Upper Grand Lagoon Water Temperature

(Today) 2024

21.6°C / 70.8°F

The water will feel tepid. Swimming will be tolerable without a wetsuit, although it will take a little getting used to. If you intend to stay in the water for a while a 3/2mm wetsuit will be ideal.

Current weather

27°C / 80°F
(clear sky)
Partly cloudy
Wind
14 mph
Humidity
63%

The measurements for the water temperature in Upper Grand Lagoon, 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 Upper Grand Lagoon water temperature derived from many years of historical sea surface temperature data.

Upper Grand Lagoon average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Upper Grand Lagoon
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 14.1 13.6 15.3 17.9 21 25.6 27.7 28.7 26.8 23.3 18.8 16.8
Max °C 19.1 18.8 20.1 23.5 27.2 29.7 30.8 30.8 29.7 28.4 25.1 20.6
Min °F 59.4 58.6 61.5 66.5 72.3 79.7 83.1 84.5 81.4 75.9 68.3 63.8
Max °F 64.4 63.8 66.3 72.1 78.5 83.8 86.2 86.6 84.3 81 74.6 67.6

The warmest water temperature is in August with an average around 85.5°F / 29.7°C. The coldest month is February with an average water temperature of 61.2°F / 16.2°C.