South Miami Weather in December

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

The climate in South Miami during December can be summarized as warm, humid and reasonably dry.

December is in the winter in South Miami and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a muggy 24°C (76°F), whilst at night 17°C (63°F) is normal.

South Miami weather averages (imperial / metric)
Daytime temperature 24.4°C 75.8°F
Nightly temperature 17.1°C 62.7°F
Average temperature 20.7°C 69.3°F
Daily sunshine 7.6 hrs
Avg rainfall 43 mm 1.7 ins
Rainy days 6 days
Sea temperature 24.8°C 76.7°F
Humidity 74%
Windspeed 16.6kph 10 mph

On average December is the driest month of the year in South Miami with around 43mm 1.7 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.

On the flip side this corresponds to an average of 7.6 hours of sunshine per day.

December temperatures in South Miami

South Miami average temperature in December

December rainfall

South Miami average rain in December

December hourly sunshine

South Miami 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 South Miami in December 2025.