WHEN.SURF FORECAST Oahu South Shore

Small thigh-high surf with occasional waist-high sets at the better reefs early, helped a bit by the dropping morning tide. East to east-southeast trades are already up enough for texture, so it looks more playful than pristine. A few longer-period pulses may start mixing in toward the end of the window.

Mostly thigh-high surf with a few waist-high sets, and the late-morning negative low tide should keep the better reefs somewhat lively despite the small scale. East-southeast winds trend more sideshore through midday and add chop. Clouds increase, but any showers still look brief and spotty.

Small surf continues in the knee to thigh range at many spots, with occasional waist-high sets where the longer-period south-southwest pulse starts to show. The filling afternoon tide toward evening high will soften weaker waves. Trades ease a touch but still leave a textured surface under mostly cloudy skies.

A small but slightly better long-period south pulse should keep thigh-high surf going with occasional waist to near stomach-high sets at the better reefs, especially around the late-morning low tide. Winds trend from light easterly toward more southeast by midday, so surface quality stays mixed rather than clean. Clouds and a few showers linger.

Small long-period lines continue Monday afternoon, generally thigh-high with occasional waist-high sets, but the rising tide will make weaker spots softer through the day. A southeast wind turns lightly onshore at times and adds texture. Mostly cloudy skies and a few passing showers keep it a mellow, mixed-bag session.