Kealia Beach - surf spot statistics

Kealia Beach experiences consistent swell year-round, with primarily ground swell dominating in winter and more wind swell in summer. The best months for surfers are from November to February, when ground swell makes up 51-70% of the waves, mean swell sizes range from 2.1m to 2.2m, and wind conditions are relatively less unfavorable (though still mostly onshore). December stands out with the largest average swell size (2.2m) and decent ground swell influence (60%), despite only 15% of days having good winds. January follows closely with 70% ground swell and 2.1m waves, though wind conditions are poor 77% of the time. The summer months (May-September) see smaller swells (1.6-1.7m), dominated by wind swell (59-72%), and nearly constant bad winds (88-94%). While surfable waves are always present, the ideal balance of size, ground swell purity, and marginally better wind odds occurs in winter, particularly December-January, despite the prevalent onshore winds requiring patience for cleaner sessions. Spring and fall offer transitional conditions, with October-November providing a slight bump in ground swell and size compared to summer.

October at Kealia Beach offers consistent surf with an average swell height of 1.8m and a solid period of 10.9s, providing good energy for intermediate to advanced riders. The most dominant swell directions are ENE, E, and NNW, with the largest waves (1.5m+) frequently arriving from these angles—particularly NNW, which contributes 11.85% of waves in the 1.5-2m range and 5.11% in the 2-2.5m range. Smaller but still rideable swells come from NE and NNE, though ENE swells tend to be the cleanest and most powerful. Wind conditions are less favorable, with only 10% of days offering ideal offshore or light cross-shore winds. The prevailing ENE and NE winds often blow at 10-30kph (14.4% and 7.93% frequency, respectively), which can create choppy or semi-choppy conditions. However, when winds align from the west or northwest (which is rare but possible), the surf cleans up significantly. Overall, October delivers decent waves with size and power, but wind quality is hit-or-miss. Expect a mix of clean sessions and wind-affected days, with the best opportunities coming during early mornings before the trade winds pick up.