September weather in New Braunfels, TX
The average temperature in New Braunfels in September is 77.6°F (65.9°F–89.3°F). Average precipitation: 3.53 inches.
September is a fall month in New Braunfels, and is warmer than the annual average of 67.1°F. Daily temperatures swing about 23.4°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 10m. For travel, September is hot.
Avg High
89.3°F
Avg Low
65.9°F
Precipitation
3.53 in
Daylight
12h 10m
September records in New Braunfels
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 108.0°F (1951) | 61.0°F (1915) | 4.66 in (1943) |
| September 2 | 108.0°F (1951) | 60.1°F (1915) | 1.84 in (1976) |
| September 3 | 106.0°F (1951) | 61.0°F (1915) | 0.92 in (1946) |
| September 4 | 109.9°F (2000) | 54.0°F (1934) | 2.61 in (1935) |
| September 5 | 111.9°F (2000) | 55.0°F (1974) | 0.98 in (1900) |
| September 6 | 105.1°F (1951) | 55.0°F (1974) | 2.09 in (1935) |
| September 7 | 104.0°F (1951) | 55.0°F (2011) | 3.66 in (1980) |
| September 8 | 106.0°F (1951) | 55.0°F (1918) | 5.86 in (2010) |
| September 9 | 102.0°F (1940) | 55.0°F (1918) | 9.38 in (1921) |
| September 10 | 102.9°F (1950) | 52.0°F (2012) | 2.36 in (1971) |
| September 11 | 102.9°F (1893) | 52.0°F (2012) | 5.11 in (1952) |
| September 12 | 102.0°F (1930) | 55.0°F (2011) | 2.61 in (1986) |
| September 13 | 102.0°F (1930) | 53.1°F (1940) | 3.00 in (1978) |
| September 14 | 102.0°F (1930) | 51.1°F (1945) | 1.50 in (1994) |
| September 15 | 102.0°F (1965) | 50.0°F (1945) | 2.14 in (1919) |
| September 16 | 102.0°F (1965) | 52.0°F (1989) | 1.46 in (1929) |
| September 17 | 100.9°F (1965) | 53.1°F (1994) | 2.30 in (2012) |
| September 18 | 100.9°F (1949) | 46.0°F (1903) | 1.54 in (2014) |
| September 19 | 100.9°F (1950) | 45.0°F (1981) | 2.82 in (1958) |
| September 20 | 104.0°F (1947) | 44.1°F (1981) | 1.10 in (2002) |
| September 21 | 100.0°F (1999) | 44.1°F (1894) | 3.43 in (1967) |
| September 22 | 100.9°F (1944) | 43.0°F (1983) | 3.58 in (1967) |
| September 23 | 99.0°F (1944) | 43.0°F (1983) | 2.75 in (1957) |
| September 24 | 99.0°F (1931) | 48.0°F (1897) | 0.96 in (1932) |
| September 25 | 99.0°F (1931) | 48.9°F (1994) | 2.32 in (1935) |
| September 26 | 104.0°F (2005) | 46.0°F (2000) | 3.82 in (2016) |
| September 27 | 102.9°F (1953) | 43.0°F (1942) | 6.44 in (1973) |
| September 28 | 102.9°F (2005) | 46.0°F (1942) | 2.18 in (1976) |
| September 29 | 102.9°F (2005) | 44.1°F (1967) | 4.00 in (2013) |
| September 30 | 99.0°F (1938) | 44.1°F (1967) | 1.00 in (1913) |