The Island - surf spot statistics

The Island in New Zealand offers surfable waves year-round, with the best conditions typically spanning from March to August. During these months, ground swell dominates, peaking in May (59%), ensuring cleaner, more organized waves. The mean swell size also increases, reaching its highest point in June and July at 2.4m, providing powerful, consistent surf. Wind conditions remain challenging year-round, with bad winds prevailing over 75% of the time. However, the slightly better wind windows in February, May, and September (23% good winds) offer brief respites. Early autumn (March-May) is particularly favorable, balancing decent swell size (2.0-2.2m) and ground swell prevalence. Winter (June-August) delivers the biggest waves but comes with harsher winds. Late spring and summer (November-January) see weaker swells (1.7-1.8m) and higher wind swell influence, making sessions less predictable. Advanced surfers will find the strongest conditions in mid-winter, while those prioritizing slightly cleaner winds may prefer late summer or early autumn.

In April, The Island offers surfers consistent conditions with an average swell height of 2.1m and a solid period of 10.8s, indicating powerful and well-organized waves. The swell predominantly arrives from the south to southeast (SSE to SSW), making up the largest share of rideable conditions, particularly in the 1.5–2.5m range. These swells are clean and provide good shape, though larger sets over 2.5m occur occasionally, mainly from the S and SSW. Wind conditions are favorable 21% of the time, with lighter winds (0–20kph) from the ESE to SE being ideal for smooth faces. However, stronger northerly and westerly winds (20–50kph) can create choppy or onshore conditions, especially from the N, NW, and SSW. Overall, April delivers a mix of powerful, well-spaced swells with enough clean days for advanced surfers to score quality sessions, though wind variability means timing is key.