Aramoana - surf spot statistics

Aramoana, New Zealand, is a surf spot with consistent swell year-round, offering primarily ground swells with a mix of wind swells and almost no days without waves. The best months for surfing here are from March to August, when ground swell dominance is highest (70-75%), swell sizes are larger (mean 2.0-2.3m), and conditions are most favorable for surfers seeking powerful, clean waves. However, wind conditions are generally challenging throughout the year, with only 15-18% of days having good offshore or cross-shore winds—most days (82-85%) experience onshore or unfavorable winds. The worst months are December and January, when ground swells drop below 60%, wind swells increase, and wave size decreases slightly (1.8-1.9m). While winter months (May-August) provide the biggest and most consistent ground swells, surfers should be prepared for strong onshore winds and colder water. Late summer and early autumn (February-April) can be a reasonable compromise, offering slightly better wind odds while still maintaining decent swell size and quality. Advanced surfers will find the most opportunities in this window, but patience is required to score the rare days with clean conditions.

December at Aramoana delivers decent surf conditions with an average swell height of 1.8m and a solid period of 10.3s, ensuring well-formed and consistent waves. The most dominant swell directions are SW (27.8% of waves, with 11.77% in the 1-1.5m range and 9.39% in 1.5-2m) and ENE (13.8%, peaking at 5.98% for 1.5-2m). These directions, combined with the spot's orientation, typically produce clean, rideable waves. Wind conditions are less favorable, with only 17% of days offering ideal offshore or light cross-shore winds. The prevailing winds come from N-NNE (10-30kph, 15.6%), which can create onshore chop, while SW-WSW winds (30-50kph, 9.7%) bring stronger, disruptive gusts. For surfers, the best sessions will be on days with ENE or SW swells paired with lighter E or SE winds, but patience is needed as wind quality is inconsistent. Expect a mix of shoulder-high to overhead waves, with the potential for larger sets.