Coast, Key Biscayne, Miami-Dade County. We calculate high and low water here from an ocean tide model — accurate to about 5 cm on open coasts, considerably less in tidal flats and river mouths. This spot is officially monitored, but the responsible authority publishes no annual classification of the water quality.
Water temperature 30.3 °C — NOAA Geo-Polar Blended (5 km), measured 19/09/2026 08:00.
High tide at 17:43, Low tide at 23:37 (Local time at the spot).
Swimming spots in Key Biscayne · Miami-Dade County · Swimming spots in the United States · Atlantic Ocean · On the map