CatchWindow fishing intelligence

Waikiki, HI Daily Water Report — October 6, 2026

Waikiki gets a clear go for water time today, with diving the standout at 8.8/10 and boating close behind at 8/10—but the afternoon deserves a little more respect than the gentle-looking morning. A steady south swell near 1.0 m at almost 12 seconds is carrying most of the 1.1–1.2 m sea state, while short wind waves remain a modest 0.2 m. NNE winds are generally light, 3.5–7.9 knots, which supports a workable day for boating, kayaking (7.1/10), and sailing (6.2/10). The catch: gusts are forecast to reach 21 knots around 4 PM, so the easygoing surface can turn more fussy later in the day. Current is running about 0.31 m/s toward 99 degrees; it is not a reason to write off the day, but it is a reason to keep route planning and return legs honest. For divers, the marine SST is a warm 27.2 C, with low chlorophyll reported at 0.07 mg/m³. That supports the strong diving score, though no underwater-visibility measurement is supplied. The best practical window is early through late morning, after the 6:30 AM low and before the afternoon gust potential. Cloud cover is limited at 31%, but rain is possible from 1 AM through 11 AM, so expect a damp start rather than assuming a spotless sunrise. Surfing rates a middling 6/10: there is usable period in the swell, but the regional model is capped without local orientation, bathymetry, or tide response. The 1:14 PM high of 0.64 m may be worth watching, but it is not a promise of a better session. Fishing is similarly moderate at 6.1/10, with the 8:26–10:26 AM solunar major period the more appealing daylight window; falling pressure is a tradeoff. Compared with the recent run, diving remains consistently excellent, while boating improves from yesterday’s 7.4/10. Surf stays level at 6/10, and sailing eases back from yesterday’s stronger 7.5/10. Wednesday stays light-wind with similar 1.1–1.2 m waves but a 71% rain chance; Thursday looks wetter and bumpier, with waves up to 1.5 m. The calmer-looking marine stretch returns toward Sunday and Monday. Best bet: get afloat or underwater in the morning, then be back with a dry bag packed before the afternoon gusts start acting like they own the place.