Whether you're visiting Washington State in the United States of America during the peak of July (25°C (77°F)) or the cooler months around December (7°C (45°F)), knowing what to pack starts with understanding the local climate. Our overview is based on data from Seattle, the region's most prominent city. For more detailed climate information about other cities in the area, please see the section beneath the map further down the page.
Washington State offers pleasant conditions in June, July, August and September, with temperatures typically ranging from 21°C (70°F) to 25°C (77°F).
The cooler season is during the months of January and December.
When it comes to rainfall, Washington State sees significant variations throughout the year. November tends to be the wettest, receiving 166 mm (6.5 in) of rain, while July is much drier with just 13 mm (0.5 in). July marks the driest time of year, with rainfall falling below 13 mm (0.5 in).
For those seeking sunshine, July usually has the brightest skies, making it an excellent time for exploring the region.
