Ranked by the OnlyBeaches Index (OBI) — a 1-10 score blending water purity, conditions, crowd levels and vibe. Updated every 30 minutes.
Hamakaido Beach
Long coastal strip popular for walks and casual beach time
Maehama Beach
Quiet stretch with consistent surf and fewer tourists
Monobe Bay Beach
Broad sandy area near river mouth with open bay views
Monobe Inlet Beach
Lesser-known inlet beach overshadowed by larger nearby coastlines
Monobe River Mouth Beach
Natural river-meets-sea setting with wide open sandy space
Tosa Kuroshio Beach
Popular open coastline known for waves and relaxed local vibe
Nankoku sits in Kōchi Prefecture, Japan and is home to 6 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 Nankoku or a quieter hidden cove, the list above is refreshed every 30 minutes using live Stormglass and OpenWeather data.
