Honolulu (Oʻahu), HI tide times

The hero block above shows the next high tide at Honolulu Harbor in local Hawaiian time. The 7-day table breaks out all the daily extremes — note that on diurnal-leaning days, the secondary high or low may be only a few centimetres different from a flat plateau.

Hawaiʻi sits in the deep central Pacific far from continental shelves. The astronomical tide forcing is small here because the islands aren't on a resonant tidal basin. Mean range is about 0.5 m at Honolulu, and the daily pattern leans diurnal — often just one meaningful high and one meaningful low. Bigger swells and storm setup from the open ocean can dwarf the astronomical signal.

Lower tides expose more reef and shorten the swim out, but at Hanauma the inner-reef snorkel is rewarding across most tides. The biggest lows happen around new and full moons. The 7-day table on this page flags each day's lowest predicted tide; cross-reference Hanauma Bay Nature Preserve's hours and entry rules separately.

NOAA CO-OPS station 1612340, Honolulu Harbor. NOAA's harmonic predictions for Hawaiian stations are accurate but the small absolute range means even small deviations look proportionally larger than they would on the East Coast. Wind, swell, and rainfall can each shift water level by a few centimetres.

No. Use NOAA's official chart and tide products plus US Coast Guard notices for piloting in Honolulu Harbor. For tsunami threats — which override normal tidal predictions completely — the Pacific Tsunami Warning Center is the authoritative real-time source.