Ballyhiernan Bay Surf Break

Lat Long: 55.25° N 7.71° W

Ballyhiernan Bay 48 hour detailed Surf Forecast

Issued: 6 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Ballyhiernan Bay sea temperature is
16.4° C
1.9° 

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


How big are the waves at Ballyhiernan Bay today (21 Aug):

  • Morning surf: Morning surf (21 Aug, local time) - 4.5ft (1.3m), 6s period with NNW swell.
  • Afternoon surf: Afternoon surf (21 Aug, local time) - 4ft (1.2m), 6s period with NNW swell.
  • Evening surf: Evening surf (21 Aug, local time) - 3.5ft (1.0m), 6s period with NNW swell.

The current surf forecast for Ballyhiernan Bay at 1AM is: 1.6m 7s primary swell from a North-northwest direction and 0.5m 8s secondary swell from a West-northwest direction, 0.1m 15s secondary swell from a West direction (forecast issued at 06:00pm August 20). The wind direction is predicted to be onshore.

Time (IST) & DateWave HeightWave Period
Morning (21 Aug)4.5ft (1.3m)6s
Afternoon (21 Aug)4ft (1.2m)6s
Evening (21 Aug)3.5ft (1.0m)6s

Table - waves today at Ballyhiernan Bay. (Swell directed towards the surf break)


Short Range Forecast

Light rain (total 2mm), mostly falling on Thu night. Very mild (max 15°C on Sat morning, min 12°C on Fri afternoon). Winds decreasing (fresh winds from the N on Thu afternoon, light winds from the SW by Sun morning).

Thu
20
Friday
21
Saturday
22
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.7
N
7
1.6
N
7
1.6
NNW
7
1.6
NNW
7
1.3
NNW
6
1.4
NNW
6
1.3
NNW
6
1.2
NNW
6
1.2
NNW
6
1.2
NNW
6
1
NNW
6
0.9
NNW
5
0.9
NNW
5
0.8
NNW
5
0.5
N
5
0.3
W
9
0.6
NNW
5
0.6
NW
5
0.5
NW
5
Wave Graph
Metric surfscale
Energy kJ
311
247
247
206
143
139
130
112
112
94
65
51
40
31
13
14
16
13
11
Wind (km/h)
35
N
35
N
35
N
35
N
30
N
30
N
30
NNE
25
N
25
N
25
N
25
N
25
NNW
25
NNW
20
NNW
15
NW
15
NW
20
NW
20
WNW
15
WNW
Wind State
on
on
on
on
on
cross-on
cross-on
cross-on
on
on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
00:29AM2.24m
1:17PM2.23m
2:11AM2.11m
3:09PM2.25m
Low Tide
6:12PM1.18m
6:45AM1.26m
7:45PM1.34m
8:25AM1.33m
9:33PM1.30m
part cloud
clear
clear
part cloud
part cloud
rain showers
rain showers
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:53
8:52
8:49
 mm
1
1
Temp °C
14
13
13
13
13
13
13
13
12
13
13
13
13
13
15
14
14
14
14
Feels °C
7
5
5
6
7
7
7
7
6
7
8
8
8
9
12
11
11
11
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Ballyhiernan Bay 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.


Nearest locationNearest