CatchWindow fishing intelligence

Honolulu, HI Daily Water Report — October 4, 2026

Honolulu gets a qualified green light today: diving is the standout at 8.9/10, while sailing and boating are workable with an eye on building afternoon gusts. The water is not flat, but it is reasonably orderly—waves hold near 1.1 to 1.2 m, with the day’s minimum around 1.08 m near 8 AM. Marine SST is a comfortable 27.5 C, essentially average for the season, and the available clarity inputs support the strong diving score. That score is about conditions, not a promise of easy entries or universal site safety. Early morning is the cleanest all-purpose window. Winds are lighter before the ENE flow settles in, and the 11:34 AM high tide follows a 3:44 AM low, giving shoreline users a rising-water morning. Anglers have a useful solunar major period from 6:38 to 8:38 AM; fishing rates 6.5/10, helped by that timing, rising pressure, and manageable wind, though it is not a banner-day setup. The low tide at 7:12 PM coincides closely with the evening major period beginning at 6:38 PM, a potentially useful shoreline window but one that demands attention to exposed footing and changing water depth. By afternoon, the tradeoff is gustiness. Representative wind is 11 knots from the ENE, but gusts may reach 28 knots around 4 PM, while a light rain window is forecast from noon through 6 PM. Sailing still scores 7.4/10, but the gust spread makes it a day for alert trimming rather than casual complacency. Boating earns 6.8/10; kayaking, 5.8/10, is the activity most penalized by the wind-and-chop combination. Atmospheric visibility is only about 5.8 km, which matters for navigation and horizon-finding, not as a measure of underwater visibility. Compared with yesterday’s lighter 5.6-knot winds, today is less friendly to paddlers and boats, though boating remains respectable. Pressure is rising near 1016 hPa, and the ocean current is modest at roughly 0.08 m/s toward the northeast. The next few days keep seas near 1.0–1.2 m through Wednesday, with lighter peak winds Tuesday and Wednesday; wave heights then rise to 1.3–1.5 m late week alongside higher rain chances. Best bet: make the morning tide and 6:38–8:38 AM solunar window your water time, before the afternoon gusts start throwing their elbows.