Ballyhiernan Bay Surf Break

Lat Long: 55.25° N 7.71° W

Ballyhiernan Bay 48 hour detailed Surf Forecast

Issued: 12 am 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Ballyhiernan Bay sea temperature is
15.6°C
1.8° 

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 (12 Sep):

  • Morning surf: Morning surf (12 Sep, local time) - 8ft (2.5m), 12s period with WNW swell.
  • Afternoon surf: Afternoon surf (12 Sep, local time) - 7.5ft (2.3m), 13s period with WNW swell.
  • Evening surf: Evening surf (12 Sep, local time) - 6.5ft (2.0m), 12s period with WNW swell.

The current surf forecast for Ballyhiernan Bay at 8AM is: 2.5m 12s primary swell from a West-northwest direction and 0.1m 10s secondary swell from a North direction (forecast issued at 12:00am September 12). The wind direction is predicted to be cross-shore.

Time (IST) & DateWave HeightWave Period
Morning (12 Sep)8ft (2.5m)12s
Afternoon (12 Sep)7.5ft (2.3m)13s
Evening (12 Sep)6.5ft (2.0m)12s

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


Short Range Forecast

Heavy rain (total 21mm), heaviest during Fri night. Warm (max 20°C on Mon afternoon, min 12°C on Sat night). Winds decreasing (strong winds from the WSW on Fri night, calm by Sun afternoon).

Saturday
12
Sunday
13
Monday
14
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
1
2
0
1
1
0
2
2
3
3
3
2
2
2
2
2
1
1
2
2
1
1
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
WNW
11
2.1
WNW
13
2.5
WNW
12
2.5
WNW
12
2.4
WNW
13
2.3
WNW
13
2.1
WNW
12
1.9
WNW
12
1.8
NW
12
1.7
WNW
11
1.5
WNW
11
1.4
NW
11
1.2
NW
10
1.1
NW
10
1.1
NW
10
1
NW
10
0.9
NW
9
0.5
N
13
0.6
NNW
13
0.6
NNW
13
0.6
NNW
13
0.9
W
8
1
W
9
1.3
W
9
Wave Graph
Metric surfscale
Energy kJ
575
1387
1587
1818
1818
1748
1277
972
872
634
513
453
308
240
208
177
118
85
133
133
131
121
148
268
Wind (km/h)
40
SSE
30
S
45
WSW
30
WSW
30
WSW
25
NW
15
WNW
10
W
10
SW
10
SW
10
SSW
10
SSE
10
SSE
5
W
10
SSE
15
SSE
20
S
20
S
15
SSE
20
SSE
15
S
20
SSW
20
SSW
30
WSW
Wind State
off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross
cross-off
cross-off
cross-off
off
off
glassy
off
off
off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
High Tide
7:32AM3.32m
7:48PM3.68m
8:05AM3.31m
8:22PM3.53m
8:38AM3.23m
8:54PM3.31m
Low Tide
1:22AM-0.12m
1:27PM-0.10m
1:56AM-0.07m
2:03PM-0.03m
2:28AM0.06m
2:38PM0.12m
mod rain
mod rain
rain showers
cloud
cloud
part cloud
clear
part cloud
cloud
part cloud
clear
part cloud
cloud
part cloud
cloud
part cloud
part cloud
part cloud
cloud
light rain
cloud
light rain
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:57
7:53
7:52
 mm
7
8
2
2
1
1
Temp °C
13
15
17
16
15
14
14
13
13
12
12
12
16
18
18
17
16
16
16
16
19
20
18
17
Feels °C
6
10
9
11
11
10
11
11
11
11
11
10
14
17
17
15
14
13
14
14
17
18
16
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.


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