Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
The arrival of April sees an average high-temperature of a still moderately hot 77.4°F (25.2°C), hardly diverging from March's 73.9°F (23.3°C). Key West maintains an average low-temperature of 74.8°F (23.8°C) throughout April's nights.Humidity
In Key West, the average relative humidity in April is 77%.Rainfall
In Key West, Florida, in April, during 13.4 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. Throughout the year, in Key West, Florida, there are 199.2 rainfall days, and 31.61" (803mm) of precipitation is accumulated.Ocean temperature
In Key West, the average seawater temperature in April is 77.7°F (25.4°C).Note: Water activities in surface temperatures between 77°F (25°C) and 84.2°F (29°C) are seen as exceptional and extremely agreeable for lengthened time spans.
Daylight
In Key West, the average length of the day in April is 12h and 45min.On the first day of April, sunrise is at 7:17 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:52 am and sunset at 7:56 pm EDT.
Sunshine
In Key West, the average sunshine in April is 9.7h.UV index
The months with the highest UV index in Key West are April through October, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 during April translates into the following guidance:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Heads up! Sand and water reflection magnifies the UV exposure from the Sun.
Frequently asked questions
What are the temperatures in Key West in April?
What is the average humidity in April in Key West?
How many days does it rain in April in Key West?
What is the water temperature in April in Key West?
How many hours of daylight does Key West have in April?
When is the sunrise / sunset in April in Key West?
How many hours of sunshine does Key West have in April?
What is the month with the highest UV index in Key West?
What is the UV index intensity in April in Key West?
Average temperature in April
Key West, FL
- Average high temperature in April: 77.4°F
The warmest month (with the highest average high temperature) is August (85.3°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in April: 74.8°F
The month with the highest average low temperature is August (82.9°F).
The coldest month (with the lowest average low temperature) is January (68.5°F).
Average pressure in April
Key West, FL
- Average pressure in April: 30.01"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are September and October (29.93"Hg).
Average wind speed in April
Key West, FL
- Average wind speed in April: 13.1mph
The windiest months (with the highest average wind speed) are January and November (14.4mph).
The calmest month (with the lowest average wind speed) is July (9.5mph).
Average humidity in April
Key West, FL
- Average humidity in April: 77%
The month with the highest relative humidity is February (78%).
The months with the lowest relative humidity are July, August and September (74%).
Average rainfall in April
Key West, FL
- Average rainfall in April: 1.54"
The wettest month (with the highest rainfall) is September (5.12").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in April
Key West, FL
- Average rainfall days in April: 13.4 days
The months with the highest number of rainy days are August and September (23.1 days).
The month with the least rainy days is February (11 days).
Average sea temperature in April
Key West, FL
- Average sea temperature in April: 77.7°F
The best month for swimming (with the highest average sea temperature) is August (86.9°F).
The coldest months (with the lowest average sea temperature) are January and February (71.2°F).
Average daylight in April /
Average sunshine in April
Key West, FL
- Average daylight in April: 12h and 4min
The month with the longest days is June (Average daylight: 13h and 36min).
The month with the shortest days is December (Average daylight: 10h and 36min).
- Average sunshine in April: 9h and 4min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in April
Key West, FL
- Average sunshine days in April: 13.6 days
The month with the most sunshine days is March (17 days).
The month with the least sunshine days is September (4.5 days).
Average UV index in April
Key West, FL
- Average UV index in April: 7
The months with the highest UV index are April, May, June, July, August, September and October (UV index 7).
The month with the lowest UV index is January (UV index 5).
Average cloud cover in April
Key West, FL
- Average cloud cover in April: 23
The month with the most cloud cover is January (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 23).
Average visibility in April
Key West, FL
- Average visibility in April: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Key West, Florida, USA
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