September weather in Aiken, SC
The average temperature in Aiken in September is 75.3°F (64.2°F–86.4°F). Average precipitation: inches.
September is a fall month in Aiken, and is warmer than the annual average of 63.9°F. Daily temperatures swing about 22.2°F between overnight low and afternoon high. Daylight averages about 12h 12m. For travel, September is a comfortable month to visit.
Avg High
86.4°F
Avg Low
64.2°F
Precipitation
in
Daylight
12h 12m
September records in Aiken
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (2024) | 66.0°F (2023) | 0.77 in (2017) |
| September 2 | 96.1°F (2018) | 61.0°F (2025) | 1.08 in (2016) |
| September 3 | 96.1°F (2018) | 59.0°F (2023) | 4.38 in (2016) |
| September 4 | 95.0°F (2010) | 60.1°F (2023) | 1.50 in (2014) |
| September 5 | 96.1°F (2011) | 59.0°F (2023) | 0.10 in (2012) |
| September 6 | 95.0°F (2018) | 62.1°F (2010) | 0.31 in (2011) |
| September 7 | 97.0°F (2018) | 57.0°F (2017) | 0.27 in (2017) |
| September 8 | 97.0°F (2019) | 57.0°F (2017) | 0.33 in (2022) |
| September 9 | 96.1°F (2019) | 57.0°F (2011) | 1.56 in (2012) |
| September 10 | 98.1°F (2018) | 57.0°F (2024) | 0.21 in (2009) |
| September 11 | 95.0°F (2019) | 57.9°F (2024) | 0.80 in (2018) |
| September 12 | 93.9°F (2019) | 57.9°F (2012) | 0.95 in (2018) |
| September 13 | 97.0°F (2019) | 57.0°F (2015) | 0.47 in (2016) |
| September 14 | 95.0°F (2019) | 54.0°F (2015) | 0.46 in (2014) |
| September 15 | 93.0°F (2010) | 54.0°F (2015) | 0.11 in (2014) |
| September 16 | 93.9°F (2010) | 54.0°F (2015) | 1.10 in (2021) |
| September 17 | 93.9°F (2019) | 60.1°F (2015) | 2.59 in (2021) |
| September 18 | 98.1°F (2019) | 59.0°F (2013) | 2.92 in (2009) |
| September 19 | 93.0°F (2018) | 54.0°F (2011) | 0.42 in (2014) |
| September 20 | 91.9°F (2010) | 55.0°F (2019) | 0.51 in (2014) |
| September 21 | 96.1°F (2010) | 55.0°F (2019) | 0.47 in (2009) |
| September 22 | 93.9°F (2010) | 57.0°F (2012) | 2.10 in (2011) |
| September 23 | 96.1°F (2024) | 50.0°F (2020) | 1.10 in (2011) |
| September 24 | 93.9°F (2024) | 51.1°F (2012) | 1.29 in (2011) |
| September 25 | 93.0°F (2019) | 53.1°F (2012) | 2.14 in (2015) |
| September 26 | 96.1°F (2019) | 51.1°F (2022) | 0.39 in (2024) |
| September 27 | 96.1°F (2019) | 52.0°F (2021) | 1.58 in (2010) |
| September 28 | 93.0°F (2019) | 54.0°F (2013) | 0.70 in (2018) |
| September 29 | 95.0°F (2019) | 54.0°F (2013) | 2.00 in (2025) |
| September 30 | 96.1°F (2019) | 51.1°F (2009) | 2.30 in (2018) |