Honolulu (Oʻahu), HI tide times

Predictions: NOAA CO-OPS station 1612340 — heights relative to MLLW.

Harmonic prediction from the official tide authority. Very high accuracy under normal conditions; storm surge may shift actual water level. Not for navigation.

Marine-conditions data not available for this station. Wind, swell and water temperature ride along with Open-Meteo Marine; gauge-only stations (e.g. UK EA Flood) publish water level only.

Predictions: NOAA CO-OPS station 1612340 — heights relative to MLLW. · Not for navigation.

The angler tradition for major/minor fishing windows: major ≈3-hour windows around moon transit and opposition; minor ≈2-hour windows around moonrise and moonset. Times are Pacific/Honolulu local. Folk tradition, not a scientific forecast.

Next spring tide on Sat 16 May (range 0.9m / 2.9ft). Next neap on Tue 26 May.

Spring tides cluster around new and full moons (biggest swings). Neap tides land on quarter moons (smallest swings). See the spring tide and neap tide glossary entries for the why.

Honolulu has one of the smallest tide ranges of any major US harbour — mean range about 0.5 metres. The pattern is mixed semidiurnal, leaning diurnal: most days show one clear high and one clear low, with a smaller secondary cycle that often barely registers. That makes the signal subtle but the timing matters for anyone snorkelling at Hanauma Bay, paddling outside Ala Moana, or watching the reefs at Waikīkī. The lowest tides of the month — around new and full moons — can pull water off the inner reef enough to expose limu beds and tide pools that stay covered most days. Pacific swell from the north and west can push water levels above predicted any time of year, and the trade-wind setup against the southern shore lifts the gauge a few centimetres on a steady afternoon. Predictions come from NOAA CO-OPS station 1612340 in Honolulu Harbor — harmonic predictions calibrated on the local gauge record. Tsunami events, when they happen, completely override the tidal signal; NOAA's Pacific Tsunami Warning Center is the authoritative source for those.