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.

December at Peahi-Jaws offers powerful and challenging conditions, primarily driven by large swells from the north and northwest. The average swell height (2.6m) and period (12.4s) indicate consistent, well-spaced waves, often producing heavy, barreling breaks—ideal for experienced big-wave surfers. The swell direction is predominantly NW (18.94% in the 2-2.5m range and 1.41% over 2.5m) and NNW (12.38% in 2-2.5m, 0.78% over 2.5m), with ENE and E swells contributing occasionally. Smaller swells (below 1.5m) are rare, so expect mostly overhead to double-overhead waves. Wind conditions are variable, with only 26% being ideal (light offshore or cross-offshore). The most common winds are E-NE (10-30kph), which can be onshore and create choppy conditions, while strong E winds (9.73% at 30-40kph) may worsen surf quality. Cleaner sessions occur during lighter NW or NNW winds. Overall, December delivers epic but demanding surf, requiring skill and caution due to the size, power, and occasional wind challenges.