Ranked by the OnlyBeaches Index (OBI) — a 1-10 score blending water purity, conditions, crowd levels and vibe. Updated every 30 minutes.
Ioka Beach (Isumi)
Quiet beach offering uninterrupted ocean views
Misaki Beach
Popular local beach with easy access and relaxed vibe
Nagano Beach (Isumi)
Peaceful sandy stretch with minimal development
Ohara Beach
Coastal favorite near Ohara port with open sandy stretch
Shiinoki Beach
Lesser-known sandy area favored by locals
Taito Beach
Renowned surf destination with consistent Pacific swells
Tsurigasaki Beach
Olympic surfing venue known for strong, clean waves
Isumi sits in Chiba Prefecture, Japan and is home to 7 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 Isumi or a quieter hidden cove, the list above is refreshed every 30 minutes using live Stormglass and OpenWeather data.
