Which beach should I pick?
In September, Portmarnock averages 15.0°C and Seapoint averages 15.0°C. The two beaches are 15 km apart on the different seas.
Both beaches are family-friendly with calm, accessible water.
Portmarnock vs Seapoint
Side-by-side sea temperature, swim score and wave conditions. The two beaches sit roughly 15 km apart.