September weather in Port Neches, TX
The average temperature in Port Neches in September is 80.0°F (70.6°F–89.5°F). Average precipitation: 6.69 inches.
September is a fall month in Port Neches, and is warmer than the annual average of 69.9°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 10m. For travel, September is a wet month.
Avg High
89.5°F
Avg Low
70.6°F
Precipitation
6.69 in
Daylight
12h 10m
September records in Port Neches
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (2000) | 64.9°F (1950) | 3.07 in (1979) |
| September 2 | 104.0°F (2000) | 64.0°F (1967) | 2.91 in (2001) |
| September 3 | 102.9°F (2000) | 61.0°F (1974) | 4.83 in (2018) |
| September 4 | 105.1°F (2000) | 55.0°F (1952) | 4.20 in (1973) |
| September 5 | 104.0°F (2000) | 54.0°F (1974) | 11.80 in (1980) |
| September 6 | 100.9°F (2023) | 57.0°F (2011) | 5.37 in (1980) |
| September 7 | 102.0°F (2023) | 57.0°F (2011) | 2.58 in (1951) |
| September 8 | 102.9°F (2023) | 57.9°F (1988) | 1.94 in (2002) |
| September 9 | 97.0°F (2023) | 60.1°F (1950) | 1.93 in (1997) |
| September 10 | 100.0°F (1980) | 62.1°F (2011) | 2.35 in (1998) |
| September 11 | 97.0°F (1963) | 62.1°F (1969) | 3.23 in (1998) |
| September 12 | 98.1°F (2023) | 57.9°F (2017) | 3.31 in (2003) |
| September 13 | 98.1°F (2013) | 57.9°F (1969) | 3.48 in (2008) |
| September 14 | 97.0°F (1965) | 57.9°F (1964) | 5.20 in (2021) |
| September 15 | 96.1°F (1980) | 60.1°F (1979) | 2.35 in (1971) |
| September 16 | 99.0°F (2004) | 55.9°F (1989) | 3.17 in (2016) |
| September 17 | 98.1°F (2004) | 54.0°F (1961) | 12.09 in (1963) |
| September 18 | 97.0°F (2004) | 53.1°F (1981) | 7.46 in (2019) |
| September 19 | 96.1°F (2016) | 51.1°F (1981) | 11.63 in (2019) |
| September 20 | 99.0°F (2005) | 52.0°F (1981) | 3.49 in (2013) |
| September 21 | 100.9°F (2005) | 57.0°F (1983) | 5.18 in (1951) |
| September 22 | 100.0°F (2005) | 53.1°F (1983) | 4.00 in (1957) |
| September 23 | 96.1°F (2022) | 52.0°F (1994) | 3.52 in (2005) |
| September 24 | 93.9°F (2022) | 52.0°F (1975) | 5.37 in (2005) |
| September 25 | 93.9°F (2013) | 51.1°F (1994) | 2.17 in (1957) |
| September 26 | 93.9°F (1977) | 48.9°F (2000) | 1.82 in (1957) |
| September 27 | 93.9°F (1953) | 52.0°F (2000) | 5.43 in (1996) |
| September 28 | 96.1°F (1956) | 50.0°F (1967) | 3.25 in (1987) |
| September 29 | 95.0°F (1998) | 45.0°F (1967) | 2.45 in (2013) |
| September 30 | 95.0°F (1977) | 48.9°F (1949) | 3.43 in (1988) |