Best beaches in Castrillón

2 ranked beaches in Castrillón, Asturias

Ranked by the OnlyBeaches Index (OBI) — a 1-10 score blending water purity, conditions, crowd levels and vibe. Updated every 30 minutes.

All beaches in Castrillón

1
Playa de Bayas
Long natural strand beside dunes, valued for space and wilder feel near Avilés

7.0

2

Playa de Salinas

Long urban surf beach with promenade access and strong visitor infrastructure

7.0

What makes Castrillón's beaches stand out?

Castrillón sits in Asturias, Spain and is home to 2 ranked beaches on OnlyBeaches. Every beach here is scored by the OnlyBeaches Index — a 1-10 metric blending water purity, live conditions (waves, water temperature, wind), crowd intelligence and vibe.

Whether you're after the highest-scoring beach in Castrillón or a quieter hidden cove, the list above is refreshed every 30 minutes using live Stormglass and OpenWeather data.