The highest day temperature in December 2025 was 88°F. The lowest night temperature was 46°F. The average values for day and night temperatures during December were 81.4°F и 68.4°F respectivly.

The average sea surface temperature in December 2025 for Miami was 78.4°F. The maximum and minimum values were 75.6°F and 81.2°F respectively.

You can expect various weather conditions during December. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in December for Miami is 1.5 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 10.8 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Miami in December is 6.1 hours.