TODAY MAY28
TEMPERATURE86
HUMIDITY75
PRESSURE29.99
WIND COND.80 11.4
  • 8779Fri30%40%
  • 8779Sat40%30%
  • 8878Sun20%20%
  • 8778Mon30%40%
  • 8778Tue40%40%
daynightWeather update from Homestead Air Force Base at
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Key Largo Average Temperature

In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
January62°F76°F69°F1.2"
February60°F76°F67°F3.2"
March64°F78°F71°F5.1"
April65°F81°F73°F9.2"
May71°F84°F77°F11.5"
June74°F87°F80°F16.0"
July77°F89°F82°F11.4"
August78°F89°F83°F17.1"
September76°F88°F81°F11.8"
October75°F85°F79°F8.5"
November67°F81°F73°F2.7"
December63°F78°F70°F1.4"

Did you know?

  • The highest monthly average temperature in Key Largo for August is 83 degrees.
  • The lowest monthly average temperature in Key Largo for February is 67 degrees.
  • The most monthly precipitation in Key Largo occurs in August with 17.1 inches.
  • The air quality index in Key Largo is 18% better than the national average.
  • The pollution index in Key Largo is 754% worse than the national average.

Compare Key Largo, FL Weather To Other Cities

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      Key Largo air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexKey LargoFloridaNational
      Air quality index413550
      Pollution index43,296,20015,391,3445,066,862

      Key Largo air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality279
      Days with moderate air quality83
      Days w/ poor A.Q. for sensitive groups3
      Days with unhealthy air quality

      Key Largo air quality information

      PollutantTotal
      Arsenic0.060%
      Benzene0.510%
      Carbon Tetrachloride0.150%
      Lead0.330%
      Mercury0.090%

      Average monthly Key Largo temperature with heat index

      Key Largo monthly precipitation with daily maximum

      Key Largo monthly snow depth with daily maximum

      Key Largo monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      North Key Largo, FL1,0384118%
      Tavernier, FL2,1824118%
      Islamorada, Village of Islands, FL6,4814118%
      Key Largo, FL10,0244118%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Woodbury, NJ10,0245714%
      East Stroudsburg, PA10,0233922%
      George Mason, VA10,028492%
      Plymouth, IN10,012512%
      Bonham, TX10,040325550%
      Key Largo, FL10,0244118%
      Source: The Key Largo, FL weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.