Portmarnock Beach

Everything you need to know about access, tide times and best tips for your next outdoor swim here.
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April 2010

For a beach that’s only a 30 minute drive from Dublin city, Portmarnock has a nice, get away from it all feel to it. Yes, it’ s very much an urban environment, but when you get onto that long expanse of beach and look over to Lambay Island and Ireland’s Eye you can quickly forget the city stresses.

Portmarnock beach is both long and wide. It must be at least 4 kilometres in length and is great for walkers. There is plenty of space for children to play and it’s also a popular location for kite flyers, horse riders and the occasional wind surfer. The water is shallow and good for children swimming as they aren’t out of their depth too quickly.

As you go up the beach you move more into grassy, sand dune territory where you can find some shelter. Otherwise the beach is open and exposed.

The beach also has the advantage of being backed onto by the world famous Portmarnock Golf Club and you can scramble up the dunes to peek into thisΒ  still men only domain.

The area is well served with a couple of hotels.Β  There is also a good, free public car park and decent toilets at the entrance . Blue Flag beach.

Lifeguards are on duty during the summer months.

The beach is buggy accessible but we didn’ t see a wheelchair access.

Directions

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From Dublin city it’s about a 30 minute drive on the R106 along the seafront and then a sign-posted left turn onto the R105. Follow this road through Portmarnock village and then watch out for a car park on your right just past the Portmarnock Golf Hotel.

Also served by Dublin Bus check www.dublinbus.ie for details.

Tide times for nearby DΓΊn Laoghaire

map

March 15th, 2026

Time Type Height
02:55 low 1.51m
09:16 high 3.39m
15:24 low 1.16m
21:55 high 3.37m

March 16th, 2026

Time Type Height
03:31 low 1.24m
09:57 high 3.61m
15:56 low 0.88m
22:31 high 3.55m

March 17th, 2026

Time Type Height
04:00 low 0.97m
10:31 high 3.81m
16:25 low 0.62m
23:01 high 3.71m

View full 7 day tide times.

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Your Swim Stories & Adventures! πŸŠβ€β™€οΈ

We would love to hear your stories and memories from your visit to this spot. Whether it was a peaceful day soaking in the views or an adventurous outing braving the wild waters for a swim or a dip, your insights can inspire others.

Share your favourite moments, tips for navigating the currents, or even the best times to visit. Your experience matters to us and can help fellow outdoor swimmers discover the beauty of this hidden gem.

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