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Florida Keys weather in September (United States of America)

Will it be rainy or sunny in Florida Keys this September? Our guide gives you the essential weather details for this month.

Temperatures

In September, Florida Keys typically experiences very high temperatures and heavy rainfall. Expect temperatures to climb to 31°C during the day, with nighttime readings dropping to 26°C. These are average temperatures, but occasional heat spikes are possible. Stay comfortable by wearing light clothing and drinking water.

Precipitation

Florida Keys in September usually receives heavy rainfall, averaging around 191 mm for the month. The heaviest rainfall of the year happens this month, with frequent showers. A poncho is your best bet to stay dry. The climate data from previous years indicates that there are typically about 22 days days of rain.

Average sunshine

With around 270 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

If you're looking for dry conditions and comfortable temperatures, September may not be the ideal month to visit Florida Keys. January, February, March, April, May, November and December typically offer the best circumstances. While September tends to showcase less optimal conditions.

Need inspiration to choose your next destination? Our innovative weather planner helps you discover the perfect getaway tailored to your ideal climate conditions.

 

Florida Keys, monthly averages in September

Min TemperatureMin Temperature 26°C  
Max TemperatureMax Temperature 31°C  
Chance of RainChance of Rain 72%  
PrecipitationPrecipitation 191 mm  
Rainy daysRainy days 22 days  
HumidityHumidity 76%  
SunshineSunshine 270 hours  
Percentage SunshinePercentage Sunshine 73%  

Where to go in the United States of America in September

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

It's going to be warm! Consider airy clothing, t-shirts, and other summer clothes. Shorts for men made of cotton or linen are good options for staying cool. However, there's a good chance of rain, so bring a raincoat just in case.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming
8/10
Cycling
7/10
Walking
7/10
Camping
7/10
Outdoor sports
7/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Florida Keys.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.