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

Planning a trip to Mercer Island in April? Wondering if it's an optimal time for a visit? This page provides detailed information on the weather conditions for that month.

In April, Mercer Island generally has moderate temperatures and moderate rainfall. Anticipate daytime temperatures around 15°C, while night temperatures can drop to 6°C.

Mercer Island in April usually receives moderate rainfall, averaging around 75 mm for the month. Typically around 17 days of rainfall is expected.

The city usually sees around 208 hours of sunlight, indicating many sunny days.

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 TemperatureMin Temperature 6°C  
Max TemperatureMax Temperature 15°C  
Chance of RainChance of Rain 55%  
PrecipitationPrecipitation 75 mm  
Rainy daysRainy days 17 days  
HumidityHumidity 71% *  
WindspeedWindspeed 14 km/h *  
SunshineSunshine 208 hours *  
Percentage SunshinePercentage 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 in April and which places have the best weather conditions in this month.

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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 Mercer Island in April?

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 in April.

Swimming
4/10
Cycling
6/10
Walking
6/10
Camping
4/10
Outdoor sports
9/10

Interested in more climate information?

Weather and Climate 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 climate conditions. Find out where to go with our weather planner.