Black Rocks Surf Forecast

/ Antrim (7 surf breaks) /

Ireland (149 surf breaks)

Surf Forecasts:

Black Rocks surfForecast / Antrim / Ireland

12 Day Weather and Surf, issued 5 am Tuesday 18 Nov 2025 GMT

Forecast update in hr min s Forecast update imminent

Black Rocks surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Today's Black Rocks sea temperature is 12.6° C
(Which is 1.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Black Rocks this week:

The surf forecast for Black Rocks over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Nov 21) at 3AM. The primary swell is predicted to be 0.7m and 6s period with a secondary swell of 0.1m and 15s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Black Rocks in the next 12 days are 2.5m 9s and forecast to arrive on Tuesday (Nov 25) at 12AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Monday (Nov 24) at 9AM.

Wave Type	Time (GMT) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Fri 21st Nov)	2.5ft (0.7m) 6s
Best Surf	3PM (Sat 22nd Nov)	3ft (0.9m) 12s
Most Powerful	12AM (Tue 25th Nov)	8ft (2.5m) 9s

Table - best surf conditions forecast for Black Rocks over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Heavy rain (total 20mm), heaviest during Tue morning. Mild temperatures (max 9°C on Tue morning, min 5°C on Tue night). Winds decreasing (near gales from the N on Tue night, light winds from the W by Thu night).									Days 3-6 Weather Summary Light rain (total 8mm), mostly falling on Fri morning. Mild temperatures (max 9°C on Fri night, min 3°C on Fri morning). Wind will be generally light.
	Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	1	2	0	1	0	1	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	NW	NNW	N	NNW	NNW	NNW	NNW	NNW	NNW	WNW	NW	WNW	NW	NW	NW	NW	NW	NW	NW	NNE	NNW
Period(s) (?)	6	8	8	9	8	8	7	7	6	14	14	11	10	12	11	10	11	10	10	6	9
Wave Graph (?)
kJ (?)	136	572	1119	1051	889	691	355	261	66	18	52	75	127	212	147	148	169	151	112	207	1211
Wind (km/h)	WNW	NNW	N	N	N	N	N	N	W	S	SSW	WNW	SW	SW	W	S	SW	S	NE	NNE	NNE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	on	on	on	on	on	on	on	cross	off	off	cross	cross- off	cross- off	cross	off	cross- off	off	cross- on	on	on
High Tide / height (m)		5:35PM 1.97		5:53AM 2.01		6:02PM 1.97	6:25AM 2.09		6:30PM 1.97	6:58AM 2.14		7:01PM 1.95	7:31AM 2.15		7:34PM 1.91	8:06AM 2.12		8:10PM 1.85	8:45AM 2.07		8:51PM 1.76
Low Tide / height (m)	10:54AM 0.81		11:53PM 0.77	11:32AM 0.80		12:19AM 0.75		12:08PM 0.82	12:47AM 0.75		12:45PM 0.88	1:15AM 0.78		1:23PM 0.96	1:46AM 0.83		2:03PM 1.04	2:19AM 0.89		2:48PM 1.11	2:55AM 0.96

	Tuesday 18			Wednesday 19			Thursday 20			Friday 21			Saturday 22			Sunday 23			Monday 24
Sunrise	8:03	-	-	8:06	-	-	8:07	-	-	8:10	-	-	8:11	-	-	8:12	-	-	8:15	-	-
Sunset	-	4:17	-	-	4:15	-	-	4:15	-	-	4:14	-	-	4:12	-	-	4:10	-	-	4:09	-

Rain (mm)	4	1	4	2	3	5	1	-	-	2	2	-	-	1	2	1	-	-	1	2	-
Temp. °C	9	8	6	6	5	6	7	7	7	3	5	9	7	8	7	7	8	6	8	8	9
Feels °C (?)	1	-3	-6	-5	-6	-4	-2	-1	2	-3	0	3	3	4	5	2	3	2	0	-1	1

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

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Information about the Black Rocks Surf forecast

The above surf forecast table for Black Rocks provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Black Rocks can be found by selecting the local surf guide option on the grey menu. Our Black Rocks 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 (Black Rocks) 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 Black Rocks 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 Black Rocks, camping, hotels and holiday cottages in Antrim, consider staying in Coleraine which is 7 km (4 miles) away. Other places in and around Antrim where you can find information about places to rent, and car hire include Ballycastle which is 27 km (17 miles) away, Ballypatrick, Ballymena and Malin Head.