Peahi-Jaws - surf spot statistics

Peahi (Jaws) is a world-class big-wave surf spot, heavily dependent on powerful ground swells and favorable winds. The best conditions occur during the winter months, particularly from December to February, when ground swell dominates (71-82%) with mean swell sizes averaging 2.5-2.6m, providing the massive, clean waves Jaws is known for. Wind conditions, however, are challenging year-round, with only 23-30% of days offering good offshore or light winds in peak swell season. Winter months still have the best balance, despite high percentages of unfavorable winds (70-77%). From March onward, ground swell frequency declines, with wind swell becoming dominant by April, leading to smaller, less consistent waves (1.6-2.1m). Summer (June-August) sees the worst conditions, with minimal ground swell (10-12%), mostly wind chop, and poor wind patterns (81-83% bad winds). A slight improvement occurs in September-October as ground swell returns (28-51%), but wave size remains modest (1.6-1.9m). For expert surfers targeting Jaws' legendary barrels, the ideal window is December-February, when the largest, cleanest ground swells arrive, despite frequent onshore winds requiring patience for perfect days. The rest of the year is either too small or too wind-affected for Jaws to truly awaken.

July at Peahi (Jaws) is not the prime season for surf, with an average swell height of just 1.6m and a modest period of 8.4s. The best swells come from the ENE, E, and NE directions, with ENE delivering the most consistent energy for larger waves—42% of swells in the 1.5-2.5m range originate from this sector. However, ideal surfable conditions are limited, as only 19% of wind conditions are favorable (typically light offshore or sideshore winds). The dominant winds are trade-driven from the E and ENE, often blowing 20-30kph, which creates choppy, onshore conditions that can degrade wave quality. While there are occasional rideable days, especially when ENE swells combine with lighter winds, most of the month sees small to medium waves with less-than-ideal wind. Big-wave specialists will find little action here in July, but intermediate surfers might score smaller, manageable sessions when winds ease.