Tide Table Port Moresby — 2026

📘 About Port Moresby Tide Forecast

In the southern hemisphere, the coastal area of Port Moresby (Papua New Guinea) is positioned at coordinates -9.48° S and 147.14° E. Its tidal pattern is mixed semi-diurnal (unequal tidal heights across the day), with a mean tidal range of 1.7m and spring tides reaching up to 1.9m. The broad tidal flats exposed each cycle attract flocks of migratory shorebirds feeding on invertebrates uncovered by the ebb. Benthic species in mixed tide intertidal zones adapt to variable aerial exposure durations between primary and secondary high tides. The coast here is influenced by large-scale ocean currents that modulate water temperature throughout the year. The 2026 tidal bulletin for Port Moresby delivers a thorough schedule of sea level swings with hourly marks for the entire year. In October, Port Moresby is in its spring season, a key period for water sports, fishing, diving, and coastal navigation. All tide predictions are computed from harmonic constants validated for this coastal station, with accuracy within ±15 minutes for most conditions.