Ballyhiernan Bay Surf Forecast

/ Donegal (44 surf breaks) /

Ireland (149 surf breaks) / Lat Long: (55.25° N 7.71° W)

Surf Forecasts:

Ballyhiernan Bay surfForecast / Donegal / Ireland

12 Day Weather and Surf, issued 12 pm Wednesday 17 Sep 2025 IST

Forecast update in hr min s Forecast update imminent

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

Today's Ballyhiernan Bay sea temperature is 15.6° C
(Which is 2.0°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Ballyhiernan Bay this week:

The surf forecast for Ballyhiernan Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Sep 17) at 7PM. The primary swell is predicted to be 3.5m and 14s period with a secondary swell of 0.3m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Ballyhiernan Bay in the next 12 days are 3.5m 14s and forecast to arrive on Wednesday (Sep 17) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave Type	Time (IST) & Date	Wave Height & Period
Next good surf (1 star+)	7PM (Wed 17th Sep)	11ft (3.5m) 14s
Best Surf	7PM (Wed 17th Sep)	11ft (3.5m) 14s
Most Powerful	10PM (Wed 17th Sep)	11ft (3.5m) 14s

Table - best surf conditions forecast for Ballyhiernan Bay over the next 12 days.

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Some drizzle, heaviest during Wed morning. Very mild (max 16°C on Wed morning, min 11°C on Fri night). Winds decreasing (strong winds from the SW on Wed night, light winds from the SSE by Fri night).									Days 3-6 Weather Summary Heavy rain (total 28mm), heaviest during Sat afternoon. Very mild (max 13°C on Sat morning, min 8°C on Sat night). Winds decreasing (gales from the NNE on Sat afternoon, light winds from the SE by Mon night).
	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 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	1	0	2	3	2	1	2	3	1	0	0	0	0	0	0	0	0	1	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	WNW	W	W	WNW	WNW	NNW	NNW	W	W	N	N	N	N	N	N	N	N	NNW	NNW	WNW	WNW
Period(s) (?)	9	11	13	12	10	12	11	9	10	8	8	8	8	8	8	11	11	5	8	13	12
Wave Graph (?)
kJ (?)	64	1329	4763	2053	746	934	471	436	367	817	1165	913	829	636	446	116	57	36	85	158	210
Wind (km/h)	SW	SW	SW	SW	SE	SSW	SW	SW	SSE	NNE	NE	NNE	NNE	NNE	NNE	NE	NNE	NE	S	NE	N
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- off	cross- on	cross- on
High Tide / height (m)		4:13PM 2.78		4:48AM 2.59	5:07PM 3.04		5:33AM 2.80	5:48PM 3.25		6:09AM 2.96	6:23PM 3.40		6:41AM 3.09	6:55PM 3.47		7:11AM 3.17		7:24PM 3.47	7:39AM 3.20		7:52PM 3.40
Low Tide / height (m)			10:35PM 0.74	10:42AM 0.73		11:23PM 0.50	11:26AM 0.48		12:01AM 0.31	12:02PM 0.29		12:33AM 0.17	12:35PM 0.16		1:02AM 0.10		1:06PM 0.10	1:30AM 0.09		1:36PM 0.11	1:58AM 0.15

	Wednesday 17			Thursday 18			Friday 19			Saturday 20			Sunday 21			Monday 22			Tuesday 23
Sunrise	7:05	-	-	7:07	-	-	7:09	-	-	7:11	-	-	7:13	-	-	7:15	-	-	7:16	-	-
Sunset	-	7:44	-	-	7:40	-	-	7:38	-	-	7:36	-	-	7:32	-	-	7:30	-	-	7:28	-

Rain (mm)	1	-	-	-	-	-	-	-	-	1	10	15	-	1	1	-	-	-	-	-	2
Temp. °C	16	15	14	14	14	16	15	15	12	13	12	11	11	12	12	11	12	12	11	11	13
Feels °C (?)	9	7	5	9	13	12	10	10	9	6	2	-2	-2	0	1	2	5	6	8	6	10

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Donegal

Wind Update The wind is still cross-off at Ballyhiernan Bay (strong winds from the SSW at Malin Head 27 km from Ballyhiernan Bay). No surfable waves
41 minutes ago Ballyhiernan Bay

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27 km away, 41 min ago

47 km/h

SSW

0.0

15.6

Air / Water (°C)

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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.

Information about the Ballyhiernan Bay Surf forecast

The above surf forecast table for Ballyhiernan Bay provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Ballyhiernan Bay can be found by selecting the local surf guide option on the grey menu. Our Ballyhiernan Bay 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 (Ballyhiernan Bay) 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 Ballyhiernan Bay 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.

Ballyhiernan Bay is 28 km (17 miles) from Malin Head. If you plan a holiday in Donegal, look for hotels and other accommodation in Malin Head. Malin Head has rooms for a wide range of budgets as well as car hire and transport links.