Avg weather in May
14 Hrs per day
88 mm per month
72 % avg
8 Mph avg

Washington Weather in May

destination intro image

What’s the weather like in Washington in May?

Washington weather in May is a lot warmer and brighter than previous months. There’s absolutely no chance of snow, so you can leave your ski boots at home. The sun is very warm, giving you plenty of heat to enjoy during your stay.

Geographical influences

There’s a lot going on in Washington in spring, including multiple festivals and special events in the major cities. If you’re in Seattle, you can head over to the Seattle International Film Festival for fantastic premieres and special guest appearances. The weather at this time is influenced by the region’s location in the Pacific Northwest, which means a few rain showers should be expected, along with warm temperatures and lots of sunshine.


Since there’s more sun in May, the days are much longer and brighter. You’ll have up to 14 hours of sunshine per day throughout the month with humidity levels of 72%. Rain is still a problem in spring, but it’s a lot less than previous months with an average rainfall of just 88mm. Near the coast, you’ll notice stronger winds of 8mph along with an average daily temperature of 24°C.

View weather for