Average Monthly Sunshine in Florida Keys

The graphs on this page shows the average number of hours per month and per day that Florida Keys receives direct sunlight. The numbers are calculated over a 30-year period to provide a reliable average.

Monthly hours of sunshine

While the amount of sunshine in Florida Keys changes moderately throughout the year, the annual total remains impressive at around 3405 hours. Expect slightly brighter days in May and a subtle dip in November.

Daily hours of sunshine

This means you will experience moderate variation in sunshine hours throughout the year. With 11.4 hours daily sunshine in May, it dips to 7.7 hours in November.

Florida Keys’s total hours of sunshine compared to other major cities

Florida Keys enjoys an average of 3405 hours of sunshine annually. Let’s compare this with some popular tourist destinations:

In Lisbon, Portugal, there are approximately 2801 hours of sunshine annually, highlighting its warm and sunny Mediterranean climate.

In contrast, Brussels, UK, receives only about 1590 hours of sunshine per year, known for its frequently overcast and rainy skies.

In Seoul, South Korea, there are approximately 2133 hours of sunshine per year, mostly during spring and autumn.

Melbourne, Australia, has 2380 hours of sunshine annually, with its famous “four seasons in a day” weather pattern.

Other climate information

September, Florida Keys’s wettest month, receives 159 mm of rainfall and has a maximum daytime temperature of 31°C. During the driest month March you can expect a temperature of 26°C.

For more detailed insights into the city’s temperatures, check out our Temperature page. To explore more about precipitation patterns, visit our Florida Keys Precipitation page.