September weather in Thibodaux, LA
The average temperature in Thibodaux in September is 79.9°F (71.1°F–88.8°F). Average precipitation: 5.96 inches.
September is a fall month in Thibodaux, and is warmer than the annual average of 70.1°F. Daily temperatures swing about 17.7°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 10m. For travel, September is a wet month.
Avg High
88.8°F
Avg Low
71.1°F
Precipitation
5.96 in
Daylight
12h 10m
September records in Thibodaux
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (2000) | 66.9°F (2006) | 1.56 in (2007) |
| September 2 | 97.0°F (2000) | 66.9°F (1987) | 1.65 in (1985) |
| September 3 | 99.0°F (2000) | 66.0°F (2025) | 1.25 in (1988) |
| September 4 | 99.0°F (2000) | 62.1°F (1987) | 1.69 in (1988) |
| September 5 | 99.0°F (2000) | 63.0°F (1988) | 2.00 in (1975) |
| September 6 | 98.1°F (2000) | 61.0°F (1984) | 3.26 in (1983) |
| September 7 | 98.1°F (2019) | 57.9°F (1988) | 2.57 in (1893) |
| September 8 | 99.0°F (2019) | 60.1°F (2017) | 3.41 in (2000) |
| September 9 | 98.1°F (2019) | 64.0°F (1979) | 1.67 in (1999) |
| September 10 | 97.0°F (1980) | 63.0°F (2012) | 2.88 in (1998) |
| September 11 | 99.0°F (1980) | 59.0°F (1976) | 4.41 in (1998) |
| September 12 | 97.0°F (1980) | 57.9°F (1976) | 4.92 in (2024) |
| September 13 | 97.0°F (1980) | 60.1°F (1976) | 2.62 in (1987) |
| September 14 | 95.0°F (2019) | 55.9°F (2015) | 1.46 in (1977) |
| September 15 | 96.1°F (1980) | 61.0°F (2015) | 3.46 in (2021) |
| September 16 | 97.0°F (2018) | 60.1°F (1989) | 3.35 in (1987) |
| September 17 | 96.1°F (2018) | 57.9°F (2000) | 1.22 in (1980) |
| September 18 | 97.0°F (2018) | 53.1°F (1981) | 1.07 in (2006) |
| September 19 | 98.1°F (2018) | 52.0°F (1981) | 1.65 in (1998) |
| September 20 | 96.1°F (2018) | 54.0°F (1981) | 2.04 in (1986) |
| September 21 | 96.1°F (2005) | 59.0°F (1981) | 3.08 in (1996) |
| September 22 | 93.9°F (1980) | 50.0°F (1983) | 1.07 in (1894) |
| September 23 | 93.9°F (1980) | 48.0°F (1983) | 1.18 in (2000) |
| September 24 | 93.9°F (1980) | 50.0°F (1983) | 4.91 in (2005) |
| September 25 | 93.9°F (2000) | 51.1°F (1999) | 1.83 in (2002) |
| September 26 | 93.0°F (1986) | 50.0°F (1990) | 7.51 in (2002) |
| September 27 | 95.0°F (1977) | 48.9°F (1982) | 0.57 in (1978) |
| September 28 | 96.1°F (1977) | 50.0°F (1991) | 2.31 in (1996) |
| September 29 | 95.0°F (1977) | 52.0°F (1975) | 0.99 in (2018) |
| September 30 | 93.9°F (1980) | 51.1°F (2022) | 3.93 in (2021) |