September weather in Fort Pierce, FL
The average temperature in Fort Pierce in September is 80.8°F (74.0°F–87.5°F). Average precipitation: 8.21 inches.
September is a fall month in Fort Pierce, and is warmer than the annual average of 73.5°F. Daily temperatures swing about 13.5°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 12h 9m. For travel, September is a wet month.
Avg High
87.5°F
Avg Low
74.0°F
Precipitation
8.21 in
Daylight
12h 9m
September records in Fort Pierce
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1998) | 68.0°F (1993) | 2.25 in (1915) |
| September 2 | 96.1°F (2005) | 68.0°F (1977) | 2.75 in (1977) |
| September 3 | 96.1°F (1947) | 66.9°F (1992) | 2.04 in (1979) |
| September 4 | 96.1°F (1920) | 68.0°F (1967) | 2.35 in (1945) |
| September 5 | 96.1°F (1920) | 64.9°F (1995) | 2.33 in (1950) |
| September 6 | 96.1°F (1920) | 66.0°F (1995) | 3.30 in (1995) |
| September 7 | 96.1°F (1918) | 64.9°F (1920) | 4.74 in (1995) |
| September 8 | 97.0°F (1993) | 64.0°F (1979) | 1.27 in (2001) |
| September 9 | 96.1°F (1918) | 64.9°F (1920) | 4.78 in (1927) |
| September 10 | 95.0°F (1916) | 66.0°F (1960) | 13.85 in (2017) |
| September 11 | 96.1°F (1917) | 64.9°F (1993) | 7.80 in (2017) |
| September 12 | 96.1°F (1911) | 64.9°F (1993) | 4.10 in (1903) |
| September 13 | 96.1°F (1987) | 68.0°F (1916) | 3.30 in (1994) |
| September 14 | 99.0°F (1944) | 66.9°F (1965) | 2.66 in (1931) |
| September 15 | 95.0°F (1944) | 68.0°F (1965) | 2.39 in (1941) |
| September 16 | 95.0°F (1920) | 66.9°F (1962) | 3.75 in (1945) |
| September 17 | 95.0°F (1981) | 68.0°F (1914) | 4.70 in (2015) |
| September 18 | 96.1°F (1987) | 66.9°F (1951) | 5.95 in (1947) |
| September 19 | 95.0°F (2023) | 64.9°F (1981) | 3.98 in (1994) |
| September 20 | 93.0°F (1982) | 60.1°F (1910) | 6.28 in (1985) |
| September 21 | 93.9°F (1918) | 64.9°F (1910) | 4.70 in (2004) |
| September 22 | 96.1°F (1942) | 66.0°F (1910) | 3.58 in (1918) |
| September 23 | 93.9°F (1942) | 64.9°F (1910) | 3.07 in (1960) |
| September 24 | 95.0°F (1950) | 64.0°F (1981) | 6.62 in (1963) |
| September 25 | 95.0°F (1997) | 62.1°F (1903) | 3.67 in (1960) |
| September 26 | 95.0°F (1908) | 60.1°F (1964) | 7.00 in (2004) |
| September 27 | 93.9°F (1915) | 62.1°F (1956) | 3.30 in (1916) |
| September 28 | 95.0°F (1942) | 64.0°F (1991) | 3.75 in (1949) |
| September 29 | 93.9°F (1942) | 59.0°F (1998) | 4.41 in (1914) |
| September 30 | 93.9°F (1980) | 64.0°F (2022) | 5.33 in (2023) |