The highest day temperature in December 2025 was 57°F. The lowest night temperature was 33°F. The average values for day and night temperatures during December were 47.6°F и 42.5°F respectivly.

The average sea surface temperature in December 2025 for Tacoma was 49.8°F. The maximum and minimum values were 48.0°F and 51.6°F respectively.

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

Precipitation total in December for Tacoma is 1.9 in. It makes december one of the most rainy months of the year.

The average wind speed in December is 5.4 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 Tacoma in December is 2.7 hours.