The highest day temperature in December 2023 was 80°F. The lowest night temperature was 63°F. The average values for day and night temperatures during December were 73.4°F и 72.9°F respectivly.

The average sea surface temperature in December 2023 for Islamorada was 79.2°F. The maximum and minimum values were 73.2°F and 82.6°F respectively.

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

Precipitation total in December for Islamorada is 1.1 in.

The average wind speed in December is 12.6 mph.

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 Islamorada in December is 5.7 hours.