Mercer Island weather in April (Washington State, United States of America)

What should you pack for a trip to Mercer Island in April? Here's what you need to know about the weather for the month.

Temperatures

Typically, April in Mercer Island includes moderate temperatures and moderate rainfall. During the day, temperatures usually reach up to 15°C. At night, they tend to fall to approximately 6°C.

Precipitation

Mercer Island in April usually receives moderate rainfall, averaging around 75 mm for the month. Expect around 17 days of rain based on historical data.

Average sunshine

With around 208 hours of sunshine, the days are mostly sunny. It gives a pleasant and vibrant feel to the area.

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, November and December tend to have less optimal conditions.

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

 

Mercer Island, monthly averages in April

Min Temperature 6°C  

Max Temperature 15°C  

Chance of Rain 55%  

Precipitation 75 mm  

Rainy days 17 days  

Humidity 71% *  

Windspeed 14 km/h *  

Sunshine 208 hours *  

Percentage Sunshine 51% *  

Data from: Seattle, the United States of America (15 KM, 9 Miles).

Where to go in the United States of America in April

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?

Plan on layering your clothes. Some days or part of the day it will be nice and warm and some moments it can be a bit chilly. Bring a rain jacket in case it rains during your stay.

What To Do

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

Swimming

4/10

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 Mercer Island.

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.