September weather in Fort Myers, FL
The average temperature in Fort Myers in September is 82.2°F (74.3°F–90.0°F). Average precipitation: 9.00 inches.
September is a fall month in Fort Myers, and is warmer than the annual average of 75.4°F. Daily temperatures swing about 15.7°F between overnight low and afternoon high. Expect about 16 days with precipitation. Daylight averages about 12h 9m. For travel, September is a wet month.
Avg High
90.0°F
Avg Low
74.3°F
Precipitation
9.00 in
Daylight
12h 9m
September records in Fort Myers
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (2014) | 68.0°F (1917) | 3.34 in (1995) |
| September 2 | 95.0°F (1952) | 69.1°F (1917) | 5.55 in (1969) |
| September 3 | 98.1°F (1912) | 70.0°F (1911) | 4.58 in (1935) |
| September 4 | 96.1°F (2022) | 68.0°F (1917) | 5.10 in (1935) |
| September 5 | 96.1°F (2020) | 66.9°F (1917) | 5.56 in (2003) |
| September 6 | 95.0°F (1910) | 64.9°F (1917) | 2.79 in (2001) |
| September 7 | 97.0°F (1996) | 66.9°F (1917) | 3.12 in (2022) |
| September 8 | 96.1°F (1996) | 66.9°F (1917) | 4.14 in (1930) |
| September 9 | 96.1°F (1987) | 68.0°F (1917) | 2.90 in (1986) |
| September 10 | 95.0°F (1925) | 68.0°F (1917) | 4.63 in (1960) |
| September 11 | 96.1°F (1942) | 69.1°F (1914) | 5.55 in (1973) |
| September 12 | 96.1°F (2023) | 69.1°F (1914) | 2.41 in (1968) |
| September 13 | 95.0°F (1991) | 66.9°F (1917) | 1.90 in (2020) |
| September 14 | 95.0°F (1984) | 68.0°F (1917) | 5.35 in (1979) |
| September 15 | 96.1°F (1995) | 66.9°F (1918) | 2.98 in (1970) |
| September 16 | 95.0°F (1942) | 66.9°F (1918) | 1.94 in (1939) |
| September 17 | 93.9°F (1943) | 66.9°F (1918) | 6.39 in (2000) |
| September 18 | 96.1°F (1990) | 66.9°F (1956) | 3.98 in (1985) |
| September 19 | 95.0°F (1921) | 66.9°F (1910) | 8.02 in (1926) |
| September 20 | 95.0°F (1980) | 64.9°F (1910) | 2.52 in (1939) |
| September 21 | 96.1°F (1987) | 66.9°F (1910) | 7.78 in (1962) |
| September 22 | 95.0°F (1980) | 63.0°F (1922) | 3.38 in (1948) |
| September 23 | 95.0°F (1997) | 63.0°F (1922) | 3.24 in (2013) |
| September 24 | 96.1°F (1988) | 66.9°F (1916) | 2.46 in (2013) |
| September 25 | 95.0°F (1972) | 64.0°F (1916) | 3.42 in (1894) |
| September 26 | 95.0°F (1980) | 64.0°F (1903) | 2.28 in (1977) |
| September 27 | 96.1°F (1980) | 64.0°F (1991) | 6.12 in (1997) |
| September 28 | 95.0°F (1925) | 66.9°F (1909) | 2.24 in (2024) |
| September 29 | 93.0°F (1968) | 66.0°F (1931) | 4.54 in (1929) |
| September 30 | 93.9°F (1988) | 66.0°F (1919) | 2.10 in (1918) |