September weather in New Orleans, LA
The average temperature in New Orleans in September is 81.4°F (75.6°F–87.2°F). Average precipitation: 4.64 inches.
September is a fall month in New Orleans, and is warmer than the annual average of 70.9°F. Daily temperatures swing about 11.6°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 10m. For travel, September is a comfortable month to visit.
Avg High
87.2°F
Avg Low
75.6°F
Precipitation
4.64 in
Daylight
12h 10m
September records in New Orleans
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (2000) | 72.0°F (1998) | 1.18 in (1998) |
| September 2 | 99.0°F (2000) | 57.9°F (2016) | 2.41 in (2011) |
| September 3 | 95.0°F (2024) | 72.0°F (1992) | 5.30 in (2011) |
| September 4 | 100.9°F (2000) | 75.0°F (1994) | 2.71 in (2023) |
| September 5 | 97.0°F (2000) | 69.1°F (2011) | 2.95 in (2016) |
| September 6 | 96.1°F (1999) | 66.9°F (2011) | 2.18 in (2024) |
| September 7 | 99.0°F (2023) | 66.9°F (2011) | 0.79 in (2018) |
| September 8 | 93.9°F (2012) | 69.1°F (2011) | 1.55 in (1999) |
| September 9 | 93.9°F (1994) | 71.1°F (2011) | 2.80 in (2015) |
| September 10 | 93.0°F (2002) | 69.1°F (2011) | 2.35 in (1998) |
| September 11 | 93.9°F (2023) | 69.1°F (2017) | 6.28 in (2024) |
| September 12 | 95.0°F (2019) | 69.1°F (2017) | 1.54 in (2009) |
| September 13 | 95.0°F (2019) | 66.0°F (2015) | 1.96 in (2009) |
| September 14 | 93.9°F (1995) | 68.0°F (2015) | 2.43 in (2021) |
| September 15 | 95.0°F (1995) | 70.0°F (2011) | 4.43 in (1994) |
| September 16 | 95.0°F (1995) | 66.9°F (2011) | 0.65 in (1992) |
| September 17 | 93.9°F (1991) | 69.1°F (2008) | 1.75 in (2002) |
| September 18 | 95.0°F (2018) | 71.1°F (2000) | 1.83 in (1998) |
| September 19 | 95.0°F (2018) | 69.1°F (1991) | 0.79 in (1998) |
| September 20 | 95.0°F (1995) | 64.0°F (1991) | 1.45 in (2019) |
| September 21 | 96.1°F (1997) | 64.0°F (1991) | 2.99 in (2013) |
| September 22 | 96.1°F (1997) | 61.0°F (1995) | 0.66 in (2002) |
| September 23 | 95.0°F (2000) | 62.1°F (1995) | 0.98 in (2007) |
| September 24 | 93.0°F (1993) | 64.0°F (1999) | 1.35 in (2002) |
| September 25 | 91.9°F (1993) | 64.9°F (2000) | 0.96 in (2010) |
| September 26 | 91.9°F (1993) | 62.1°F (2000) | 1.22 in (1992) |
| September 27 | 91.9°F (2019) | 62.1°F (1991) | 0.94 in (1996) |
| September 28 | 91.0°F (2009) | 62.1°F (1991) | 1.69 in (2014) |
| September 29 | 93.9°F (1994) | 62.1°F (1996) | 1.33 in (2021) |
| September 30 | 91.0°F (1994) | 64.0°F (2003) | 1.29 in (2012) |