Washington Weather in May
During May, Washington experiences high daytime temperatures of 22°C (72°F) and cooler nights around 9°C (48°F). Expect quite a bit of rainfall. Around 98 mm (3.9 in) is typical.
Rainfall in Washington in May
Expect around 15 days of rain based on historical data, with 98 mm (3.9 in) average. Rain this month is fairly typical, a standard mix of wet and dry days with no particularly heavy or persistent showers.
Temperature in Washington in May
May is one of the better months to visit Washington. Expect 22°C (72°F) during the day and 9°C (48°F) at night. This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With lows around 9°C (48°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Washington in May
With approximately 217 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Washington.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Washington's climate page.
Washington Temperature in May
Min Temperature
9°C (48°F)
Max Temperature
22°C (72°F)
Chance of Rain
50%
Precipitation
98 mm (3.9 in)
Rainy days
15 days
Humidity
63% *
Sunshine
217 hours *
Percentage Sunshine
48% *
Best Places in the United States of America in May
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in May →
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What to Wear in Washington in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Washington in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our Washington's climate page.
Temperature Rainfall Sunshine Humidity
See the full Washington climate overview or explore weather in the United States of America.
