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 July, Ozaki offers average surf conditions with a typical swell height of 1.5m and a decent period of 8.6s, producing moderately clean and rideable waves. The dominant swell directions are from the south to southeast, with the most consistent waves arriving from the ESE and SSE, often in the 1-2.5m range. However, there's a notable portion of swells from the SSW and SW, which can bring larger waves (1.5-2.5m+) with better power but may also be accompanied by less favorable winds. Speaking of wind, only 29% of the time are conditions ideal, usually when light to moderate easterlies or variable breezes prevail. Stronger southwesterlies (SW-WSW) can create onshore chop, particularly in the afternoons. Overall, July is a mixed month—expect some good sessions when winds align, but be prepared for variable conditions and occasional wind-affected surf. Mid-sized days are more common, with larger swells being less frequent but offering the best potential for advanced surfers when clean.