The highest day temperature in December 2023 was 70°F. The lowest night temperature was 19°F. The average values for day and night temperatures during December were 48.2°F и 39.9°F respectivly.

The average sea surface temperature in December 2023 for Nantong was 56.5°F. The maximum and minimum values were 50.2°F and 59.4°F respectively.

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

Precipitation total in December for Nantong is 0.8 in. It makes december one of the least rainy months of the year.

The average wind speed in December is 8.8 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 Nantong in December is 6.6 hours.