Serangan - surf spot statistics

Best Surf Season (December - February)

This is the peak window at Serangan, driven by the northwest monsoon. Consistent offshore winds from the west and northwest deliver clean, groomed conditions 60-64% of the time. While the dominant swell comes from the SSW and SW—not the ideal E-SSE direction—the offshore flow transforms these long-period Southern Ocean groundswells into smooth, rippable waves. Expect average wave heights around 1.6-1.7m with periods of 12-13s, offering fun to pumping surf day after day.

Fair Surf Season (March & November)

These months represent the transition between monsoons. March still sees moderate offshore wind (48% ideal) with powerful 13.3s swell, but the trade winds begin to creep in. November marks the return of the monsoon with 31% ideal wind, after months of onshore slop. Wave heights average 1.6m, and while the swell direction remains south-oriented, the improving wind quality makes these months solid secondary targets.

Low Surf Season (April - October)

The southeast trade winds dominate from April through October, blowing directly onshore from the E-ESE-SE quadrant. Ideal wind plummets to 19% in April and further down to 0-3% from May through August. Although swell energy peaks during these months—averaging 1.9-2.2m with long periods over 14s from the deep south—the constant onshore wind wrecks wave quality, creating lumpy, choppy, and difficult conditions. Only rare light-wind windows or early mornings offer any refuge. September and October see a slight uptick in wind quality (3-13%), but conditions remain marginal.

June: Dry Season Peak with Beastly Swell

June brings peak dry season conditions. Ideal wind is almost non-existent at 2%. The trade winds pin the sea surface, with ESE (58.8%) and SE (21.7%) dominating at moderate to fresh speeds. Swell rises to 2.1m with a 14.3s period, delivering heavy, long-period groundswell from SSW (41.1%) and S (30.9%). It’s a month for the experts only—when the wind miraculously drops, the waves are firing, but most days are a battle against the chop.