The highest day temperature in December 2025 was 72°F. The lowest night temperature was 22°F. The average values for day and night temperatures during December were 54.4°F и 40.3°F respectivly.

The average sea surface temperature in December 2025 for North Topsail Beach was 55.4°F. The maximum and minimum values were 51.8°F and 61.0°F respectively.

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

Precipitation total in December for North Topsail Beach is 1.2 in.

The average wind speed in December is 7.9 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 North Topsail Beach in December is 6.2 hours.