Ballycastle Surf Break

Lat Long: 55.22° N 6.23° W

Ballycastle Surf Forecast and Surf Report

Issued: 6 am 09 Sep 2026 (local time)

Forecast update in  hr  min

Today's Ballycastle sea temperature is
15.0°C
0.8° 

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


Ballycastle surf forecast from 9 Sep 2026:

  • Best quality surf: Saturday 12 Sep, 10PM (local time) - 5.5ft (1.7m), 12s period, NW swell with glassy winds.
  • Most powerful swell: Saturday 12 Sep, 1PM (local time) - 7ft (2.1m), 13s period, WNW swell with 1,407 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 9 Sep, 7PM (local time) - 3ft (0.9m), 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 Wednesday (Sep 09) at 7PM. The primary swell is predicted to be 0.9m and 8s period with a secondary swell of 0.4m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Ballycastle in the next 16 days are 2.1m 13s and forecast to arrive on Saturday (Sep 12) 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 0.7m 4s period and expected on Thursday (Sep 10) at 10AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 9th Sep)3ft (0.9m) 8s
Best Surf10PM (Sat 12th Sep)5.5ft (1.7m) 12s
Most Powerful 1PM (Sat 12th Sep)7ft (2.1m) 13s

Table - best surf conditions forecast for Ballycastle over the next 16 days.


Short Range Forecast

Light rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 16°C on Thu afternoon, min 12°C on Wed night). Winds increasing (calm on Wed afternoon, fresh winds from the SSW by Fri night).

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Mon night. Warm (max 21°C on Mon afternoon, min 13°C on Sat night). Winds increasing (calm on Sat night, fresh winds from the S by Mon night).

Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
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
1
0
0
0
0
0
1
0
1
3
1
1
1
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
NW
9
1.1
NW
8
0.6
NW
7
0.5
WNW
7
0.5
W
9
0.8
WNW
6
1
WNW
8
1.2
WNW
8
1.3
WNW
11
1.9
WNW
12
1.9
NW
12
1.6
NW
12
1.4
NW
11
1.2
NW
11
1
NW
10
0.6
NW
9
0.6
WNW
8
0.7
WNW
11
0.9
WNW
10
0.5
W
10
0.4
WNW
10
Wave Graph
Metric surfscale
Energy kJ
351
156
34
30
43
56
136
193
426
1091
1118
671
431
328
184
64
46
121
187
50
35
Wind (km/h)
20
NW
10
WNW
15
S
30
S
20
SW
30
W
15
W
10
WSW
35
S
30
W
10
WNW
5
N
10
NW
5
NW
15
SSE
20
S
20
SSW
25
SW
25
WSW
25
WNW
25
WNW
Wind State
on
cross-on
cross-off
cross-off
cross
cross-on
cross-on
cross
cross-off
cross-on
on
glassy
on
on
cross-off
cross-off
cross-off
cross
cross
cross-on
on
High Tide
6:34PM0.73m
6:25AM0.31m
7:02PM0.74m
6:24AM0.32m
7:25PM0.72m
4:36AM0.38m
7:36PM0.67m
5:15AM0.45m
7:23PM0.60m
5:54AM0.51m
7:08PM0.56m
6:32AM0.56m
7:12PM0.52m
Low Tide
10:13AM0.10m
3:13AM0.24m
10:49AM0.02m
00:26AM0.26m
11:24AM-0.03m
00:37AM0.26m
11:57AM-0.05m
00:53AM0.25m
12:28PM-0.04m
1:07AM0.23m
12:56PM0.01m
1:15AM0.20m
1:18PM0.08m
1:13AM0.17m
part cloud
part cloud
cloud
part cloud
rain showers
part cloud
part cloud
part cloud
rain showers
part cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
light rain
rain showers
part cloud
rain showers
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:46
6:48
6:50
6:52
6:54
6:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:58
7:55
7:52
7:51
7:47
7:45
7:43
 mm
1
2
1
8
1
Temp °C
15
15
13
14
16
14
15
16
15
15
15
14
14
15
15
19
21
19
16
15
13
Feels °C
11
13
11
9
14
9
11
14
11
11
13
14
12
14
12
17
19
16
12
11
8
  • 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 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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