September weather in Atlantic City, NJ
The average temperature in Atlantic City in September is 69.3°F (64.6°F–74.0°F). Average precipitation: 3.56 inches.
September is a fall month in Atlantic City, and is warmer than the annual average of 55.5°F. Daily temperatures swing about 9.4°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
74.0°F
Avg Low
64.6°F
Precipitation
3.56 in
Daylight
12h 15m
September records in Atlantic City
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (1941) | 51.1°F (1890) | 2.35 in (2006) |
| September 2 | 91.9°F (1973) | 52.0°F (1892) | 1.43 in (2017) |
| September 3 | 93.0°F (1921) | 48.9°F (1893) | 1.77 in (1992) |
| September 4 | 91.9°F (1985) | 48.0°F (1883) | 2.77 in (1935) |
| September 5 | 93.9°F (1880) | 52.0°F (1877) | 7.52 in (1935) |
| September 6 | 91.9°F (1983) | 46.0°F (1876) | 3.15 in (1908) |
| September 7 | 91.9°F (1881) | 48.0°F (1924) | 1.53 in (1877) |
| September 8 | 93.9°F (1939) | 54.0°F (1892) | 2.24 in (1934) |
| September 9 | 91.9°F (1915) | 48.9°F (1914) | 2.08 in (1894) |
| September 10 | 91.0°F (1906) | 45.0°F (1883) | 4.57 in (2020) |
| September 11 | 93.9°F (1897) | 44.1°F (1917) | 3.52 in (1899) |
| September 12 | 93.0°F (1895) | 45.0°F (1917) | 2.59 in (1883) |
| September 13 | 91.9°F (1952) | 51.1°F (1963) | 2.27 in (1950) |
| September 14 | 90.0°F (1994) | 46.0°F (1911) | 2.85 in (1944) |
| September 15 | 93.0°F (1927) | 42.1°F (1895) | 2.11 in (2011) |
| September 16 | 91.0°F (1998) | 48.9°F (1895) | 1.93 in (1999) |
| September 17 | 90.0°F (1915) | 46.9°F (1959) | 2.33 in (1996) |
| September 18 | 88.0°F (1921) | 44.1°F (1875) | 4.01 in (1936) |
| September 19 | 88.0°F (1947) | 44.1°F (1929) | 4.34 in (1928) |
| September 20 | 86.0°F (1983) | 46.0°F (1897) | 3.24 in (1899) |
| September 21 | 90.0°F (1895) | 41.0°F (1897) | 4.50 in (1938) |
| September 22 | 89.1°F (1895) | 39.0°F (1904) | 1.79 in (1907) |
| September 23 | 87.1°F (2005) | 43.0°F (1947) | 2.88 in (2023) |
| September 24 | 84.9°F (1933) | 42.1°F (1896) | 1.47 in (1909) |
| September 25 | 84.9°F (1930) | 39.9°F (1887) | 2.40 in (2014) |
| September 26 | 84.9°F (1968) | 39.9°F (1887) | 2.33 in (2000) |
| September 27 | 84.9°F (1998) | 41.0°F (1947) | 2.60 in (1958) |
| September 28 | 84.0°F (1998) | 41.0°F (1915) | 1.27 in (1967) |
| September 29 | 86.0°F (1884) | 39.9°F (1888) | 1.22 in (1945) |
| September 30 | 86.0°F (1905) | 37.0°F (1888) | 1.92 in (1964) |