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United StatesThe climate of Key West
The current climate in Key West features temperatures ranging from a high of 33°C to a low of 24°C throughout the year. The average yearly temperature is around 30°C. At night, temperatures in the colder months average around 19°C and in the warmer months around 28°C.
Average temperatures and precipitation
This chart shows the average monthly maximum and minimum temperatures (in degrees Celsius) and average monthly rainfall (in millimeters) for Key West, Florida.
Temperature records
The highest temperature recorded in Key West in recent years was 42°C in April 2014. The lowest daytime temperature recorded was 14°C in January 2022.
Rainfall amount
On average, Key West receives 954 mm of precipitation each year. For comparison, New York gets 1142 mm of precipitation annually.
The hurricane season in Key West runs from June to November.
Best time to visit Key West?
The best time to visit Key West for sunny weather is January through August and October through December. During this period, you'll have nice temperatures and not too much rain, making it a great time to visit Key West. In the other months of the year, there's too much rain or the temperature isn't ideal for a visit if you want sunny and pleasant weather.
Find affordable trips to Key West
Climate Table of Key West
The climate table of Key West shows the average temperatures, rainfall, and UV index per month. The table provides an overview of the average day and night temperatures in degrees Celsius, the total amount of rainfall in millimeters, the total snowfall in centimeters, and the UV index for each month. Rainfall is always measured as water, even if it's snow or hail.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
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| Temp. max (°C) | 24 | 26 | 27 | 29 | 30 | 31 | 33 | 33 | 32 | 30 | 28 | 26 |
| Temp. min (°C) | 20 | 21 | 22 | 24 | 26 | 27 | 28 | 28 | 28 | 26 | 24 | 22 |
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| Precipitation (mm) | 42 | 41 | 24 | 55 | 93 | 88 | 86 | 107 | 190 | 99 | 52 | 77 |
| UV Index | 6 | 7 | 8 | 9 | 8 | 7 | 9 | 8 | 8 | 7 | 6 | 6 |
Click on the month name to see more weather details, like daily averages, temperatures, and precipitation for the past years in that month.
Temperature charts
These charts display the average temperatures in Key West, Florida. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Average Temperature per Month in Key West
Yearly Temperature in Key West
Precipitation charts
These charts show the average amount of precipitation in Key West, Florida. Precipitation is always measured as water, even when it falls as snow or hail. The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Average Precipitation per Month in Key West
Total Yearly Precipitation in Key West
UV index chart
This chart shows the average UV index per month in Key West, Florida. The UV index indicates the intensity of ultraviolet radiation and ranges from 0 to a maximum of 11.
Average UV Index per Month in Key West
Weather experiences in Key West
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Average weather in Key West by month
Click on a month below to see detailed weather info for Key West. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.