The highest day temperature in December 2023 was 77°F. The lowest night temperature was 37°F. The average values for day and night temperatures during December were 60.8°F и 53.2°F respectivly.

The average sea surface temperature in December 2023 for Bay Saint Louis was 60.6°F. The maximum and minimum values were 53.2°F and 68.2°F respectively.

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

Precipitation total in December for Bay Saint Louis is 1.2 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 7.8 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 Bay Saint Louis in December is 5.8 hours.