Key Largo Temperatures: Averages by Month
The numbers here tell you how hot and cold the weather usually is at Key Largo, Florida during each month of the year.
The average high and low temperatures are listed below monthly and annually for the upper Florida Key island, in both degrees Fahrenheit and Celsius.
Maximums and minimums are only part of the temperature picture. To fill in the rest, there's information on how many days a month get above or below a given temperature.
To find out how often it rises over 70, 80 or 90 °F each month in Key Largo, scroll down farther. There are also monthly and yearly counts of days with cool weather.
The first set of high and low temperatures are averages for 2010 to 2019. Everything else here is based on 1991 to 2020 weather.
High °F | Low °F | High °C | Low °C | |
---|---|---|---|---|
76 | 62 | January | 24 | 17 |
78 | 65 | February | 25 | 19 |
79 | 67 | March | 26 | 19 |
83 | 72 | April | 28 | 22 |
85 | 75 | May | 30 | 24 |
88 | 78 | June | 31 | 26 |
89 | 79 | July | 32 | 26 |
90 | 79 | August | 32 | 26 |
88 | 78 | September | 31 | 26 |
85 | 76 | October | 30 | 24 |
81 | 70 | November | 27 | 21 |
79 | 68 | December | 26 | 20 |
84 | 73 | Year | 29 | 23 |
High °F | Low °F | High °C | Low °C | |
---|---|---|---|---|
75 | 64 | January | 24 | 18 |
77 | 65 | February | 25 | 19 |
79 | 67 | March | 26 | 20 |
83 | 72 | April | 28 | 22 |
86 | 75 | May | 30 | 24 |
88 | 78 | June | 31 | 26 |
89 | 80 | July | 32 | 26 |
90 | 79 | August | 32 | 26 |
88 | 78 | September | 31 | 26 |
85 | 75 | October | 29 | 24 |
81 | 70 | November | 27 | 21 |
77 | 67 | December | 25 | 19 |
83 | 73 | Year | 28 | 23 |
Days of Hot Weather in Key Largo
Key Largo enjoys pleasantly hot temperatures throughout most the year. Usually the daily highs are in the 80s Fahrenheit. Thermometers typically reach into the 90s on 49 days annually, scattered from April to October. It normally doesn't get any hotter than 100 °F (38 °C) at this Florida Keys island.
70 °F 21 °C |
80 °F 27 °C |
90 °F 32 °C | |
---|---|---|---|
January | 27 | 9 | 0 |
February | 26 | 10 | 0 |
March | 30 | 17 | 0 |
April | 30 | 24 | 0 |
May | 31 | 30 | 1 |
June | 30 | 30 | 6 |
July | 31 | 31 | 15 |
August | 31 | 31 | 18 |
September | 30 | 30 | 8 |
October | 31 | 29 | 2 |
November | 29 | 20 | 0 |
December | 28 | 11 | 0 |
Year | 354 | 271 | 49 |
How Often Key Largo Has Cool Temperatures
Chilly weather rarely happens at Key Largo. Even winter nights enjoy warm temperatures, with just five on average seeing lows of 50 °F or less. Thermometers normally drop to 40 °F (4 °C) for one night every two years, usually in January or February.
50 °F 10 °C |
60 °F 16 °C | |
---|---|---|
January | 3 | 11 |
February | 1 | 7 |
March | 0 | 5 |
April | 0 | 2 |
May | 0 | 0 |
June | 0 | 0 |
July | 0 | 0 |
August | 0 | 0 |
September | 0 | 0 |
October | 0 | 0 |
November | 0 | 3 |
December | 1 | 8 |
Year | 5 | 35 |
References
Jay Lawrimore, Ron Ray, Scott Applequist, Bryant Korzeniewski, Matthew Menne. 2016. Global Summary of the Month and Year, Version 1.0. NOAA National Centers for Environmental Information.
NOAA National Centers for Environmental Information (NCEI). Climate Normals.