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.

March at Wainui Beach offers consistent surf with an average swell height of 2.0m and a solid period of 10.6s, indicating powerful, well-spaced waves. The best swells come from the south and east quadrants, with SSE to SSW directions delivering the most rideable waves (1.5m–2.5m+) around 30% of the time. The ENE to SE swells also contribute decent waves but tend to be slightly smaller. Wind conditions are critical here, and only 19% of the time are they ideal (typically light offshore from the west or northwest). Unfortunately, onshore winds from the northeast to southeast are more common, creating choppy conditions, especially when stronger (20–30+ kph). For advanced surfers, the best sessions will be during south swells paired with lighter westerly winds—expect punchy, fast waves with good shape. However, the spot can handle larger days when the swell pushes overhead, though wind quality becomes even more decisive. Keep an eye on wind forecasts; the difference between epic and mediocre is often just a slight shift in direction.