Day Weather and Surf, issued 12 am Monday 25 Aug 2025 BST
Best Forecast Surf Conditions for Ballycastle this week:
The surf forecast for Ballycastle over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 26) at 7PM. The primary swell is predicted to be 1.9m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Ballycastle in the next 12 days are 2.1m 18s and forecast to arrive on Tuesday (Aug 26) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Wednesday (Aug 27) at 1PM.
| Wave Type | Time (BST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Tue 26th Aug) | 6ft (1.9m) 16s |
| Best Surf | 7PM (Tue 26th Aug) | 6ft (1.9m) 16s |
| Most Powerful | 4AM (Tue 26th Aug) | 7ft (2.1m) 18s |
Table - best surf conditions forecast for Ballycastle over the next 12 days.
Short Range Forecast Light rain (total 2mm), mostly falling on Tue night. Warm (max 21°C on Mon morning, min 13°C on Tue night). Mainly fresh winds. | Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Thu afternoon. Very mild (max 16°C on Thu morning, min 13°C on Wed night). Wind will be generally light. | |||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sun 31 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 12 | 19 | 17 | 16 | 15 | 14 | 13 | 13 | 13 | 13 | 12 | 11 | 10 | 6 | 5 | 8 | 6 | 6 | 6 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 39 | 24 | 42 | 2592 | 2624 | 1794 | 1452 | 889 | 669 | 659 | 799 | 689 | 341 | 133 | 91 | 108 | 50 | 76 | 67 | 102 | 175 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | cross- off | cross- off | off | cross- off | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross- on | on | |
High Tide / height (m) | 5:07AM 0.42 | 7:56PM 0.65 | 5:48AM 0.47 | 7:53PM 0.61 | 6:27AM 0.51 | 7:58PM 0.58 | 7:04AM 0.53 | 8:09PM 0.54 | 7:38AM 0.53 | 8:20PM 0.50 | 8:07AM 0.51 | 8:21PM 0.47 | 8:28AM 0.47 | |||||||||
Low Tide / height (m) | 1:11AM 0.29 | 12:32PM -0.06 | 1:28AM 0.29 | 12:56PM -0.04 | 1:38AM 0.28 | 1:15PM -0.00 | 1:39AM 0.25 | 1:30PM 0.05 | 1:39AM 0.22 | 1:45PM 0.11 | 1:48AM 0.19 | 2:01PM 0.16 | 2:05AM 0.18 | 2:16PM 0.22 | ||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sun 31 | ||||||||||||||||
| Sunrise | - | 6:16 | - | - | 6:18 | - | - | 6:20 | - | - | 6:22 | - | - | 6:22 | - | - | 6:24 | - | - | 6:26 | - | |
| Sunset | - | - | 8:36 | - | - | 8:34 | - | - | 8:30 | - | - | 8:29 | - | - | 8:25 | - | - | 8:23 | - | - | 8:21 | |
 |  |  |  |  | |  |  | |  | | | |  | | | | | | | | ||
Rain (mm) | - | - | - | - | - | - | 1 | 1 | - | - | - | 1 | 1 | 2 | 1 | - | 1 | - | - | - | 2 | |
| Temp. °C | 16 | 21 | 21 | 17 | 17 | 16 | 14 | 15 | 18 | 14 | 16 | 14 | 14 | 15 | 16 | 14 | 15 | 14 | 13 | 15 | 15 | |
| Feels °C (?) | 15 | 17 | 17 | 15 | 11 | 14 | 12 | 12 | 15 | 11 | 13 | 11 | 11 | 13 | 14 | 13 | 13 | 12 | 11 | 11 | 12 | |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Antrim
Cross-off wind 6 km from Ballycastle has swung offshore (light winds from the SSE at Ballypatrick Forest). 0.3m 10s swell from the WNW with a 0.1m 20s long period groundswell from the NW. 2 swells combining to make bigger set waves.
Actual: 38 min ago
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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 12 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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