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

48hr Weather and Surf, issued 12 am Thursday 18 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)

How big are the waves at Ballyhiernan Bay today?

The current surf forecast for Ballyhiernan Bay at 6AM is: 3.5m 12s primary swell from a West-northwest direction and 0.1m 9s secondary swell from a North direction (forecast issued at 12:00am September 18). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (IST) & Date	Wave Height	Wave Period
Morning (18 Sep)	11ft (3.5m)	12s
Afternoon (18 Sep)	6.5ft (2.0m)	10s
Evening (18 Sep)	5ft (1.5m)	12s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

		Thursday 18								Friday 19								Saturday 20
	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	1 AM	4 AM	7 AM	10 AM	1 PM	4 PM	7 PM
Rating (10 max)	0	0	0	!	2	4	3	3	3	2	1	1	1	1	2	1	1	2	2	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	W	W	W	WNW	WNW	WNW	WNW	WNW	NNW	NNW	NNW	NNW	W	W	W	W	WNW	WNW	NNW	NNW	NNW	N	N	N
Period(s) (?)	14	13	13	12	11	11	10	10	12	12	12	11	8	10	10	10	10	10	11	11	10	7	8	8
Wave Graph (?)
kJ (?)	5607	5319	4346	3030	1948	1100	650	411	688	811	671	455	367	730	1381	1360	681	600	773	936	884	688	943	871
Wind (km/h)	SW	SW	SW	SW	SW	SW	SE	SSE	SSE	SSW	SW	SW	SW	SW	SW	WSW	WSW	WNW	N	NNE	NNE	NNE	NNE	NE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	off	off	off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross	cross	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on	cross- on
High Tide / height (m)				4:48AM 2.59				5:07PM 3.04				5:33AM 2.80				5:48PM 3.25				6:09AM 2.96				6:23PM 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

		Thursday 18								Friday 19								Saturday 20
Sunrise	-	-	-	-	7:07	-	-	-	-	-	-	-	7:09	-	-	-	-	-	-	-	7:11	-	-	-
Sunset	-	-	-	-	-	-	-	7:40	-	-	-	-	-	-	-	7:38	-	-	-	-	-	-	-	7:36

Rain (mm)	-	-	-	-	-	-	-	1	-	-	1	-	-	-	-	-	-	-	-	-	-	-	-	1
Temp. °C	14	14	14	14	14	15	14	14	15	17	14	13	13	15	15	14	14	13	13	13	13	12	11	11
Feels °C (?)	5	5	5	6	8	12	11	11	13	13	8	7	7	9	9	8	10	11	10	7	6	1	0	1

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 Cross-shore wind at Ballyhiernan Bay have swung cross-off (near gales from the SW at Malin Head 27 km from Ballyhiernan Bay). No surfable waves
49 minutes ago Ballyhiernan Bay
Wind Update Cross-off winds at Gweebarra (Dooey beach) are now cross-shore so expect speed-bumps in the surf (fresh winds from the WSW at Finner 42 km from Gweebarra (Dooey beach)). A 4.7m groundswell from the W is too big for here
49 minutes ago Gweebarra (Dooey beach)

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27 km away, 49 min ago

54 km/h

0.0

15.6

Air / Water (°C)

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