Seattle weather

Our guide to the weather in Seattle during January

8

Average high

2

UV Index

88mm

Monthly rainfall

84%

Humidity

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 January.

What's the temperature like in Seattle during January?

The temperature reaches around 8℃ during the daytime in January, 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 January?

Possibly. There's a chance of snow during January 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 January?

January is typically the wettest month in Seattle. On average, there will be 12 rainy days during the month, amounting to 87.9mm in total. That's a significant amount of rain. For comparison, the wettest months in the UK typically sees between 80mm and 100mm, depending on where you are. There's a small chance that you'll catch a thunderstorm during your trip.

Is it windy in Seattle during January?

You're unlikely to experience any strong winds. Expect a light breeze that picks up slightly at times in January. With cool air temperatures, any breeze will feel cold.

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Seattle Blog posts

From the UK's most popular travel bloggers

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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...

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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...

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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?...

Weather in Seattle

Our month-by-month guide to the weather and climate in Seattle

7.9

Seattle weather in

January
8.5

Seattle weather in

February
11.1

Seattle weather in

March
14.2

Seattle weather in

April
18.9

Seattle weather in

May
22.0

Seattle weather in

June
26.8

Seattle weather in

July
26.9

Seattle weather in

August
22.8

Seattle weather in

September
16.4

Seattle weather in

October
10.1

Seattle weather in

November
6.7

Seattle weather in

December