Lackan Bay Surf Forecast

/ Mayo and Achill Island (14 surf breaks) /

Ireland (149 surf breaks) / Lat Long: (54.28° N 9.24° W)

Surf Forecasts:

Lackan Bay surfForecast / Mayo and Achill Island / Ireland

12 Day Weather and Surf, issued 6 am Tuesday 26 Aug 2025 IST

Forecast update in hr min s Forecast update imminent

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

Today's Lackan Bay sea temperature is 17.5° C
(Which is 2.5°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Lackan Bay this week:

The surf forecast for Lackan Bay over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 26) at 10AM. The primary swell is predicted to be 5.5m and 16s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Lackan Bay in the next 12 days are 5.5m 16s and forecast to arrive on Tuesday (Aug 26) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Thursday (Aug 28) at 10AM.

Wave Type	Time (IST) & Date	Wave Height & Period
Next good surf (1 star+)	10AM (Tue 26th Aug)	18ft (5.5m) 16s
Best Surf	10AM (Tue 26th Aug)	18ft (5.5m) 16s
Most Powerful	10AM (Tue 26th Aug)	18ft (5.5m) 16s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

Print Table

	Short Range Forecast Moderate rain (total 19mm), heaviest on Wed afternoon. Very mild (max 16°C on Tue afternoon, min 12°C on Tue night). Mainly fresh winds.									Days 3-6 Weather Summary Heavy rain (total 23mm), heaviest during Sat morning. Very mild (max 17°C on Sun afternoon, min 12°C on Sat night). Mainly fresh winds.
	Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 01
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	!	!	!	!	4	!	!	!	!	2	1	2	2	0	1	4	2	4	4	2	4
Swell Height Map See all maps
Wave Height (m) & direction (?)	W	W	W	W	W	W	W	W	WNW	WNW	WNW	WNW	W	W	W	W	W	W	W	WNW	WNW
Period(s) (?)	16	16	14	13	12	12	13	12	11	10	9	9	9	9	8	12	12	11	10	11	12
Wave Graph (?)
Energy (?)	15000	11609	6804	3691	2877	3533	5873	5061	3988	1847	939	404	291	374	490	2334	2344	1938	1496	2165	3512
Wind (km/h)	SSW	SW	SSE	SW	SW	SSW	SSW	WNW	W	W	W	SW	S	W	W	WSW	W	WSW	W	NW	WSW
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	off	cross- off	off	off	off	off	cross- off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	off	cross- off	cross- off	cross- off	cross	off
High Tide / height (m)			8:31PM 3.49	8:50AM 3.05		9:03PM 3.27	9:21AM 2.94		9:34PM 3.01	9:53AM 2.78		10:08PM 2.74	10:31AM 2.60		10:48PM 2.47	11:21AM 2.42		11:47PM 2.24	12:40PM 2.28		1:22AM 2.12
Low Tide / height (m)		2:09PM 0.27	2:39AM 0.29		2:42PM 0.40	3:09AM 0.46		3:15PM 0.58	3:38AM 0.66		3:50PM 0.81		4:11AM 0.89	4:31PM 1.05		4:51AM 1.11	5:27PM 1.28		5:54AM 1.30		7:08PM 1.43

	Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 01
Sunrise	6:31	-	-	6:33	-	-	6:35	-	-	6:37	-	-	6:39	-	-	6:41	-	-	6:43	-	-
Sunset	-	8:43	-	-	8:40	-	-	8:38	-	-	8:36	-	-	8:34	-	-	8:30	-	-	8:29	-

Rain (mm)	2	-	3	1	4	6	2	1	-	1	1	1	15	2	2	-	1	-	1	-	-
Temp. °C	15	16	13	15	14	14	16	16	14	15	16	14	13	14	13	16	17	13	16	15	13
Feels °C (?)	10	10	10	10	10	9	13	12	11	10	11	12	11	9	9	11	12	10	13	11	11

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 Mayo and Achill Island

Wind Update The wind is still cross-off at Lackan Bay (light winds from the S at ConnaughtAirport 50 km from Lackan Bay). A 5.0m long period groundswell from the W is too big for here
46 minutes ago Lackan Bay

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50 km away, 46 min ago

18 km/h

0.0

17.5

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 Lackan 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 Lackan Bay Surf forecast

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

Are you planning a holiday in Mayo and Achill Island? If you are looking for accommodation near Lackan Bay, camping, hotels and holiday cottages in Mayo and Achill Island, consider staying in Ballina which is 18 km (11 miles) away. Other places in and around Mayo and Achill Island where you can find information about places to rent, and car hire include Belmullet which is 50 km (31 miles) away, Sligo, Westport and Claremorris.