Vanimo - surf spot statistics

Vanimo, Papua New Guinea, offers consistent surf year-round, but the best conditions for surfers depend on swell quality, wind conditions, and wave size. The optimal months are typically from October to March, when ground swell dominates—especially in October, November, December, and January—with percentages between 44% and 52%. These months also provide the largest mean swell sizes, ranging from 0.9m to 1.3m, making them ideal for powerful, clean waves. Wind conditions improve slightly during these months, with good wind percentages peaking around 44-45% in November and December. The worst wind conditions are from June to September, when onshore winds prevail 63-71% of the time, often ruining wave quality. Swell consistency drops significantly from May to September, with higher wind swell dominance and occasional flat spells (up to 30% no swell in July). For surfers seeking quality waves, the dry season (October-March) is the prime window, combining reliable ground swells, manageable winds, and better wave heights, while the wet season (April-September) sees smaller, wind-affected swells and less favorable conditions.

June at Vanimo offers relatively small but rideable waves, with an average swell height of 0.7m and a decent period of 8.4s, providing some energy for shaping up. The swell direction is predominantly from the northeast (NE, 34.07%) and east (E, 7.36%), with most waves in the 0.5-1.5m range—ideal for intermediate surfers but potentially underwhelming for advanced riders seeking larger surf. Wind conditions are inconsistent for surfing, with only 37% of the time being favorable. The prevailing winds come from the east (E, ESE) at speeds between 10-30kph, which can create chop, particularly in the afternoons. Mornings may offer cleaner sessions when winds are lighter. Overall, June delivers mostly small to medium-sized waves with occasional clean conditions, best suited for those content with playful, less powerful surf.