CatchWindow fishing intelligence

Nawiliwili, HI Daily Water Report — August 27, 2026

A solid day on the water, but choose your activity wisely. The surfing and diving windows are excellent, while small-craft paddlers will want to sit this one out. For surfers, this is the standout session in weeks. A clean 1.2-meter south swell running at a long 12.6 seconds is wrapping into the coast with minimal interference. Northeast trades are blowing around 9 knots, which is enough to groom the faces without turning them into a washing machine. The wave height sits at a consistent 1.7 meters, and the best bet is to paddle out around the minor solunar period at 5:34 AM, when the morning light matches the dawn glass-off. By midday, gusts are forecast to spike near 25 knots, so the window is early and fleeting for peak shape. Divers and snorkelers are also in for a treat. The water temperature is a warm 27.1°C, nearly a full degree above average, and the surface is calmest near 7:00 AM at 1.6 meters. While the wind will freshen, the early-morning window offers the best clarity for nearshore reefs. That low chlorophyll reading of 0.06 mg/m3 confirms those classic blue-water conditions, though underwater visibility is a separate matter from the atmospheric visibility of 12 kilometers reported above your head. Anglers face a mixed bag. The score of 6.9 reflects decent solunar timing with a major period around 11:00 AM, but the building wind and unstable pressure offer no strong feeding trigger. Boaters will find the northeast current pushing at 0.7 m/s toward due north, adding drift to any anchored setup. Kayakers should stay off the water—the 1.7-meter swell and gusty afternoon breeze push that suitability score to a low 3.9. Sailing is the wild card. With steady trades holding between 7 and 11 knots and no rain in the forecast, the 8.3 score is fair, but the afternoon gusts demand a reefed main. The next few days trend wetter and choppier: by August 30, wave heights climb into the 1.8- to 2.0-meter range with a 78% chance of rain, and that pattern persists into early September. Best bet: catch the surf at dawn before the trades roar, then let the south swell do the talking.