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.

In November, Omaezaki offers surfable conditions with an average swell height of 1.2m and a moderate period of 7.5s, providing decent energy for intermediate to advanced surfers. The dominant swell directions are ENE, E, and W, with the highest frequency of rideable waves (1-2m) coming from ENE and W, which tend to be the most consistent and powerful. WSW and SW swells also contribute, though less frequently. Wind conditions are favorable for surfing only 22% of the time, with lighter winds coming from SE to SSW, but stronger onshore winds from W and WNW can create choppy or blown-out conditions, especially when paired with larger swells. The best days will likely occur when ENE or W swells coincide with lighter winds from the south or east, offering cleaner faces. However, be cautious of stronger W/WNW winds, which are common and can degrade wave quality. Overall, November has potential for good sessions, but wind management is key—mornings may provide cleaner conditions before sea breezes pick up.