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Key West Temperatures: Averages by Month. The numbers here tell you how hot and cold the weather usually is in Key West, Florida during each month of the year. The average high and low temperatures are listed below by month and annually for Key West, in both degrees Fahrenheit and Celsius.
Mar 5, 2013 · The hottest month of the year in Key West is August, with an average high of 89°F and low of 81°F. The cool season lasts for 3.0 months, from December 6 to March 5, with an average daily high temperature below 77°F. The coldest month of the year in Key West is January, with an average low of 66°F and high of 74°F.
Feb 10, 2024 · Key West, Florida - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data.
- In Key West, the average lowest temperatures are observed in January , with a high of 72.7°F and a low of 68.5°F .
- In Key West, Florida, during the entire year, the rain falls for 199.2 days and collects up to 31.61" of precipitation .
- The months with the coldest seawater in Key West are January and February , with an average ocean temperature of 71.2°F .
- The month with the lowest UV index in Key West is January , with an average maximum UV index of 5 .
- February is the most humid month in Key West, with an average relative humidity of 78% .
- March is the month with the least rainfall in Key West, Florida. Rain falls for 11.7 days and accumulates 0.67" of precipitation .
- On Sunday, March 12. 2023 , at 2:00 am, Daylight Saving Time starts in Key West, Florida, and the time zone changes from EST to EDT. Daylight Sa...
- April through October , with an average maximum UV index of 7 , are months with the highest UV index in Key West, Florida.
- The month with the longest days in Key West, Florida, is June , with an average of 13h and 36min of daylight .
Mar 3, 2024 · Key West experiences relatively consistent temperatures throughout the year, with average highs ranging from the upper 70s to low 90s Fahrenheit (25-33°C) and average lows in the 60s to 70s Fahrenheit (15-25°C).
< > Data: 1991 - 2021 Min. Temperature °C (°F), Max. Temperature °C (°F), Precipitation / Rainfall mm (in), Humidity, Rainy days. Data: 1999 - 2019: avg. Sun hours. The precipitation variance between the months with the lowest and highest levels of rainfall is 115 mm | 5 inch. Throughout the year, temperatures vary by 7.1 °C | 12.8 °F.
Dec 11, 2020 · Annually, Key West has an overall average high temperature of 82 degrees Fahrenheit (28 degrees Celsius) and an average low of 73 (23), making it an ideal destination year-round.
Average Temperature (°F) Minimum Temperature (°F) Rainfall (In.) Key West: 83.7: 78.9: 74.0: 40.44: Marathon: 84.5: 78.8: 73.1: 39.72
