Ozaki - surf spot statistics

Ozaki, Japan, offers surfable conditions year-round, though the best months for quality waves and favorable winds are typically from July to November. During this period, the swell consistency improves, with ground swell percentages rising significantly in August (29%) and remaining strong through September (27%) and October (25%). These months also bring larger mean swell sizes, averaging 1.5m to 1.6m, providing more powerful and cleaner waves compared to the rest of the year. Wind conditions are most favorable in July and August (29% good winds), though they start deteriorating by September (18%). Early winter months like December and January see smaller swells (1.1m) and poor wind conditions (81-84% bad winds), making sessions less reliable. Spring and early summer (May-June) have high wind swell dominance (90-93%) but suffer from onshore winds 75% of the time, leading to choppy surf. While Ozaki can work in winter, the autumn months—particularly August to October—deliver the best combo of swell size, ground swell contribution, and manageable winds.

October at Ozaki offers decent surf conditions with an average swell height of 1.6m and a solid 9.0s period, indicating well-formed, rideable waves. The most consistent swells come from the easterly quadrants (E, ESE, SE), which contribute the majority of waves in the 1-2.5m range—ideal for intermediate to advanced surfers. Winds are a mixed bag, with only 14% being ideal (likely light offshore or sideshore), while stronger NNE-NE winds (10-30kph+) dominate, potentially creating choppy or cross-shore conditions. The best sessions will come when easterly swells coincide with lighter winds from the west or south. Expect some bigger, clean days when ENE-NNE swells align with favorable winds, though these setups are less frequent. Pack your standard shortboard and maybe a step-up for the occasional overhead pulse.