The highest day temperature in December 2023 was 88°F. The lowest night temperature was 56°F. The average values for day and night temperatures during December were 72.0°F и 67.0°F respectivly.

The average sea surface temperature in December 2023 for Sanibel Island was 70.7°F. The maximum and minimum values were 65.8°F and 75.4°F respectively.

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

Precipitation total in December for Sanibel Island is 0.6 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 9.6 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 Sanibel Island in December is 7.0 hours.