Kitaizumi - surf spot statistics

Kitaizumi in Japan offers varying surf conditions throughout the year, with distinct seasonal patterns influencing swell and wind quality. The best months for surfers generally align with higher ground swell percentages, manageable wind conditions, and consistent wave size. From January to March, ground swells dominate (59% in January, 55% in February, 46% in March) with mean swell sizes around 1.4-1.6m, offering reliable wave energy. However, wind conditions are less favorable, with bad winds prevailing 72% of the time, which can create choppy surfaces. The mid-year months (April to August) see a shift toward wind swells (peaking at 88% in June) and smaller average wave sizes (1.3-1.6m), making conditions less ideal for advanced surfers seeking clean, powerful waves. While summer months like July and August bring slightly better wind stats (33% good winds), the prevalence of wind swells often results in weaker, less organized waves. Autumn (September to November) marks a transitional period, with ground swells increasing again (28-40%) and mean swell sizes holding steady at 1.4-1.6m. November stands out with 35% good wind conditions—the highest of the year—offering a better balance between swell quality and offshore winds. December sees a return to mixed ground and wind swells (51%/45%) but retains smaller waves (1.3m) and challenging winds (69% bad). Overall, the prime window for surfing at Kitaizumi is late autumn (November), when ground swells remain decent, wind conditions improve slightly, and wave size is consistent. Winter (January-March) provides powerful ground swells but suffers from poor winds, while summer months are dominated by weaker wind swells. Experienced surfers may prioritize winter for its raw swell energy, but November offers the most balanced conditions.

March at Kitaizumi offers fairly consistent surfing conditions with an average swell height of 1.6m and a decent period of 10.0s, ensuring relatively clean and well-formed waves. The majority of swells come from the NE, ENE, and E directions, which produce the best wave heights (1-2.5m) and account for the most surfable days. Smaller percentages of SSE and S swells can also provide rideable waves, though they are less frequent. Wind conditions are optimal for surfing only 28% of the time, with the most favorable winds typically being light offshore or cross-offshore from the west or northwest. However, stronger winds from the WNW and NW directions (10-30+ kph) are common and can create choppy conditions. Overall, March delivers a mix of surfable days, with the best sessions likely when NE/ENE swells coincide with lighter winds, offering clean, head-high waves for experienced surfers.