September weather in Sinton, TX
The average temperature in Sinton in September is 80.9°F (71.4°F–90.3°F). Average precipitation: 5.28 inches.
September is a fall month in Sinton, and is warmer than the annual average of 71.5°F. Daily temperatures swing about 18.9°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 9m. For travel, September is a wet month.
Avg High
90.3°F
Avg Low
71.4°F
Precipitation
5.28 in
Daylight
12h 9m
September records in Sinton
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (2000) | 68.0°F (1978) | 1.63 in (1970) |
| September 2 | 102.0°F (2011) | 70.0°F (1976) | 2.10 in (1984) |
| September 3 | 100.9°F (2011) | 68.0°F (1974) | 2.52 in (1967) |
| September 4 | 100.9°F (2000) | 61.0°F (1974) | 2.00 in (1967) |
| September 5 | 108.0°F (2000) | 55.0°F (1974) | 1.62 in (1933) |
| September 6 | 109.0°F (2000) | 55.0°F (1974) | 4.70 in (1955) |
| September 7 | 99.0°F (1963) | 59.0°F (2017) | 2.82 in (1955) |
| September 8 | 98.1°F (1963) | 61.0°F (2017) | 3.30 in (1977) |
| September 9 | 99.0°F (1963) | 64.0°F (2017) | 3.90 in (2002) |
| September 10 | 104.0°F (1965) | 63.0°F (2011) | 2.36 in (2009) |
| September 11 | 102.0°F (1965) | 61.0°F (2017) | 11.84 in (1952) |
| September 12 | 99.0°F (1973) | 55.9°F (1959) | 5.80 in (1991) |
| September 13 | 100.9°F (1965) | 63.0°F (1960) | 4.80 in (1936) |
| September 14 | 100.9°F (2011) | 60.1°F (1960) | 4.19 in (1951) |
| September 15 | 98.1°F (1965) | 62.1°F (1960) | 3.38 in (1981) |
| September 16 | 98.1°F (1965) | 57.9°F (1979) | 2.85 in (2002) |
| September 17 | 100.0°F (1962) | 55.9°F (1979) | 3.00 in (2010) |
| September 18 | 96.1°F (1959) | 52.0°F (1981) | 1.55 in (1971) |
| September 19 | 99.0°F (1977) | 52.0°F (1981) | 6.03 in (2010) |
| September 20 | 98.1°F (1977) | 57.9°F (1971) | 6.05 in (1967) |
| September 21 | 96.1°F (1980) | 57.9°F (1976) | 9.16 in (1967) |
| September 22 | 98.1°F (1965) | 54.0°F (1983) | 6.02 in (1969) |
| September 23 | 95.0°F (1960) | 53.1°F (1994) | 2.92 in (1998) |
| September 24 | 95.0°F (1977) | 53.1°F (1994) | 2.02 in (1972) |
| September 25 | 97.0°F (2011) | 52.0°F (1989) | 1.91 in (1935) |
| September 26 | 102.9°F (2011) | 51.1°F (2000) | 1.78 in (1944) |
| September 27 | 98.1°F (2011) | 51.1°F (2000) | 5.03 in (1980) |
| September 28 | 100.0°F (2011) | 52.0°F (2000) | 4.49 in (1946) |
| September 29 | 97.0°F (1966) | 50.0°F (1967) | 1.90 in (1921) |
| September 30 | 97.0°F (1998) | 50.0°F (1984) | 3.01 in (1954) |