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Seattle — weather December

6.3°C Daytime temperatures 3.4°C Night temperatures 5 Sunny days 8.4-8.7 Sun (hours) 6 Rainy days 72.5 mm Precipitation 0°C water temperature
Air temperature
2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012
The maximum daily temperature 14.7°C — 8 December 2015.
The maximum night temperature 13°C — 1 December 2021.
The minimum daily temperature -6°C — 22 December 2022.
The minimum night temperature -9.5°C — 22 December 2022.
Sunny, cloudy and gloomy days
Precipitation, mm
Maximum precipitation 78.4 mm — January. Minimum precipitation 9.6 mm — August.
Wind speed, km / h
Maximum wind speed 10.1 km / h — March. Minimum wind speed 7.9 km / h — August.
Number of hours of sunshine
The maximum number of hours of sunshine per day 10.8 h. — July. The minimum number of hours of sunshine per day 2.9 h. — December.
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