The highest day temperature in December 2025 was 83°F. The lowest night temperature was 31°F. The average values for day and night temperatures during December were 64.5°F и 53.4°F respectivly.

The average sea surface temperature in December 2025 for New Orleans was 63.2°F. The maximum and minimum values were 56.8°F and 67.6°F respectively.

Most of the days in December are gloomy but you can also expect sunny days.

Precipitation total in December for New Orleans is 1.6 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 8.7 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 New Orleans in December is 5.2 hours.