United States of AmericaCountries United States of America Washington State September Temperatures
United States of AmericaUnited States of America Washington State
Washington State United States of America
Temperatures in September
ClimateForecastSeptemberOctober >>

Temperature in Washington State in September

Washington State is a region in the United States of America. September in has maximum daytime temperatures ranging from low in Mount Rainier National Park with 8°C to high temperatures in Pasco with 27°C. Nighttime temperatures generally drop to 10°C in Pasco and -3°C in Mount Rainier National Park . The month of September is in the summer season.

What is the temperature of the different cities in Washington State in September?

To get a sense of September's typical temperatures in the key spots of Washington State, explore the map below. Click on a point for an in-depth look.

Weather conditions Weather
Temperatures
Precipitation
Map not visible? Whoops sorry! Please refresh the page.
Legend very warm warm pleasant moderate cold very cold
Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

  • What is the warmest city in September in Washington State?
    • Data insights from our comprehensive database indicate that Pasco is the city with the highest warmth. Daytime peaks average near 27°C, while the nights are characterized by a low temperature close to 10°C."

  • What is the coldest city in September in Washington State?
    • According to our data, Mount Rainier National Park holds the title for the coldest city in Washington State in September. It experiences maximum temperatures of approximately 8°C and drops to lows of about -3°C during the night.

  • How much sun does Washington State get in September?
    • Seattle enjoys close to 220 hours of sunlight. This not only brightens the days but also uplifts the atmosphere during the month.

    Interested in more climate information?

    We have much more information about the climate in Washington State. Interested in the weather conditions in a specific month? Select the month below.

  • January      
  • February      
  • March      
  • April      
  • May      
  • June      
  • July      
  • August      
  • September      
  • October      
  • November      
  • December      

    • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed 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.