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Key West in April: Weather, Average temperature and Climate

Planning a trip and want to know what the weather in Key West in April will be like? Take a look at our weather guide for Key West, based on historical data.
Check flight prices to Key West on Avionero:
April

Weather in Key West in April 2026

Good Weather
Warm
☀️
Sunny
Planning a trip to Key West in April? You are in luck! The weather is generally good, with an average maximum temperature of +79°F and approximately 13 sunny days. Just be prepared for some rain, as there are usually around 10 rainy days and 46 mm of precipitation. Expect good weather and pack accordingly to enjoy the outdoors. Search flights in one click on Avionero.
Good to know:
  • April is usually the driest month of the year in Key West

Average weather

☀️
+79°F
Avg. max. temperature
+57°F
Min.
+90°F
Max.
46 mm
Total precipitation
73%
Avg. humidity
5 m/s
Avg. wind
13 ☀️
Sunny Days
7 ⛅️
Cloudy
10 🌦
Rainy
Our opinion: Key West has good weather in April.

Average temperature in Key West in April

Here are the expected maximum, average and minimum temperatures in Key West for April based on the historical data.
Last Year
Historical Data

Going from a maximum of +86°F during the day to a minimum of +72°F during the night, the temperature in April averages around +82°F.

The average maximum temperature goes up 13% by the end of the month, compared with the beginning of the month, from +82°F to +84°F.

Is Key West warm or cold in April?

Key West is typically warm in April.

Maximum temperatures go up compared to the previous month from +75°F to +79°F. The minimum temperature also goes up from +70°F to +73°F.

It’s generally warm, but pack a long-sleeve shirt for evenings.

Take a look at how April is compared to other months in Key West:

Climate in Key West in April

Key West weather looks like this, on average, in April and the surrounding months.
MarchAprilMay
Avg. temperature
+75°F+79°F+82°F
Min. temperature
+52°F+57°F+64°F
Max. temperature
+86°F+90°F+91°F
Rainfall
41 mm46 mm84 mm
Wind
5 m/s5 m/s4 m/s
Humidity
74%73%74%
Air pressure
1016 HPa1015 HPa1014 HPa
Sunny days
131310
Cloudy days
876
Rainy days
91014
Snowy days
000

April weather is still as good as in March. It’s getting warmer as April arrives. The average maximum temperature goes up from +75°F to +79°F during the day. Prepare for more rain. Average rainfall goes from 41 mm to 46 mm. It feels drier, as humidity decreases from 74% to 73%. The average wind speed doesn’t change much during April, staying around 5 m/s. The amount of sunny days stay about the same, averaging 13 sunny days during the month.

May brings much the same weather, it remains good.

Wind

Wind speed in Key West in April based on historical data.
Last Year
Historical Data

The average wind speed is 4 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.

The average wind speed in Key West is gradually increasing during April, going from 6 m/s to 7 m/s over the course of the month.

Rain

Amount of rainfall in mm during April in Key West based on historical data.
Last Year
Historical Data
Typically, there is a 33% chance of rain on an average day in April, with total rainfall of approximately 67 mm. The maximum amount of rainfall per day is around 21 mm, which is considered light rain. April is a pretty wet month with over 10 rainy days, so don’t forget to pack an umbrella, raincoat, and a pair of wellies.
Here’s how April is compared with other months in the amount of precipitation, total mm:
Key West wettest month is September, where a typical day has a 70% chance of precipitation and 173 mm of rainfall per day. February, on the other hand, is the driest month with a mere 32% chance of precipitation and 38 mm of rainfall per day.

How was the weather last April in Key West?

This is the weather in Key West in April 2024:
1 April
☀️
+83°F
2 April
☀️
+82°F
3 April
☀️
+83°F
4 April
☀️
+85°F
5 April
☀️
+85°F
6 April
☀️
+85°F
7 April
☀️
+84°F
8 April
☀️
+82°F
9 April
☀️
+85°F
10 April
☀️
+82°F
11 April
🌧️
+80°F
12 April
🌧️
+83°F
13 April
☀️
+82°F
14 April
☀️
+82°F
15 April
☀️
+84°F
16 April
☀️
+84°F
17 April
☀️
+83°F
18 April
☀️
+80°F
19 April
☀️
+82°F
20 April
☀️
+82°F
21 April
☀️
+82°F
22 April
☀️
+83°F
23 April
☀️
+85°F
24 April
☀️
+83°F
25 April
☀️
+81°F
26 April
☀️
+84°F
27 April
☀️
+84°F
28 April
☀️
+84°F
29 April
☀️
+86°F
30 April
☀️
+84°F
In April 2024 Key West had 28 sunny days, 0 cloudy days, and 2 rainy days. The average maximum temperature was +82°F, with an absolute maximum of +86°F and a minimum of +79°F. The average humidity was 74%, with a maximum of 97% and a minimum of 45%. The average wind speed was 4 m/s, with a maximum of 12 m/s and a minimum of 0 m/s.
Are you planning a trip in April?

Climate Change Over the Years

This is how Key West climate has changed over the last 43 years.

The climate in Key West in April has not changed that much over the last 43 years.

The average temperature was the lowest in 1981 (+77°F) and the highest in 2019 (+85°F). The driest year was 2009 with only 624 mm of rainfall, and the wettest year was 2024 with 1925 mm.

FAQ

Frequently asked questions about the weather in Key West in April:

Is April a good time to visit Key West?

April is a really good time to go to Key West. The weather is nice so plan your packing around outdoor activities and exploring. Check out other good time to visit Key West.

Can you sunbathe in Key West in April?

April is warm in Key West. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.

Is Key West rainy in April?

Key West is usually dry in April. Plan your packing around outdoor activities and exploring.

Is it sunny in Key West in April?

The amount of sunny days in Key West during April varies; prepare for a mix of clouds and sun.

Other cities in USA

Check out the weather for other cities in USA.

Monthly weather in Key West

Source of the data

For this page, we’ve looked at the typical weather in Key West, based on historical hourly weather data from January 1, 1979, to December 31, 2023.

For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.