CatchWindow fishing intelligence

Kahuku Point (NOAA HAI1112_1) Daily Water Report — October 5, 2026

Kahuku Point is a qualified go for diving and sailing, a workable day for fishing and boating, and a more guarded proposition for kayaks. The water is warm at 27°C, with a modest +0.5°C SST anomaly, while the marine forecast holds seas around 1.4–1.6 m. That is not flat-water territory, but it is manageable for appropriately equipped crews who respect the short-period texture: 0.66 m wind waves at just 3.15 seconds can make the ride busier than the headline wave height suggests. The best all-around daylight window is early, from dawn through roughly mid-morning. Winds are forecast in the 10-knot neighborhood from the ENE before gusts build toward a 27.4-knot maximum around noon. Divers get the day’s strongest activity score at 8.6/10, helped by warm water and available clarity inputs, though surface entry and exit still deserve attention in the mixed swell and wind chop. The 0.96 m swell from 73° at 6.4 seconds is modest rather than long-period and powerful, but it will still matter around exposed shorelines. Anglers have a decent 6.5/10 setup, with the 07:35–09:35 solunar major period lining up neatly with the calmer early part of the day. A second major period runs 19:35–21:35, after sunset, but no tide data are available to refine either window. The ocean is notably low in chlorophyll at 0.07 mg/m³—blue-water, low-productivity conditions—but that is an ocean-color measure, not a fish forecast. Sailors have the best wind-driven case at 7.4/10, provided crews are comfortable managing a wide gust spread. Boaters rate 6.2/10; paddlers, at 4.9/10, should treat the gusts, chop, and 0.28 m/s current toward 31° as a reason to choose conservative routes and timing. Rain is most likely from 14:00 to 17:00, with pressure falling through the day. Atmospheric visibility is near 9 km, though that says nothing about underwater visibility. The next few days bring lighter winds through Thursday, but rain chances rise and seas build to 1.5–1.9 m Friday and Saturday. Best bet: make an early-morning dive or sail before the noon gusts turn the ocean from cooperative to conversational.