Port Saint Lucie Weather in December

The climate in Port Saint Lucie during December can be summarized as warm and reasonably dry.

December is in the winter in Port Saint Lucie and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around 24°C (75°F), whilst at night 12°C (54°F) is normal.

On average December is the driest month of the year in Port Saint Lucie with around 54mm 2.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.

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

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 Port Saint Lucie in December 2025.