Ballyhiernan Bay Surf Break

Lat Long: 55.25° N 7.71° W

Ballyhiernan Bay 48 hour detailed Surf Forecast

Issued: 12 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Ballyhiernan Bay sea temperature is
15.1°C
1.7° 

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 Sep):

  • Morning surf: Morning surf (21 Sep, local time) - 5ft (1.5m), 12s period with WNW swell.
  • Afternoon surf: Afternoon surf (21 Sep, local time) - 5ft (1.5m), 11s period with WNW swell.
  • Evening surf: Evening surf (21 Sep, local time) - 4.5ft (1.4m), 10s period with WNW swell.

The current surf forecast for Ballyhiernan Bay at 9PM is: 1.4m 10s primary swell from a West-northwest direction (forecast issued at 12:00pm September 21). The wind direction is predicted to be offshore and the swell rating is 2.

Time (IST) & DateWave HeightWave Period
Morning (21 Sep)5ft (1.5m)12s
Afternoon (21 Sep)5ft (1.5m)11s
Evening (21 Sep)4.5ft (1.4m)10s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Tue afternoon. Warm (max 21°C on Mon afternoon, min 10°C on Wed night). Mainly fresh winds.

Mon
21
Tuesday
22
Wednesday
23
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)
2
2
0
2
2
1
2
3
1
2
2
2
2
2
2
1
0
1
1
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
WNW
12
1.4
WNW
11
1.5
WNW
11
1.4
WNW
10
1.4
WNW
10
1.5
WNW
10
1.5
WNW
10
1.6
WNW
11
1.6
W
11
1.5
W
11
1.3
WNW
11
1.8
WNW
15
2.1
WNW
14
2.1
WNW
14
2.1
WNW
14
2.1
WNW
13
1.9
WNW
13
1.8
WNW
12
1.7
WNW
12
1.6
WNW
12
1.5
WNW
11
Wave Graph
Metric surfscale
Energy kJ
583
495
476
370
356
407
416
541
606
525
415
1413
1748
1797
1629
1449
1226
1032
850
710
563
Wind (km/h)
20
SSW
20
SW
20
WSW
15
SW
15
SSE
15
S
20
S
15
S
15
NW
5
W
10
W
10
NNW
15
NNW
15
WNW
15
WNW
15
WNW
20
NW
20
NW
10
NW
5
E
15
SE
Wind State
cross-off
cross-off
cross
cross-off
off
cross-off
off
off
cross-on
cross
cross
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
glassy
off
High Tide
3:56PM2.40m
4:23AM2.29m
4:43PM2.65m
5:02AM2.52m
5:17PM2.90m
Low Tide
9:23AM1.26m
10:17PM1.13m
10:19AM1.01m
10:57PM0.87m
10:57AM0.76m
clear
clear
clear
clear
clear
clear
part cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
cloud
clear
rain showers
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:13
7:15
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:32
7:30
7:28
 mm
1
1
1
4
1
Temp °C
18
20
21
20
19
18
16
16
13
12
12
12
12
12
12
13
12
12
12
12
12
Feels °C
16
17
19
19
17
16
13
14
11
11
11
10
10
9
9
9
8
8
10
11
9
  • 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 

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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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