The highest day temperature in December 2025 was 60°F. The lowest night temperature was 35°F. The average values for day and night temperatures during December were 52.4°F и 46.1°F respectivly.

The average sea surface temperature in December 2025 for Newport was 54.1°F. The maximum and minimum values were 52.2°F and 55.2°F respectively.

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

Precipitation total in December for Newport is 3.1 in. It makes december one of the most rainy months of the year.

The average wind speed in December is 10.3 mph. It makes December the most windy month of the year for Newport.

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 Newport in December is 2.8 hours.