Issaquah weather in May (Washington State, United States of America)

What kind of weather does May bring to Issaquah? Get all the weather information you need to plan your visit.

Temperatures

The typical weather for May in Issaquah includes moderate temperatures and moderate rainfall. Anticipate daytime highs near 17°C, and cooler nights with temperatures around 7°C.

Precipitation

Issaquah in May usually receives moderate rainfall, averaging around 99 mm for the month. Climate statistics over the past 30 years suggest around 16 days of rain.

Average sunshine

The days are predominantly sunny, with an estimated total of around 254 hours of sunshine. These sun-filled days are perfect for spending time outside. Whether it's playing sports, visiting a park, or going for a bike ride.

In case you lean more towards enjoying temperate temperatures and rain-free days June, July, August and September typically offer the most optimal weather. In contrast, January, February, March, April, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Issaquah climate page with graphs.

 

Issaquah, monthly averages in May

Min Temperature 7°C  

Max Temperature 17°C  

Chance of Rain 53%  

Precipitation 99 mm  

Rainy days 16 days  

Humidity 68% *  

Windspeed 14 km/h *  

Sunshine 254 hours *  

Percentage Sunshine 54% *  

Data from: Seattle, the United States of America (21 KM, 13 Miles).

Where to go 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.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

For visitors traveling to Issaquah, we recommend wearing layers. So maybe a skirt, t-shirt, shorts for during the day and jeans and a warm jacket for some days and evenings. Bring a rain jacket in case it rains during your stay. Plan on layering your clothes.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

6/10

Walking

6/10

Camping

4/10

Outdoor sports

9/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Issaquah.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find 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 travel conditions. Find out where to go with our weather planner.