December is a popular time to visit Florida, offering a mild and pleasant respite from the cold affecting much of the United States. Determining the “average” temperature is complex because the state stretches over several degrees of latitude. This extensive north-to-south span means December weather varies significantly depending on the specific destination.
Statewide Overview of December Temperatures
The statewide mean monthly temperature for Florida in December, based on data from 1991 to 2020, is approximately 62.0 degrees Fahrenheit (16.6 degrees Celsius). This single figure averages the diverse climate conditions experienced across the peninsula.
Typical daily temperatures across the state generally fall within a range of 60 to 75 degrees Fahrenheit. This moderate climate is influenced by proximity to warm ocean waters and is heavily weighted by the larger, more temperate central and southern regions.
Significant Regional Differences Across Florida
The experience of December weather changes dramatically as one travels from the Panhandle down to the Keys.
North Florida and the Panhandle
North Florida, including cities like Pensacola and Jacksonville, experiences the coolest conditions. Average daytime highs often hover in the low-to-mid 60s Fahrenheit, with nighttime lows frequently dropping into the 40s. These regions are more susceptible to continental cold fronts, which can occasionally push temperatures toward the freezing mark.
Central Florida
Moving into Central Florida, encompassing areas such as Orlando and Tampa, the climate becomes noticeably milder. Average daily high temperatures typically reach around 74 degrees Fahrenheit, while the average nighttime low settles near 53 degrees Fahrenheit. This area still experiences occasional cooler snaps, but they are less severe than in the north.
South Florida and the Keys
South Florida and the Keys, including Miami and Key West, maintain a near-tropical environment throughout December. Average high temperatures in this southern zone routinely climb to the upper 70s Fahrenheit. Nighttime lows remain considerably warmer, averaging in the mid-60s Fahrenheit, reflecting the strong influence of the Atlantic Ocean and the Gulf Stream. Key West records an average high of 78 degrees Fahrenheit and a low of 68 degrees Fahrenheit, showcasing the mildest conditions in the continental United States.
Daily Temperature Swings and Practical Considerations
A significant characteristic of Florida’s December weather is the substantial diurnal temperature variation—the difference between the daytime high and the nighttime low. While the afternoon sun feels warm, with ample sunshine averaging six to eight hours per day, the air temperature drops rapidly after sunset. For example, a Central Florida day peaking at 74 degrees Fahrenheit can easily see evening temperatures fall more than 20 degrees.
The lower humidity in December, compared to summer months, contributes to a drier feeling and a more pronounced cooling effect after sundown. This means that even when the average high is comfortable, the early morning and evening hours can feel surprisingly cool.
Visitors should plan for these temperature swings, particularly if spending time outdoors after dark. Packing layers is highly recommended, as a light jacket or sweater becomes necessary once the sun dips below the horizon. Clothing that can be easily added or removed is essential to remain comfortable throughout the day.