The highest day temperature in December 2023 was 53°F. The lowest night temperature was 34°F. The average values for day and night temperatures during December were 45.4°F и 43.3°F respectivly.

The average sea surface temperature in December 2023 for Whidbey Island was 47.8°F. The maximum and minimum values were 46.6°F and 48.6°F respectively.

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

Precipitation total in December for Whidbey Island is 2.3 in. It makes december one of the most rainy months of the year.

The average wind speed in December is 8.0 mph. It makes December one of the most windy months of the year for Whidbey Island.

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 Whidbey Island in December is 2.7 hours.