Key West Weather in April

April's weather is the sunniest and least humid of the year for Key West, Florida. That combined with warm, dry days makes for plenty of spectacular island weather this month.

This page gives detailed information on the typical April temperature, precipitation, sun, humidity, wind and storms for Key West.

The numbers here are historical averages based on climate data gathered at the Key West International Airport, located on Key West Island.

Temperature Weather iconTemperature

81 °F April average high 27 °C
72 °F April average low 22 °C

In most years, Key West averages a daily maximum temperature for April that's between 79 and 83 degrees Fahrenheit (26 to 28 degrees Celsius). The minimum temperature usually falls between 69 and 74 °F (21 to 23 °C).

The days at Key West warm steadily during April. By the end of the month, the temperature has climbed around 3 °F (2 °C) above what it was at the start.

21 days 80 °F max. or more (27 °C)
9 days 70 °F min. or less (21 °C)

The temperature in Key West is usually over 70 °F (21 °C) every day during April. Temperatures above 90 °F (32 °C) are not expected here this month.

Only occasionally does the thermometer dip to 60 °F (16 °C) or below in April, an event that doesn't happen every year. And this month normally never gets as cold as 50 °F (10 °C).

Rainy Weather iconRain

2.1 in total precipitation 52 mm
5 days of rain

Half the time, Key West receives 0.9 to 3 inches (24 to 67 mm) of rainfall in April. One in four years has drier weather, while another one in four is wetter.

Sunny Weather iconSun

84 % sunshine
13 days clear skies

April is Key West's sunniest month. The sun's rays reach the ground on the vacation island during 84 percent of daylight hours on average in April, for a total of 321 hours in the month. Typically on 13 days this month the sky is mainly clear, with at most 30 percent cloud cover.

Sunlight in April at Key West lasts for 12 hours and 44 minutes a day on average. The shortest day of the month is the 1st with 12 hours and 25 minutes of daylight. By the end of the month, the days have lengthened to 13:04 from sunrise to sunset. These durations can vary by a minute or two from year to year.

Humid Weather iconHumidity

70 % April average humidity

The relative humidity in Key West during April usually peaks at 77 percent in the morning then drops to 63 percent by early afternoon.

Local Time1 am4 am7 am10 am1 pm4 pm7 pm10 pm
Humidity % 75 77 76 66 63 63 69 73

Windy Weather iconWind

12.2 mph April wind speed average 19.6 kph

April is normally the windiest month for Key West.

Stormy Weather iconStorms

1 day rainfall of 0.5 inches (13 mm) or more
2 days with thunderstorms in April

These weather data are long-term historical averages provided by the National Climatic Data Center of the United States. The temperature and precipitation numbers are 1981-2010 normals while the humidity and thunderstorm statistics are 1961-1990 normals.

Key West Weather
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