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.

In March, Ozaki offers surfable conditions with an average swell height of 1.4m and a decent 8.0s period, providing enough energy for intermediate to advanced surfers. The most consistent swell directions are from the E to SSE, with ESE being particularly dominant, contributing to 9.96% of waves in the 0.5-1m range and 4.29% in the 1-1.5m range. Larger swells (1.5-2.5m) are less frequent but still present, mostly from NNE and S directions. Wind conditions are only favorable 17% of the time, with lighter winds (<20kph) from ESE, SE, and E being the most surf-friendly. However, stronger NNE and NW winds (20-50kph) are common and can create choppy or challenging conditions. For the best sessions, watch for ESE swells paired with light offshore or cross-shore winds. Expect variable consistency—moderate-sized, mid-period waves are typical, but larger days are rare.