- January weather - Winter 2026 - Seattle, WA
Seattle starts January with an average high-temperature of a still chilly 45°F (7 2°C), hinting at a minimal fluctuation from December Night temperatures in January exhibit a subtle decrease, settling at an average of 36°F (2 2°C) The most humid month is January, with an average relative humidity of 85%
- Seattle, WA Monthly Weather | AccuWeather
Get the monthly weather forecast for Seattle, WA, including daily high low, historical averages, to help you plan ahead
- Seattle (WA) Weather in January: Temperature, Rainfall, More
Explore the historical weather for Seattle in January in the calendar below Use the controls to switch between months and years, and toggle between temperature and rainfall
- 15 Best Things to Do in Seattle in January + Weather Info [2026] - CS . . .
Seattle weather in January will be cold but not frigid Temperatures during this month don’t typically get over 50°F, but they don’t typically slip into freezing temperatures either, rarely falling under 35°F
- Seattle January Weather, Average Temperature (Washington, United States . . .
This report illustrates the typical weather in Seattle, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016
- Weather in Seattle in January 2026 - Detailed Forecast
Seattle typically experiences moderate snowfall in January, with an average of 6 snowy days In general, the average temperature in Seattle at the beginning of January is 45 °F As the month progressed, temperatures tended to moderately rise, reaching an average of 46 °F by the end of January New!
- Seattle WA Weather in January - Current Results
This page gives detailed information on the typical January temperature, precipitation, sun, humidity, wind and storms for Seattle The weather measurements are averages based on climate data gathered at Seattle — Tacoma International Airport, located south of the city center
- Weather in Seattle in january: Temperature, Rainfall, Sunshine. . . for . . .
These charts show the evolution of average minimum maximum temperatures as well as average daily precipitation volume in Seattle in january The weather in january in Seattle is wet (with 3 7in of rainfall over 7 days)
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