Which beach should I pick?
In September, Dollymount Strand averages 15.0°C and Portmarnock averages 15.0°C. The two beaches are 6 km apart on the Irish Sea.
Both beaches are family-friendly with calm, accessible water.
Dollymount Strand vs Portmarnock
Side-by-side sea temperature, swim score and wave conditions. The two beaches sit roughly 6 km apart.