Wainui Beach - surf spot statistics

Wainui Beach in New Zealand offers consistent surf conditions year-round, with some months standing out as particularly favorable for surfers. The best time to surf here is generally from March to August, when ground swell dominates, wave heights are more substantial, and wind conditions, while still often challenging, show slight improvements compared to the rest of the year. March marks the beginning of the better swell season, with ground swell contributing 51% of the waves and an average swell size of 2.0 meters. This trend continues into April, May, and June, with ground swell peaking at 59% in May, accompanied by the year's highest mean swell size of 2.4 meters in June and July. Wind conditions remain predominantly unfavorable throughout the year, with good wind days hovering around 19-24%, but the slightly higher percentages in autumn and winter (April to August) provide marginally better opportunities. The worst months for surfing are typically November through February, when wind swell dominates (60-66%), ground swell drops significantly (33-42%), and wind conditions are at their poorest (only 19% good wind days). Despite these challenges, Wainui Beach rarely experiences flat spells, with virtually no days without swell. For surfers seeking quality waves, the autumn and winter months (March to August) are the prime window, offering larger, cleaner swells and slightly more manageable winds compared to the summer period.

June at Wainui Beach offers consistent surf with an average swell height of 2.4m and a solid 10.8s period, providing powerful, well-formed waves. The dominant swell directions are from the south (SSW, S, SSE), which contribute the largest and cleanest waves—particularly in the 1.5–2.5m range. These southerly swells account for the majority of rideable conditions, with SSW swells producing the highest percentage of waves over 2.5m (0.81%). Wind conditions are less favorable, with only 22% of days offering ideal offshore or light cross-shore winds. Strong onshore winds from the north and west are common, particularly in the 20–40kph range, which can degrade wave quality. Surfers should target days with southerly swells and lighter winds, typically from the east or northeast, for the best sessions. Though bigger swells are present, the wind reliability makes June a mixed month—requiring patience for optimal conditions.