Mangamanu - surf spot statistics

Mangamanu in New Zealand offers surfable conditions year-round, with seasonal variations in swell quality and wind patterns. The best months for surfing are typically from March to August, when ground swells dominate (51% to 59%) and mean swell sizes range from 1.5m to 1.7m. During this period, ground swell consistency peaks, particularly in May (59%) with June and July delivering the largest waves (1.7m). Wind conditions improve slightly in the autumn and winter months (May to July), with good wind days averaging 34%, still outnumbered by poor winds but less severe than summer. The summer months (December to February) see a higher proportion of wind swells (58% to 69%) and smaller waves (1.2m to 1.4m), paired with the worst wind conditions (72% to 73% unfavorable). September marks a transition, with ground swells dropping below 50% but still offering decent wave heights (1.5m). While surfable, the shoulder seasons (September to November and late summer) present more mixed conditions, with weaker ground swells and persistent onshore winds. For the most consistent and powerful waves, target the mid-autumn to mid-winter window when ground swells are strongest and winds are marginally less disruptive.

August at Mangamanu delivers consistent surf with an average swell height of 1.6m and a solid period of 10.6s, producing well-formed, powerful waves. The dominant swell directions are S, SE, and E, with the highest frequency of rideable waves (1-2.5m) coming from the S (14-20% of the time) and SE (7-9% of the time). These swells are typically clean and organized, ideal for intermediate to advanced surfers. Wind conditions are favorable 32% of the time, with offshore or light winds most likely from the ENE to ESE, though stronger SW-WNW winds can create choppy conditions. Expect the best sessions when S/SE swells coincide with light ENE-E winds, offering clean, head-high to overhead waves. However, SW winds are prevalent (10-15% of days) and can ruin conditions, so timing is key. Overall, August provides reliable surf, but patience is needed to score the best days.