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.

March at Mangamanu offers decent surf conditions with an average swell height of 1.5m and a solid period of 10.5s, providing well-spaced, clean waves suitable for intermediate to advanced surfers. The most dominant swell directions are from the south (S, SSE, SE), contributing the highest percentage of rideable waves, particularly in the 1-2.5m range. These swells frequently produce quality waves, especially when combined with favorable wind conditions. However, the wind is only ideal 28% of the time, with lighter offshore or side-offshore winds (E, ENE, NE) occurring occasionally. Stronger onshore winds from the N to SW can degrade conditions, particularly when exceeding 20kph. Overall, March is a moderate month for surfing here, offering a mix of smaller, playful days and occasional bigger swells, though wind consistency is a limiting factor. Patience and timing are key—check forecasts for those cleaner, south-swell days with lighter easterly winds.