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Weather in September in Seattle/ Tacoma, Wa

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< September >
 
Normal Max/ High Temperature 21°C (69°F)
 
Average Temperature 16°C (61°F)
 
Min/ Low Temperature 11°C (52°F)
 
Normal Precipitation 48mm (1.9in)
Average Daylight per day 12:30
Sun altitude at solar noon on the 21st day.
43°


  • The average temperature in Seattle/ Tacoma, Wa in September is very mild at 15.9 °C (60.62 °F).
  • Afternoons can be warm with average high temperatures reaching 20.7 °C (69.3 °F).
  • Overnight temperatures are generally quite mild with an average low of 11.1 °C (52 °F).
  • The range/ variation of daily average temperatures in September is 9.6 °C (17.3 °F).
  • The weather in September is a little parched. A mere 47.8mm (1.9in) of H2O is dropped.
  • The shortest day is 11:39 long and the longest day is 13:20 long with an average length of 12:30.

Check the distance to and compare the Seattle/ Tacoma, Wa September averages with somewhere beginning with:

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Weather Trend Graph for September in Seattle/ Tacoma, Wa, Usa

Graph of weather in Seattle/ Tacoma, Wa in September

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