WHEN.SURF FORECAST Oahu North Shore

A very low tide near dawn may sharpen the small, short-period NNE surf, with occasional chest-high sets from a more energetic but highly oblique northeast pulse. Northeasterly wind and numerous showers keep the surface choppy. Expect the better size toward the Turtle Bay end, but rain and mixed wind sea limit quality.

The northeast swell becomes a little more organized through midday, producing stomach-high common surf and occasional shoulder-high sets at favorable exposures. Its NNE angle remains inefficient on most North Shore reefs, while increasing onshore-side wind and numerous showers add bump. The rising tide toward midafternoon can soften the smaller waves.

A 13-second northeast component builds into the afternoon and can produce occasional head-high sets, especially farther east toward Turtle Bay. Common surf remains chest-high or smaller between those pulses. Northerly-leaning wind stays mildly onshore with persistent rain showers, so conditions remain bumpy and unsettled despite the added swell.

North-northeast mid-period surf holds around stomach-high through the morning, with somewhat larger pulses at exposed reefs. A low tide shortly after dawn can make the surf more abrupt and shallow. Winds ease substantially as Fausto passes north, but ongoing showers and mixed 9-second energy leave a textured, inconsistent surface.

The northeast energy eases through the afternoon into mostly waist-high to stomach-high surf, with brief larger wind-sea pulses. Light west winds may allow short cleaner intervals, particularly around the midafternoon high tide, but widespread showers remain likely. The shrinking, short-period swell will be less reliable as evening approaches.

North Shore surf drops to knee-high leftovers, with only occasional thigh-high pulses at the most receptive inside reefs. The very low morning tide may briefly add shape but also leaves shallow conditions. Easterly winds return and add texture, while showers become more scattered as the tropical disturbance moves away.

Small, mixed northeast windswell supplies mainly knee- to thigh-high surf, with little meaningful groundswell support. Easterly wind freshens during the afternoon, making the already short-period surf more textured. The afternoon high tide further reduces the limited shape at many reefs, and only scattered showers are expected.