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Tides

King tides in American Samoa, 2027

The biggest predicted tide in American Samoa in 2027 reaches 7.5 ft above MLLW at APIA (Observatory), Upolu Island on Thursday, January 21, at 6:16 PM local time. Below are all of the year's king tide windows — the top 1% of predicted highs — for NOAA reference stations along the American Samoacoast. King tides are perigean spring tides: they arrive when a full or new moon lines up with the moon's closest approach to Earth, and they preview the flooding that sea level rise will make routine. Read how king tides work.

APIA (Observatory), Upolu Island

King tides (7.3 ft and above) at NOAA station 1778000. Full year: 2027 tide table.

  • Jan 20–23 — peaks 7.5 ft at 6:16 PM
  • Feb 18–20 — peaks 7.4 ft at 6:00 PM
  • Aug 30 — peaks 7.3 ft at 5:31 AM

NOAA CO-OPS harmonic predictions, datum MLLW, station local time. Actual water level can run higher with storms, onshore wind, and low pressure — king tide + storm is the flooding combination to watch. Predictions are for planning, not navigation.

Also available: American Samoa king tides 2026.