Eau Claire weather in September 2025

Expect 21°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Eau Claire in September. Check more long-term weather averages for Eau Claire in September before you book your next holiday to Wisconsin in 2025/2026.

  • 21°C maximum daytime temperature in September in Eau Claire21
    21°C max day temperature
  • 7 hours of sunshine per day
  • 11 days with some rainfall in September in Eau Claire11
    11 days with some rainfall
  • 9°C minimum night-time temperature in September in Eau Claire9
    9°C min night temperature
  • 12 hours of daylight per day in September in Eau Claire12
    12 hours of daylight per day
  • No heat & humidity in September in Eau Claire0
    No heat & humidity
  • 95 mm monthly rainfall in September in Eau Claire95
    95 mm of monthly rainfall
  • UV (maximum) index 5 (Moderate) in September in Eau Claire5
    5 (Moderate) UV index

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The September weather guide for Wisconsin (Eau Claire) 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 / mm)  |  Imperial (°F / inches)

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How hot is it in Eau Claire in September?

Daytime temperatures usually reach 21°C in Eau Claire in September, falling to 9°C at night.

How sunny is it in Eau Claire in September?

There are normally 7 hours of bright sunshine each day in Eau Claire in September - that's 55% of daylight hours.

Does it rain in Eau Claire in September?

There are usually 11 days with some rain in Eau Claire in September and the average monthly rainfall is 95mm.

Eau Claire September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:29 18:42
Monday, 15th September 2025 05:45 18:16
Tuesday, 30th September 2025 06:03 17:48

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