Seattle weather
Our guide to the weather in Seattle during December
We've looked at the most up-to-date weather data for Seattle, covering the last 12 years up to 2026, plus we've asked our team of travel bloggers for their first-hand experiences in order to answer the most frequently asked questions about Seattle weather in December.
What's the temperature like in Seattle during December?
December is typically the coolest month in Seattle. The temperature reaches around 7℃ during the daytime, falling away to 2℃ at night. The UV index will be low at this time of year, so not something to worry about. However, if you're going to be outside for long periods it's always a good idea to apply a small amount of sunscreen to exposed skin.
Does it snow in Seattle during December?
Possibly. There's a chance of snow during December but not as much as you might think. Check the local forecast before you leave home so that you can pack appropriate footwear and clothing.
Does it rain in Seattle during December?
On average, there will be 9 rainy days during the month, amounting to 69.2mm in total. That's broadly comparable with the amount of rain we see in England during the summer months, and would be considered dry. There's a small chance that you'll catch a thunderstorm during your trip.
Is it windy in Seattle during December?
You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in December. With cool air temperatures, any breeze will feel cold.
Seattle Blog posts
From the UK's most popular travel bloggers
Weekend in Seattle itinerary: Fun 3 days in Seattle!
26th January 2022 by PommieTravels
My initial impressions of Seattle were so-so. First of all, it was November and super rainy and chilly. When it rains in Seattle, it really rains, which is why the city often gets a bad rap. Coming from the airport Seattle also looks very industrial, with lots of shipping containers and factories. Aircraft manufacturer Boeing has a factory here and big name companies such as Amazon, Costco Wholesale, Microsoft and Starbucks are all headquartered in and around Seattle. Seattle is a rapidly...
10 cheap & affordable things to do in Seattle
5th February 2020 by Twins that Travel
There’s no escaping it: as beautiful, nature-filled and outdoorsy as Seattle might be, this is a city that comes with a price tag. A rather hefty one. With average budgets (for a three day trip) coming in at $500 per person, the high cost of the city’s ticketed attractions, its restaurants and its cool rooftop bars quickly add up. This is certainly something we experienced when we visited the city during our own road trip from Seattle to San Francisco. In fact, out of all the spots we...
The ultimate Pacific Northwest road trip itinerary: Driving Seattle to San Francisco
28th October 2019 by Twins that Travel
Traditionally, road trip itineraries for the Pacific North West are limited to the states of Washington and Oregon; with the option to drive north if you’re feeling particularly adventurous. However, what if you were to go further afield - turning your back on BC’s snow capped mountains in favour of North California’s warmer climes? What if you were to drive from Seattle to San Francisco - a Pacific Northwest road trip with a difference?...
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