Big Coppitt Key Water Temperature

(Today) 2025

29.3°C / 84.7°F

The water will feel unpleasantly warm (stifling). May be a little too warm for any kind of activity, particularly if sunny.

Current weather

30°C / 86°F
(few clouds)
Partly cloudy
Wind
13 mph
Humidity
70%

The measurements for the water temperature in Big Coppitt Key, 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.

*Live data may vary from satellite readings for a number of reasons. These include local factors, depth of smapling and time of day.

Water temp by month

Monthly average max / min water temperatures

The graph below shows the range of monthly Big Coppitt Key water temperature derived from many years of historical sea surface temperature data.

Big Coppitt Key average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in Big Coppitt Key
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 19.8 19.5 20.3 23.5 24.8 27.1 28.3 29.3 28.7 26.3 23.8 22.2
Max °C 23.8 24.1 25.6 27.3 29.3 29.9 31.1 31.7 30.8 30.2 27.9 25
Min °F 69.2 68.9 70.6 75.8 78.4 81.9 84.1 85.7 84.5 80.9 76.4 73.1
Max °F 73.2 73.5 75.9 79.6 82.9 84.7 86.9 88.1 86.6 84.8 80.5 75.9

The warmest water temperature is in August with an average around 86.9°F / 30.5°C. The coldest month is January with an average water temperature of 71.2°F / 21.8°C.

7 day tide forecast for Big Coppitt Key

SunMonTueWedThuFriSat
  • Low 2:02am
    (-0.02m)
  • High 6:22am
    (0.26m)
  • Low 1:01pm
    (0.05m)
  • High 5:26pm
    (0.46m)
  • Low 2:45am
    (-0.02m)
  • High 7:04am
    (0.28m)
  • Low 2:01pm
    (0.05m)
  • High 6:18pm
    (0.44m)
  • Low 3:29am
    (-0m)
  • High 7:46am
    (0.31m)
  • Low 3:13pm
    (0.05m)
  • High 7:16pm
    (0.4m)
  • Low 4:14am
    (0.01m)
  • High 8:28am
    (0.34m)
  • Low 4:35pm
    (0.04m)
  • High 8:25pm
    (0.35m)
  • Low 5:01am
    (0.03m)
  • High 9:11am
    (0.38m)
  • Low 5:55pm
    (0.02m)
  • High 9:48pm
    (0.3m)
  • Low 5:48am
    (0.04m)
  • High 9:57am
    (0.41m)
  • Low 7:08pm
    (0m)
  • High 11:19pm
    (0.27m)
  • Low 6:36am
    (0.05m)
  • High 10:47am
    (0.45m)
  • Low 8:12pm
    (-0.02m)
7 day tide times for Big Coppitt Key

*These tide times are estimates based on the nearest accurate location (Big Coppitt Key, northeast side, Waltz Key Basin, 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.