Atlantis Weather in December

What's the weather like in Atlantis (Florida) in December 2025?

The climate in Atlantis during December can be summarized as warm and reasonably dry.

December is in the winter in Atlantis and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around 25°C (76°F), whilst at night 15°C (59°F) is normal.

Atlantis weather averages (imperial / metric)
Daytime temperature 24.5°C 76°F
Nightly temperature 14.8°C 58.6°F
Average temperature 19.6°C 67.3°F
Daily sunshine 7.5 hrs
Avg rainfall 61 mm 2.4 ins
Rainy days 8 days
Sea temperature 24.7°C 76.4°F
Humidity 73%
Windspeed 16.6kph 10 mph

On average December is the driest month of the year in Atlantis with around 61mm 2.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.5 hours of sunshine per day.

December temperatures in Atlantis

Atlantis average temperature in December

December rainfall

Atlantis average rain in December

December hourly sunshine

Atlantis average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Atlantis in December 2025.