The best time to visit Key West in Florida depends on what cruise and hotel visitors plan to do when they get there.

Key West is a growing cruise port at the southern tip of Florida. It is a popular port of call with cruises that leave from Miami and Fort Lauderdale for the eastern Caribbean.

The best time to visit Key West for a combination of warm temperatures and low risk of rain is April and May. The worst time to visit Key West is August and especially September for a high risk of rain from the annual Caribbean hurricane season.

Visitors who favor land activities will find that winter also is a good time to go. Visitors who favor water activities may want to go from late spring to early summer.

© 2021 Scott S. Bateman

Average daytime temperatures range from the mid 70s Fahrenheit or low 20s Celsius in the winter to the high 80s Fahrenheit or low 30s Celsius in the summer.

But the winter months also are part of the dry season while the late summer months are part of the rainy season.

Key West Weather By Month

January: The average daytime temperature is 74 degrees Fahrenheit. It rains an average of two inches and six days during the month.

© 2021 Scott S. Bateman

February: The average daytime temperature is 76 degrees Fahrenheit. It rains an average of less than two inches and five days during the month.

March: The average daytime temperature is 78 degrees Fahrenheit. It rains an average of two inches and six days during the month.

April: The average daytime temperature is 81 degrees Fahrenheit. It rains an average of two inches and five days during the month.

May: The average daytime temperature is 85 degrees Fahrenheit. It rains an average of three inches and seven days during the month.

June: The average daytime temperature is 88 degrees Fahrenheit. It rains an average of four inches and 11 days during the month.

July: The average daytime temperature is 89 degrees Fahrenheit. It rains an average of four inches and 12 days during the month.

August: The average daytime temperature is 89 degrees Fahrenheit. It rains an average of five inches and 14 days during the month.

Trolleys take visitors through downtown Key West. © 2023 Scott S. Bateman

September: The average daytime temperature is 88 degrees Fahrenheit. It rains an average of seven inches and 16 days during the month.

October: The average daytime temperature is 85 degrees Fahrenheit. It rains an average of five inches and 11 days during the month.

November: The average daytime temperature is 80 degrees Fahrenheit. It rains an average of two inches and seven days during the month.

December: The average daytime temperature is 76 degrees Fahrenheit. It rains an average of two inches and six days during the month.