Which beach should I pick?
In September, Ondarreta averages 24.0°C and Zurriola averages 24.0°C. The two beaches are 2 km apart on the Bay of Biscay.
For families, Ondarreta is the safer pick — shallow, calm and accessible.
Ondarreta vs Zurriola
Side-by-side sea temperature, swim score and wave conditions. The two beaches sit roughly 2 km apart.