Seattle Weather December Averages, USA

    • Temperature Temperature 5°C 41°F
    • High Temperature Holiday Weather 8°C 46°F
    • Low Temperature Holiday Weather 2°C 36°F
    • Sunshine Hours Sunshine Hours 2 hrs
    • Rainfall Rainfall 150 mm
    • Rainfall days Rainfall days 19 days
    • Sea Temperature Sea Temperature 8°C 46°F

    Seattle Weather for December 2019

    The winter weather continues into December.

    This means cool but mild days that see little sunshine, with overcast skies and plenty of rain.

    Snow and fog can also come in this month, but are usually quick to clear up.

    The average daily temperature expected in Seattle in this month is 8°C (46°F), dropping to an average temperature of 2°C (36°F).

    Seattle sees up to 2 hours of sunshine per day throughout the month.

    The average expectation for rain fall for this month is 150 mm over 19 days.

    Seattle in this month expects an average of 5 days of snow or foggy weather.

    The average temperature of the sea during this month is 8°C (46°F).

    For any ski or snowboard enthusiasts, snow on the mountains in December means that most of the resorts around Seatle are open for the season.

    Parades, games, shopping and Santa are all on offer with the Enumclaw Christmas Parade & Holiday Celebration, bound to get you in the festive spirit.

    More holiday fun is on offer with the Winterfest at Seattle Center, with ice skating, dances and plenty more festive fun going on.

    The ever popular Matzo Ball that goes on across America on Christmas eve is a singles mixer and dance for Jewish singletons.

    The Tree Lighting Celebration and Holiday Parade is another ever popular annual event in Seattle. The fun goes on throughout the entire day, ending with a spectacular fireworkds display in the evening. Not to be missed!


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