Ataka - surf spot statistics

Ataka, Japan, is primarily a windswell-dominated surf spot, with ground swells playing a minimal role throughout the year. The best months for surfers are typically during the winter season, from November to February, when swell activity is highest and wave size is most consistent. November stands out with 90% wind swell and 2% ground swell, along with slightly better wind conditions (22% good winds) compared to other months, making it a solid choice. December and January also offer strong conditions, with mean swell sizes reaching 2.0m and 2.1m respectively, though wind conditions are less favorable (only 17-19% good winds). February follows closely with a 1.8m mean swell size, maintaining decent surf potential despite similar wind challenges. Outside winter, surf quality drops significantly: from March to October, wave size diminishes (1.3m in March down to 0.5m in June/July), and wind conditions remain poor (over 80% bad winds). Swell consistency also weakens, with increasing no-swell days, particularly from May to September. For experienced surfers seeking the best balance of swell and wind, November is the top pick, while December through February provide the most reliable waves, though with tougher wind conditions. The rest of the year is generally subpar, with small, inconsistent swells and unfavorable winds.

May at Ataka offers small to moderate surf conditions, averaging 0.7m with a 5.4s period, making it best suited for beginners or longboarders. The swell is predominantly from the WNW, NW, and NNW, with 60% of waves in the 0.5–1.5m range, providing consistent but soft waves. Larger swells (1.5m+) are rare (only ~5% of the time). Wind conditions are variable, with ideal offshore winds (NE–E) occurring just 16% of the time. The most common winds are SSE–S (10–30kph), which can create choppy conditions, though lighter winds (<20kph) prevail in other directions. Expect small, mellow surf with occasional clean sessions when winds align. Not ideal for high-performance surfing but decent for relaxed sessions.