North Key Largo Water Temperature

(Today) 2025

26.3°C / 79.3°F

The water will feel hot. Water temperature similar to a heated indoor swimming pool.

*Live data from Middle Key, FL: 25.7°C / 78.3°F

Current weather

24°C / 76°F
(clear sky)
Partly cloudy
Wind
17 mph
Humidity
67%

The measurements for the water temperature in North Key Largo, 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 North Key Largo water temperature derived from many years of historical sea surface temperature data.

North Key Largo average maximum / minimum water temperatures
Maximum and minimum monthly sea temperatures in North Key Largo
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Min °C 20.5 20 20.7 23.5 24.8 27.3 28.5 29.5 28.9 26.3 23.7 22.6
Max °C 24 24.2 25.8 27.3 29.4 29.7 30.7 31.4 30.5 30.1 27.8 24.9
Min °F 70.3 69.7 71.3 75.8 78.5 82.1 84.2 85.8 84.7 80.9 76.3 73.6
Max °F 73.8 73.9 76.4 79.6 83.1 84.5 86.4 87.7 86.3 84.7 80.4 75.9

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 North Key Largo

ThuFriSatSunMonTueWed
  • High 2:53am
    (0.25m)
  • Low 9:26am
    (0.01m)
  • High 3:02pm
    (0.23m)
  • Low 9:48pm
    (-0.04m)
  • High 3:48am
    (0.24m)
  • Low 10:25am
    (0.03m)
  • High 3:59pm
    (0.22m)
  • Low 10:49pm
    (-0.01m)
  • High 4:45am
    (0.22m)
  • Low 11:28am
    (0.04m)
  • High 5:00pm
    (0.2m)
  • Low 11:54pm
    (0.01m)
  • High 5:44am
    (0.21m)
  • Low 12:33pm
    (0.05m)
  • High 6:05pm
    (0.2m)
  • Low 12:59am
    (0.03m)
  • High 6:44am
    (0.2m)
  • Low 1:37pm
    (0.05m)
  • High 7:12pm
    (0.19m)
  • Low 2:02am
    (0.04m)
  • High 7:42am
    (0.2m)
  • Low 2:34pm
    (0.04m)
  • High 8:14pm
    (0.2m)
  • Low 2:58am
    (0.05m)
  • High 8:35am
    (0.2m)
  • Low 3:24pm
    (0.03m)
  • High 9:08pm
    (0.2m)
7 day tide times for North Key Largo

*These tide times are estimates based on the nearest accurate location (Cormorant Point, Key Largo, Card Sound, 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.