Surf Break

Lat Long: 55.22° N 6.23° W

Ballycastle Surf Forecast and Surf Report

Issued: 6 am 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Ballycastle sea temperature is
14.4°C
1.6° 

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


Ballycastle surf forecast from 17 Oct 2026:

  • Best quality surf: Wednesday 21 Oct, 10PM (local time) - 6.5ft (2.0m), 13s period, NW swell with cross-offshore winds.
  • Most powerful swell: Wednesday 21 Oct, 10AM (local time) - 15ft (4.5m), 10s period, WNW swell with 4,447 kJ wave energy.
  • Next surfable swell (1★+): Saturday 17 Oct, 4PM (local time) - 3.5ft (1.1m), 12s 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 Saturday (Oct 17) at 4PM. The primary swell is predicted to be 1.1m and 12s 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 4.5m 10s and forecast to arrive on Wednesday (Oct 21) at 10AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Wednesday (Oct 21) at 4AM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+) 4PM (Sat 17th Oct)3.5ft (1.1m) 12s
Best Surf10PM (Wed 21st Oct)6.5ft (2.0m) 13s
Most Powerful10AM (Wed 21st Oct)15ft (4.5m) 10s

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


Short Range Forecast

Mostly dry. Very mild (max 12°C on Mon afternoon, min 7°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Tue night. Very mild (max 12°C on Tue morning, min 6°C on Wed night). Winds increasing (light winds from the SW on Wed afternoon, strong winds from the W by Thu night).

Saturday
17
Sunday
18
Monday
19
Tuesday
20
Wednesday
21
Thursday
22
Friday
23
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
2
1
1
1
1
1
2
3
2
2
0
0
0
3
1
1
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)
1.3
NW
12
1.1
NW
12
0.9
NW
11
0.7
NW
10
0.8
WNW
10
0.7
WNW
13
0.9
WNW
16
1.4
NW
15
1.5
NW
14
1.3
WNW
13
1.2
WNW
13
1.2
WNW
13
4.5
WNW
10
2.5
NW
9
1.9
NW
13
1.3
WNW
12
1.2
WNW
12
1.2
WNW
11
1.2
WNW
11
1.9
WNW
11
1.4
WNW
11
Wave Graph
Metric surfscale
Energy kJ
440
309
176
110
125
173
441
795
902
599
451
444
4447
906
1147
480
371
346
328
808
450
Wind (km/h)
15
N
5
E
10
SSW
5
SSW
5
SE
10
SE
15
ESE
25
SE
15
SSE
20
SSE
15
SE
20
SW
25
W
20
WSW
15
SSW
20
SSE
30
SSE
40
W
25
SW
30
WSW
10
WNW
Wind State
cross-on
glassy
cross-off
cross-off
glassy
off
cross-off
off
off
off
off
cross
cross-on
cross-on
cross-off
cross-off
off
cross-on
cross
cross
cross-on
High Tide
6:11PM0.48m
9:07AM0.43m
5:58PM0.50m
5:52PM0.51m
5:32PM0.53m
5:54AM0.25m
4:58PM0.56m
4:18AM0.28m
4:54PM0.60m
4:42AM0.33m
5:10PM0.64m
Low Tide
1:19PM0.31m
1:32AM0.09m
1:23PM0.35m
2:04AM0.13m
2:35AM0.18m
2:54AM0.23m
8:44AM0.23m
00:29AM0.25m
9:11AM0.18m
11:47PM0.23m
9:37AM0.14m
11:28PM0.20m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
mod rain
part cloud
part cloud
clear
cloud
light rain
rain showers
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:56
—
—
7:58
—
—
8:00
—
—
8:03
—
—
8:04
—
—
8:07
—
—
8:08
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
6:22
—
—
6:19
—
—
6:16
—
—
6:15
—
—
6:12
—
—
6:09
—
—
6:07
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 mm
—
—
—
—
—
—
—
—
—
—
—
6
—
—
—
—
4
2
—
—
2
Temp °C
9
9
8
9
10
9
10
12
10
12
10
10
10
10
6
11
12
10
8
8
9
Feels °C
6
7
6
7
9
7
4
7
6
7
6
5
3
5
2
5
7
0
1
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 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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