Seattle Average Yearly Weather

The yearly weather in Seattle is typically around 15 throughout the year, with temperatures varying each month

Weather statistics show that July is the hottest month of the year and January is the coldest period of the year. Temperatures differ by 16. Typically the temperatures are around 15 in Spring (Mar, Apr, May) 22 in Summer (June, July and August) , 16 in Autumn (Sept – Nov) and 8 during Winter.

MonthDegrees Celsius
January7
February10
March12
April14
May18
June21
July23
August23
September20
October16
November11
December8


When is the best time to go to Seattle?

Our collation of the weather data helps to decide when the best time to visit Seattle

  • Typical Average Daily Temperature: 15
  • Typical Hottest Month: July
  • Typical Coldest Month: January
  • Average Spring Temperature: 15
  • Average Summer Temperature: 22
  • Average Autumn Temperature: 16
  • Average Winter Temperature: 8