Oyodogawa (Miyazaki)

Oyodogawa is a surfing spot at the mouth of the Oyodo River in Miyazaki City, known for producing both right and left waves. The break is sandy and rivermouth-driven, with a reputation for powerful surf when swell and sandbar formation line up. Providers describe the working swell as starting around 1.0–1.5 m, holding up to about 2.5 m+ (and beyond during larger typhoon-driven events). Wave quality is characterized as a regional classic/high-quality peak, and rides can be long: normal sessions are often around 50–150 m, while exceptional days may reach roughly 150–300 m (with some notes citing up to ~300 m). Wind is commonly reported from the west as the optimal/offshore direction, supporting cleaner, more groomed conditions. Seasonal best periods emphasize typhoon-driven swell (with one set of notes highlighting August through October as particularly consistent), while a separate set of monthly guidance also calls out August, September, and October as standout months for wind/wave windows. Because it is a rivermouth, safety risks are a core consideration. Hazards include pollution after heavy rainfall, reef/submerged hazards, and strong river and rip currents. It’s also noted that sandbars shift often, meaning the best takeoff point can move after storms—so checking conditions and water quality after rain is important.