September weather in Nassau Bay, TX
The average temperature in Nassau Bay in September is 80.1°F (71.8°F–88.4°F). Average precipitation: 7.34 inches.
September is a fall month in Nassau Bay, and is warmer than the annual average of 70.6°F. Daily temperatures swing about 16.6°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
88.4°F
Avg Low
71.8°F
Precipitation
7.34 in
Daylight
12h 10m
September records in Nassau Bay
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (2000) | 66.0°F (2004) | 2.10 in (1996) |
| September 2 | 102.0°F (2000) | 66.9°F (2004) | 2.19 in (2018) |
| September 3 | 104.0°F (2000) | 69.1°F (2009) | 2.76 in (2022) |
| September 4 | 106.0°F (2000) | 68.0°F (2018) | 2.08 in (1992) |
| September 5 | 105.1°F (2000) | 63.0°F (2011) | 1.64 in (1991) |
| September 6 | 96.1°F (2012) | 60.1°F (2011) | 2.63 in (1991) |
| September 7 | 95.0°F (2019) | 59.0°F (2011) | 2.88 in (2010) |
| September 8 | 93.9°F (1997) | 57.9°F (2011) | 1.18 in (1996) |
| September 9 | 97.0°F (1997) | 59.0°F (2011) | 1.19 in (1997) |
| September 10 | 95.0°F (2011) | 63.0°F (2012) | 4.47 in (1998) |
| September 11 | 97.0°F (2011) | 64.0°F (2012) | 4.71 in (2018) |
| September 12 | 99.0°F (2011) | 61.0°F (2017) | 3.50 in (2018) |
| September 13 | 100.0°F (2011) | 62.1°F (2015) | 6.71 in (2008) |
| September 14 | 97.0°F (2011) | 64.0°F (2015) | 3.79 in (2008) |
| September 15 | 95.0°F (2020) | 57.9°F (1993) | 1.55 in (2002) |
| September 16 | 96.1°F (2004) | 57.9°F (1993) | 1.97 in (2014) |
| September 17 | 95.0°F (1995) | 57.9°F (2000) | 4.86 in (2019) |
| September 18 | 95.0°F (2016) | 57.0°F (2000) | 2.57 in (2019) |
| September 19 | 93.0°F (2005) | 59.0°F (1999) | 2.98 in (1991) |
| September 20 | 96.1°F (1999) | 59.0°F (2012) | 3.59 in (2003) |
| September 21 | 97.0°F (2005) | 57.9°F (2012) | 4.78 in (2020) |
| September 22 | 96.1°F (2022) | 55.0°F (1999) | 3.72 in (2020) |
| September 23 | 93.9°F (2022) | 50.0°F (1999) | 4.04 in (2006) |
| September 24 | 93.9°F (2011) | 52.0°F (1994) | 0.85 in (1996) |
| September 25 | 97.0°F (2011) | 50.0°F (1994) | 1.43 in (2024) |
| September 26 | 96.1°F (2011) | 50.0°F (1994) | 1.18 in (2018) |
| September 27 | 97.0°F (2011) | 50.0°F (1991) | 0.97 in (2015) |
| September 28 | 98.1°F (2011) | 51.1°F (1993) | 0.43 in (2021) |
| September 29 | 96.1°F (2019) | 51.1°F (1993) | 2.67 in (1999) |
| September 30 | 93.0°F (1998) | 53.1°F (1996) | 0.83 in (2021) |