WHEN.SURF FORECAST Oahu North Shore

Small early conditions with mostly knee to thigh surf and a few waist-high lines at the better reefs. A modest northwest pulse is still trying to fill while fresh trade wind sideshore texture is already in place. The dropping tide toward the 8:34a low helps little insiders stay a touch more rideable.

Trade wind chop takes over through mid-morning as the tide bottoms out and the new northwest energy remains modest. Most spots stay knee to thigh high, with occasional waist-high runners at the better exposures. Plenty of lump from the northeast wind-sea keeps it pretty bumpy despite a few improving sets.

A little more northwest pulse starts to show after lunch, so the better peaks should see more frequent waist-high surf with stray stomach-high sets. Fresh easterly trades keep a strong sideshore texture in place, and the rising tide through the afternoon will soften some of the smaller waves.

Late afternoon has the clearest sign of the small northwest bump, with waist-high surf becoming more common and occasional stomach-high sets at the better reefs. Trades stay brisk from the east-northeast, so surfaces remain ruffled. The push toward the 4:53p high tide may make the softer spots feel a bit full.

Sunday morning looks a notch better, with a more defined northwest pulse in the water. Expect mostly waist to stomach-high surf, plus occasional chest-high sets at the standout peaks, especially around the morning low tide. Easterly trades still add cross-texture, but the faces should stay more organized than today.

The northwest swell should be more established by late morning, bringing stomach-high surf at average spots and occasional shoulder-high sets at the better reefs. Conditions stay cross-textured under moderate easterly trades, not pristine but fairly lined up. The morning low tide keeps the earlier part of this window a little punchier.

Sunday afternoon stays in the fun zone with stomach-high surf common and occasional head-high sets where the swell lines focus best. Easterly trades remain noticeable enough to keep the surface ruffled, and the rising tide toward 5:33p may mellow some sections later in the window. Still, plenty of playful energy around.

Monday morning should have cleaner shape as the trades ease and veer more easterly, with light to moderate offshore help mixed with a little side-texture. Surf looks around waist to stomach high, with occasional chest-high sets. The 9:20a low tide should sharpen things up at the smaller reefs for a while.

Monday afternoon stays fairly clean by North Shore standards as winds continue easing and turning more favorable. Expect mostly stomach-high surf with occasional shoulder-high sets, with a few better lines possibly showing late as new west-northwest energy starts to creep in. The tide fills through the evening and may soften slower spots.