September weather in Jean Lafitte, LA
The average temperature in Jean Lafitte in September is 78.3°F (70.2°F–86.5°F). Average precipitation: 6.34 inches.
September is a fall month in Jean Lafitte, and is warmer than the annual average of 68.4°F. Daily temperatures swing about 16.3°F between overnight low and afternoon high. Daylight averages about 12h 10m. For travel, September is a wet month.
Avg High
86.5°F
Avg Low
70.2°F
Precipitation
6.34 in
Daylight
12h 10m
September records in Jean Lafitte
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 98.1°F (2000) | 64.0°F (1992) | 3.00 in (2017) |
| September 2 | 96.1°F (1997) | 66.9°F (2009) | 1.95 in (2000) |
| September 3 | 96.1°F (1995) | 70.0°F (1998) | 1.50 in (2002) |
| September 4 | 96.1°F (1997) | 69.1°F (2006) | 0.81 in (2004) |
| September 5 | 95.0°F (1995) | 68.0°F (1994) | 14.30 in (2011) |
| September 6 | 96.1°F (2000) | 61.0°F (2011) | 2.30 in (1997) |
| September 7 | 96.1°F (2019) | 59.0°F (2011) | 2.82 in (2016) |
| September 8 | 97.0°F (1999) | 61.0°F (2017) | 1.09 in (1993) |
| September 9 | 96.1°F (2019) | 55.9°F (2011) | 0.88 in (2006) |
| September 10 | 95.0°F (1995) | 62.1°F (2011) | 0.90 in (2004) |
| September 11 | 93.0°F (1993) | 45.0°F (2010) | 13.75 in (1998) |
| September 12 | 93.9°F (2010) | 62.1°F (2017) | 1.83 in (2018) |
| September 13 | 91.9°F (1995) | 61.0°F (2015) | 1.27 in (1995) |
| September 14 | 93.9°F (2019) | 1.0°F (2014) | 0.95 in (2009) |
| September 15 | 95.0°F (1995) | 59.0°F (2015) | 1.42 in (1994) |
| September 16 | 93.9°F (1995) | 62.1°F (1999) | 1.90 in (1994) |
| September 17 | 95.0°F (2018) | 59.0°F (2000) | 0.96 in (1996) |
| September 18 | 93.0°F (1995) | 57.9°F (1999) | 0.97 in (2014) |
| September 19 | 95.0°F (2018) | 60.1°F (1999) | 2.00 in (2011) |
| September 20 | 93.9°F (1995) | 61.0°F (1999) | 2.30 in (1998) |
| September 21 | 93.0°F (1993) | 60.1°F (2006) | 1.53 in (1996) |
| September 22 | 95.0°F (1995) | 59.0°F (1999) | 1.43 in (2003) |
| September 23 | 93.9°F (1993) | 54.0°F (1999) | 1.50 in (2000) |
| September 24 | 95.0°F (1993) | 53.1°F (1999) | 0.25 in (2007) |
| September 25 | 91.9°F (1993) | 55.0°F (1999) | 0.82 in (2006) |
| September 26 | 91.9°F (1993) | 55.0°F (1994) | 2.17 in (1992) |
| September 27 | 91.9°F (1993) | 53.1°F (2000) | 13.30 in (2002) |
| September 28 | 91.0°F (2019) | 53.1°F (1993) | 0.94 in (1996) |
| September 29 | 91.0°F (2019) | 51.1°F (2001) | 0.51 in (1996) |
| September 30 | 91.9°F (2009) | 55.0°F (2008) | 0.02 in (1996) |