Aiken weather in September 2025

Expect 30°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Aiken in September. Check more long-term weather averages for Aiken in September before you book your next holiday to South Carolina in 2025/2026.

  • 30°C maximum daytime temperature in September in Aiken30
    30°C max day temperature
  • 7 hours of sunshine per day
  • 7 days with some rainfall in September in Aiken7
    7 days with some rainfall
  • 17°C minimum night-time temperature in September in Aiken17
    17°C min night temperature
  • 12 hours of daylight per day in September in Aiken12
    12 hours of daylight per day
  • Moderate heat & humidity in September in AikenM
    Moderate heat & humidity
  • 91 mm monthly rainfall in September in Aiken91
    91 mm of monthly rainfall
  • UV (maximum) index 8 (Very High) in September in Aiken8
    8 (Very High) UV index

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The September weather guide for South Carolina (Aiken) 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 Aiken in September?

Daytime temperatures usually reach 30°C in Aiken in September with moderate heat and humidity, falling to 17°C at night.

How sunny is it in Aiken in September?

There are normally 7 hours of bright sunshine each day in Aiken in September - that's 59% of daylight hours.

Does it rain in Aiken in September?

There are usually 7 days with some rain in Aiken in September and the average monthly rainfall is 91mm.

What is the chance of a hurricane in Aiken in September?

On average less than 1 day in September in Aiken is likely to be affected by the passage of one or more tropical storms.

Aiken September sunrise & sunset times

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

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:01 18:52
Monday, 15th September 2025 06:10 18:33
Tuesday, 30th September 2025 06:21 18:12

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