Redding weather in September 2025

Expect 33°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Redding in September based on long-term weather averages. There is usually 3 days with some rainfall and 28 mm of average monthly rainfall in September.

  • 33°C maximum daytime temperature in September in Redding33
    33°C max day temperature
  • 11 hours of sunshine per day
  • 3 days with some rainfall in September in Redding3
    3 days with some rainfall
  • 14°C minimum night-time temperature in September in Redding14
    14°C min night temperature
  • 12 hours of daylight per day in September in Redding12
    12 hours of daylight per day
  • High heat & humidity in September in ReddingH
    High heat & humidity
  • 28 mm monthly rainfall in September in Redding28
    28 mm of monthly rainfall
  • UV (maximum) index 6 (High) in September in Redding6
    6 (High) UV index

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The September weather guide for California (Redding) 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 Redding in September?

Daytime temperatures usually reach 33°C in Redding in September with high heat and humidity, falling to 14°C at night.

How sunny is it in Redding in September?

There are normally 11 hours of bright sunshine each day in Redding in September - that's 87% of daylight hours.

Does it ever rain in Redding in September?

There are usually 3 days with some rain in Redding in September and the average monthly rainfall is 28mm.

Redding September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:37 18:41
Monday, 15th September 2025 05:51 18:18
Tuesday, 30th September 2025 06:05 17:53

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