CatchWindow fishing intelligence

Mokuoloe, HI Daily Water Report — August 28, 2026

Today’s Mokuoloe water report leans into diving and sailing as the standout plays, with a full moon overhead, clear skies, and a steady tradewind regime that keeps the ocean lively but not unruly. This is a good day to be on or in the water, provided you respect the midday gusts and the cooling bite of the northeast swell. The diving score of 8.6/10 is the highest of the bunch, and it’s easy to see why. Water temperature sits at 26.6°C—almost a full degree above the seasonal average—and the representative wind of 9 knots from the east-northeast won’t churn things up too badly. The wave height hangs around 1.4 meters with a short 6-second period, which isn’t ideal for flat calm conditions, but the shallow chop is manageable, especially if you aim for the low tide window around 8:13 this morning. That low tide concentrates marine life in deeper channels and gives divers a clearer view of the reef structure. The chlorophyll reading of 0.07 mg/m³ confirms a classic blue-water, low-productivity day, meaning visibility should be good, though do not confuse that with a guarantee—atmospheric visibility of 44 km does not translate to underwater clarity. Sailing scores an 8.4, and with winds ranging from 7.6 to 11.7 knots and gusting to 19 by early afternoon, you’ve got consistent power without the white-knuckle ride. The cleanest window is the late morning, before the strongest gusts hit around 2 p.m. For boaters, the 6.8 score reflects the same wind and 1.4-meter seas; it’s fine for offshore runs but not a glassy day for smaller craft. Surfers get a solid 7.6 from the 1.08-meter swell out of 70 degrees—short-period, fun-size waves best caught on a high tide around 3:04 p.m. Kayaking lags at 5.1, mainly due to the wind waves and current. Compared to yesterday, diving ticked up slightly from 8.5, fishing held steady in the 6.4-6.5 range, and sailing dipped a bit from 8.9 as the wind became more gusty. The full moon means stronger tidal swings and solunar activity from 11:41 to 1:41 p.m.—worth noting for fishing, though the score remains moderate. Looking ahead, the marine forecast shows waves building to 1.7-1.8 meters over the weekend, with precipitation chances climbing above 80% starting tomorrow. The trades will strengthen, and the ocean will get a bit more restless. For today, get the dive gear ready and the sails up early—tomorrow’s weather is already knocking at the door.