Tucson weather in September 2025

Expect 34°C daytime maximum temperatures in the shade with on average 11 hours of sunshine per day in Tucson in September. Check more long-term weather averages for Tucson in September before you book your next holiday to Arizona in 2025/2026.

  • 34°C maximum daytime temperature in September in Tucson34
    34°C max day temperature
  • 11 hours of sunshine per day
  • 5 days with some rainfall in September in Tucson5
    5 days with some rainfall
  • 21°C minimum night-time temperature in September in Tucson21
    21°C min night temperature
  • 12 hours of daylight per day in September in Tucson12
    12 hours of daylight per day
  • High heat & humidity in September in TucsonH
    High heat & humidity
  • 34 mm monthly rainfall in September in Tucson34
    34 mm of monthly rainfall
  • UV (maximum) index 9 (Very High) in September in Tucson9
    9 (Very High) UV index

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The September weather guide for Arizona (Tucson) 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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More about Arizona

How hot is it in Tucson in September?

Daytime temperatures usually reach 34°C in Tucson in September with high heat and humidity, falling to 21°C at night.

How sunny is it in Tucson in September?

There are normally 11 hours of bright sunshine each day in Tucson in September - that's 85% of daylight hours.

Does it ever rain in Tucson in September?

There are usually 5 days with some rain in Tucson in September and the average monthly rainfall is 34mm.

Tucson September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 05:59 18:47
Monday, 15th September 2025 06:08 18:29
Tuesday, 30th September 2025 06:17 18:09

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