It's not normal for the temperature to rise above 100 °F (38 °C) in Key West. But it does climb into the 90s for much of July and August. Even during winter months, Key West usually has many days of 80-degree weather. Number of Warm Nights a Month Nights at Key West are consistently warm, staying above 50 °F nearly throughout the year.
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. 1 With average daytime temperatures in the mid-70s during December, January, and February, the winter weather is definitely a big draw, and during June, July, and …
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 7 to March 6, 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.
Winter cold fronts tend to be modified by the warm water as they move in from the north, keeping monthly average temperatures typically only 15 degrees lower in the winter than during the summer. There is still no record of frost, ice, sleet, or snow in Key West, but ice has been reported in the Upper Keys.
Climate is the average of weather over time. August is the hottest month for Key West with an average high temperature of 89.6°, which ranks it as one of the coolest places in Florida. In Key West, there are 7 comfortable months with high temperatures in the range of 70-85°.