Washington State weather in May
Thinking about venturing to Washington State this May and curious about the weather conditions to expect? This page holds all the key information you seek, responding to your question:
What is the weather like in Washington State in May?
Washington State is a region in the United States of America. The weather in Washington State in May can be quite varied, with temperatures that range from cold to warm and precipitation levels ranging from low to high.
The average highest temperatures fluctuate between cold in Mount Rainier National Park at 3°C to warm in Kennewick at 24°C. Nighttime temperatures generally drop to 9°C in Kennewick and -8°C in Mount Rainier National Park .
In May, precipitation varies across different areas. From low rainfall in Moses Lake with an average of 16 mm to high rainfall in Mount Rainier National Park with 152 mm. Meanwhile, Seattle enjoys approximately 254 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.
For a closer look at May's conditions in Washington State, see the map below. For a more detailed look at Washington State's yearly weather, check out our Washington State climate page.
Where to go in Washington State in May
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Popular destinations
What is the weather like in May for the 5 most popular destinations in Washington State?
Seattle
In May Seattle generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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SeaTac
In May SeaTac generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 9°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Ocean Shores
In May Ocean Shores generally has moderate temperatures with maximum daytime temperatures around 15°C, minimum nighttime temperatures around 8°C and moderate monthly rainfall. So on average the conditions are tolerable that month.
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Bellevue
In May Bellevue generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 8°C and moderate monthly rainfall. So on average the conditions are pleasant that month.
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Leavenworth
In May Leavenworth generally has pleasant temperatures with maximum daytime temperatures around 21°C, minimum nighttime temperatures around 6°C and low monthly rainfall. So on average the conditions are perfect that month.
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Is your destination not in the list? Have a look at other destinations in Washington State, in the United States of America.
Is May the best time to visit Washington State?
In our opinion, May is a good time to visit Washington State with overall pleasant weather in Seattle. It's worth noting that weather conditions might differ depending on the location you visit.
Generally speaking, the best visiting conditions can be found in June, July, August and September offering mostly perfect weather in Seattle. On the other hand, the weather in January, February, March, November and December tend to be poor.
Interested in more climate information?
We have much more information about the climate in Washington State.
Interested in the weather conditions in a specific month? Select the month below.
Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.
Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.