September weather in Dauphin Island, AL
The average temperature in Dauphin Island in September is 80.3°F (75.5°F–85.2°F). Average precipitation: 5.24 inches.
September is a fall month in Dauphin Island, and is warmer than the annual average of 69.2°F. Daily temperatures swing about 9.7°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 10m. For travel, September is a wet month.
Avg High
85.2°F
Avg Low
75.5°F
Precipitation
5.24 in
Daylight
12h 10m
September records in Dauphin Island
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.0°F (1989) | 68.0°F (1986) | 2.65 in (1986) |
| September 2 | 95.0°F (2024) | 72.0°F (1989) | 2.09 in (1993) |
| September 3 | 95.0°F (1989) | 73.0°F (1998) | 2.63 in (2011) |
| September 4 | 95.0°F (2024) | 72.0°F (2001) | 4.11 in (2011) |
| September 5 | 96.1°F (2019) | 72.0°F (1984) | 3.81 in (2012) |
| September 6 | 95.0°F (2000) | 64.0°F (2011) | 1.95 in (1975) |
| September 7 | 93.0°F (2015) | 64.0°F (2011) | 3.79 in (1993) |
| September 8 | 93.0°F (1980) | 66.9°F (1988) | 2.68 in (2000) |
| September 9 | 97.0°F (2019) | 66.9°F (1988) | 0.78 in (2000) |
| September 10 | 93.0°F (1980) | 69.1°F (1988) | 2.49 in (1988) |
| September 11 | 91.9°F (1980) | 66.9°F (2017) | 0.74 in (1998) |
| September 12 | 93.0°F (2019) | 66.9°F (2017) | 1.89 in (2009) |
| September 13 | 93.9°F (2019) | 68.0°F (2017) | 8.45 in (1979) |
| September 14 | 93.9°F (2019) | 52.0°F (1976) | 2.67 in (2002) |
| September 15 | 91.0°F (1978) | 69.1°F (1975) | 3.62 in (2021) |
| September 16 | 91.9°F (1980) | 64.9°F (1985) | 2.30 in (2021) |
| September 17 | 91.9°F (2019) | 68.0°F (2000) | 2.41 in (2016) |
| September 18 | 91.0°F (1982) | 63.0°F (1981) | 2.11 in (2021) |
| September 19 | 93.9°F (2019) | 62.1°F (1981) | 0.35 in (1992) |
| September 20 | 91.9°F (2005) | 57.0°F (1991) | 4.30 in (2019) |
| September 21 | 95.0°F (2005) | 64.0°F (1981) | 0.67 in (1998) |
| September 22 | 93.0°F (1997) | 61.0°F (1982) | 5.48 in (2003) |
| September 23 | 93.9°F (2022) | 62.1°F (1975) | 5.22 in (1975) |
| September 24 | 93.0°F (2024) | 57.9°F (1975) | 2.20 in (1976) |
| September 25 | 95.0°F (2025) | 57.0°F (1975) | 4.56 in (2002) |
| September 26 | 90.0°F (1980) | 59.0°F (2000) | 2.42 in (2002) |
| September 27 | 96.1°F (2025) | 59.0°F (2000) | 0.86 in (1992) |
| September 28 | 90.0°F (1977) | 63.0°F (1975) | 6.91 in (2015) |
| September 29 | 90.0°F (1980) | 62.1°F (2022) | 1.98 in (2021) |
| September 30 | 90.0°F (1977) | 62.1°F (2022) | 3.82 in (1988) |