Spokane weather in September 2025

Expect 73°F daytime maximum temperatures in the shade with on average 9 hours of sunshine per day in Spokane in September. Check more long-term weather averages for Spokane in September before you book your next holiday to Washington State in 2025/2026.

  • 73°F maximum daytime temperature in September in Spokane73
    73°F max day temperature
  • 9 hours of sunshine per day
  • 6 days with some rainfall in September in Spokane6
    6 days with some rainfall
  • 46°F minimum night-time temperature in September in Spokane46
    46°F min night temperature
  • 13 hours of daylight per day in September in Spokane13
    13 hours of daylight per day
  • No heat & humidity in September in Spokane0
    No heat & humidity
  • 0.8 inches monthly rainfall in September in Spokane0.8
    0.8 inches of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Spokane5
    5 (Moderate) UV index

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The September weather guide for Washington State (Spokane) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Spokane in September?

Daytime temperatures usually reach 73°F in Spokane in September, falling to 46°F at night.

How sunny is it in Spokane in September?

There are normally 9 hours of bright sunshine each day in Spokane in September - that's 69% of daylight hours.

Does it rain in Spokane in September?

There are usually 6 days with some rain in Spokane in September and the average monthly rainfall is 0.8 inches.

Spokane September sunrise & sunset times

Browse the sunrise and sunset times for Spokane in September 2025. Select a month to view Spokane sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:09 18:29
Monday, 15th September 2025 05:27 18:01
Tuesday, 30th September 2025 05:48 17:30

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