The highest day temperature in December 2023 was 75°F. The lowest night temperature was 56°F. The average values for day and night temperatures during December were 66.3°F и 64.9°F respectivly.

The average sea surface temperature in December 2023 for Mustang Island was 66.4°F. The maximum and minimum values were 61.6°F and 69.2°F respectively.

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

Precipitation total in December for Mustang Island is 0.4 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 11.3 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 Mustang Island in December is 6.0 hours.