Key Biscayne Water Temperature
The water will feel hot. Water temperature similar to a heated indoor swimming pool.
The measurements for the water temperature in Key Biscayne, Florida are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.
Water temp by month
Monthly average max / min water temperatures
The graph below shows the range of monthly Key Biscayne water temperature derived from many years of historical sea surface temperature data.
The warmest water temperature is in August with an average around 86.7°F / 30.4°C. The coldest month is February with an average water temperature of 71.8°F / 22.1°C.
7 day tide forecast for Key Biscayne
*These tide times are estimates based on the nearest accurate location (Key Biscayne Yacht Club, Biscayne Bay, Florida) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.