Best beaches in Karatsu

4 ranked beaches in Karatsu, Saga Prefecture

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 Karatsu

1
Hamasaki Beach
Relaxed beach near main strip
7.0
2
Kagami Coast
Quiet pine-lined coast
7.0
3
Nijinomatsubara Beach
Iconic pine-lined scenic beach
7.0
4
Nishinohama Beach
Wide peaceful sandy stretch
7.0

What makes Karatsu's beaches stand out?

Karatsu sits in Saga Prefecture, Japan and is home to 4 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 Karatsu or a quieter hidden cove, the list above is refreshed every 30 minutes using live Stormglass and OpenWeather data.