World Weather & Climate Information

CLIMATE AND AVERAGE MONTHLY WEATHER IN Seattle (Washington State), United States of America

Seattle experienes warm summers and mild winters. Most rain in Seattle is seen in winter and on an annual base the city experiences a large amount of rainfall making it one of the wettest cities in the country.

Winters in Seattle have an average temperature of aounrd 5 to 8 degrees Celsius (41-46° Fahrenheit), so snowfall is rare. Summers have an average maximum temperature of 20 to 23 degrees Celsius (68-74 ° Fahrenheit).

What is the best time of year to go to Seattle in United States of America? Here are some average weather facts we collected from our historical climate data:
  • During the month of June, July, August and September you are most likely to experience good weather with pleasant average temperatures that fall between 20 degrees Celsius (68°F) and 25 degrees Celsius (77°F).
  • The months January, February, March, October, November and December have a high chance of precipitation.
  • On average, the warmest month is July.
  • On average, the coolest month is December.
  • December is the wettest month. This month should be avoided if you are not a big fan of rain.
  • July is the driest month.
Do these climate conditions match with when you want to go to Seattle in United States of America? Find out where to stay here.

For more information, see the weather forecast and our average climate information (by month in graphs) in a beautiful overview below.

* Data from nearest weather station: Seattle (Washington State), United States of America (0.0 KM).

Average minimum and maximum temperature over the year

The monthly mean minimum and maximum daily temperature. Show in Fahrenheit »
Average min and max temperatures in Seattle, United States of America   Copyright © 2019 www.weather-and-climate.com
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Average monthly hours of sunshine over the year

This is the monthly total of sunhours
Average monthly sunhours in Seattle, United States of America   Copyright © 2019 www.weather-and-climate.com
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Cheapest month to fly to Seattle

Average monthly precipitation over the year (rainfall, snow)

This is the mean monthly precipitation, including rain, snow, hail etc. Show in Inches »
Average precipitation (rain/snow) in Seattle, United States of America   Copyright © 2019 www.weather-and-climate.com
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Average monthly rainy days over the year

This is the number of days each month with rain, snow, hail etc.
Average rainy days (rain/snow) in Seattle, United States of America   Copyright © 2019 www.weather-and-climate.com
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Average humidity over the year

This is the mean monthly relative humidity
Average relative humidity in Seattle, United States of America   Copyright © 2019 www.weather-and-climate.com
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Average wind speed over the year

This is the mean monthly wind speed (meters per second)
Average wind speed in Seattle, United States of America   Copyright © 2019 www.weather-and-climate.com
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Where to stay in Seattle

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