September weather in Mobile, AL
The average temperature in Mobile in September is 80.3°F (71.8°F–88.8°F). Average precipitation: 4.47 inches.
September is a fall month in Mobile, and is warmer than the annual average of 69.1°F. Daily temperatures swing about 17°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 12h 11m. For travel, September is hot.
Avg High
88.8°F
Avg Low
71.8°F
Precipitation
4.47 in
Daylight
12h 11m
September records in Mobile
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2020) | 69.1°F (1954) | 3.01 in (2008) |
| September 2 | 99.0°F (2024) | 68.0°F (1954) | 5.39 in (1950) |
| September 3 | 97.0°F (2019) | 66.0°F (2025) | 1.33 in (1949) |
| September 4 | 100.9°F (2019) | 61.0°F (1952) | 2.98 in (1949) |
| September 5 | 100.0°F (2019) | 64.0°F (2011) | 3.02 in (2012) |
| September 6 | 98.1°F (2019) | 61.0°F (2011) | 6.31 in (1967) |
| September 7 | 97.0°F (2023) | 57.9°F (2011) | 1.83 in (2000) |
| September 8 | 99.0°F (2019) | 60.1°F (2011) | 1.60 in (1958) |
| September 9 | 95.0°F (1954) | 61.0°F (2011) | 1.17 in (1960) |
| September 10 | 98.1°F (1954) | 61.0°F (1999) | 3.45 in (1951) |
| September 11 | 95.0°F (2019) | 59.0°F (1956) | 0.80 in (2024) |
| September 12 | 98.1°F (2019) | 61.0°F (1956) | 5.11 in (1998) |
| September 13 | 97.0°F (2019) | 57.0°F (2015) | 1.99 in (1952) |
| September 14 | 95.0°F (1954) | 54.0°F (2015) | 1.51 in (2009) |
| September 15 | 98.1°F (2018) | 60.1°F (1964) | 2.48 in (2020) |
| September 16 | 95.0°F (2018) | 57.0°F (1961) | 3.08 in (1954) |
| September 17 | 96.1°F (2019) | 57.9°F (1999) | 1.43 in (1968) |
| September 18 | 97.0°F (2019) | 55.0°F (1961) | 5.48 in (1957) |
| September 19 | 96.1°F (2005) | 61.0°F (1961) | 3.00 in (2019) |
| September 20 | 96.1°F (2005) | 57.9°F (2006) | 3.47 in (1949) |
| September 21 | 97.0°F (1997) | 57.0°F (2006) | 1.66 in (1951) |
| September 22 | 95.0°F (2022) | 53.1°F (1999) | 2.44 in (2002) |
| September 23 | 93.0°F (2000) | 48.9°F (1999) | 2.11 in (1956) |
| September 24 | 93.9°F (2022) | 54.0°F (1999) | 3.99 in (1956) |
| September 25 | 91.9°F (1955) | 54.0°F (2001) | 5.58 in (2002) |
| September 26 | 96.1°F (2019) | 51.1°F (2001) | 2.93 in (2010) |
| September 27 | 93.9°F (1954) | 48.0°F (2001) | 3.17 in (2015) |
| September 28 | 91.9°F (1953) | 53.1°F (2001) | 2.90 in (2011) |
| September 29 | 93.0°F (2017) | 52.0°F (2003) | 2.70 in (1965) |
| September 30 | 93.9°F (2017) | 51.1°F (1949) | 11.84 in (1965) |