Seattle weather in December (Washington State, United States of America)
Curious about the December weather in Seattle? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.
In December, Seattle typically experiences low temperatures and high rainfall. December falls within the winter season. Throughout the day, temperatures typically settle at around 8°C. But by evening, they drop to around 2°C. Typically, it's the chilliest month of the year. Ensure you're prepared by packing appropriate winter gear.
Seattle in December usually receives high rainfall, averaging around 143 mm for the month. Based on our climate data of the past 30 years, about 20 days of rain are anticipated.
The area experiences limited sunny days, amounting to roughly 54 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days
If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Seattle. June, July, August and September typically offer the best circumstances. While January, February, March, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Seattle climate page with graphs.
Seattle, monthly averages in December
Where to go in the United States of America in December
Find out more about the weather in the United States of America in December and which places have the best weather conditions in this month.
So, what should you wear in Seattle in December?
Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in December.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Seattle.
Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.