Omaezaki - surf spot statistics

Omaezaki, Japan, offers surfable conditions year-round, but the best months for quality waves are typically from July through November. During this period, the percentage of ground swell increases significantly, peaking in August (28%) and remaining relatively high through September (26%) and October (21%). Ground swells tend to produce cleaner, more organized waves compared to wind swells, which dominate the rest of the year. The average swell size hovers around 1.2-1.3m during these months, providing consistent, rideable waves without being overwhelming. Wind conditions also improve slightly in the late summer and early fall, with better offshore or light wind days occurring more frequently—September and October stand out with good wind conditions around 22-23% of the time, compared to the rest of the year where bad winds dominate (77-85%). Winter and spring months (December to June) are less ideal due to the overwhelming prevalence of wind swells (82-90%) and poor wind conditions (81-86%). While the swell size is comparable (1.1-1.4m), the wind-affected waves and lack of ground swell make sessions less reliable. July marks the transition into better conditions, but August through October is the sweet spot for surfers seeking a balance of swell consistency, size, and manageable winds.