September weather in Fernandina Beach, FL
The average temperature in Fernandina Beach in September is 79.6°F (73.2°F–86.0°F). Average precipitation: 7.19 inches.
September is a fall month in Fernandina Beach, and is warmer than the annual average of 70°F. Daily temperatures swing about 12.8°F between overnight low and afternoon high. Expect about 13 days with precipitation. Daylight averages about 12h 11m. For travel, September is a wet month.
Avg High
86.0°F
Avg Low
73.2°F
Precipitation
7.19 in
Daylight
12h 11m
September records in Fernandina Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1970) | 64.9°F (1966) | 5.19 in (1985) |
| September 2 | 96.1°F (1970) | 64.9°F (1999) | 3.50 in (1929) |
| September 3 | 97.0°F (1912) | 64.9°F (1934) | 2.31 in (1969) |
| September 4 | 99.0°F (1944) | 64.0°F (1968) | 3.75 in (1976) |
| September 5 | 102.0°F (1944) | 64.0°F (1967) | 3.87 in (1933) |
| September 6 | 99.0°F (1941) | 64.9°F (1967) | 8.25 in (1950) |
| September 7 | 96.1°F (1944) | 66.9°F (1966) | 5.76 in (1912) |
| September 8 | 98.1°F (1939) | 66.9°F (1966) | 3.18 in (1904) |
| September 9 | 99.0°F (1925) | 64.0°F (1932) | 5.60 in (1908) |
| September 10 | 100.0°F (1939) | 57.0°F (2017) | 2.57 in (1964) |
| September 11 | 98.1°F (1933) | 64.0°F (1914) | 12.00 in (2017) |
| September 12 | 97.0°F (1920) | 64.0°F (1917) | 4.56 in (1941) |
| September 13 | 97.0°F (1920) | 62.1°F (1917) | 7.40 in (1932) |
| September 14 | 96.1°F (1920) | 61.0°F (1956) | 2.90 in (1909) |
| September 15 | 97.0°F (1927) | 64.0°F (1913) | 4.39 in (1979) |
| September 16 | 99.0°F (1927) | 53.1°F (1976) | 3.99 in (1946) |
| September 17 | 96.1°F (1925) | 59.0°F (1967) | 5.03 in (1928) |
| September 18 | 99.0°F (1988) | 61.0°F (1981) | 2.53 in (1975) |
| September 19 | 98.1°F (1933) | 52.0°F (1981) | 3.40 in (1929) |
| September 20 | 99.0°F (1933) | 55.0°F (1981) | 4.77 in (1939) |
| September 21 | 99.0°F (1925) | 54.0°F (1897) | 2.30 in (1969) |
| September 22 | 97.0°F (1931) | 48.9°F (1897) | 12.40 in (1897) |
| September 23 | 96.1°F (1925) | 57.0°F (1966) | 4.90 in (1947) |
| September 24 | 96.1°F (1925) | 54.0°F (1897) | 3.80 in (1948) |
| September 25 | 96.1°F (1931) | 48.9°F (1982) | 9.00 in (1894) |
| September 26 | 96.1°F (1961) | 57.9°F (1956) | 7.05 in (1908) |
| September 27 | 93.0°F (1904) | 53.1°F (1956) | 3.44 in (1965) |
| September 28 | 93.9°F (1970) | 59.0°F (1909) | 2.17 in (1984) |
| September 29 | 91.0°F (1913) | 55.0°F (1962) | 3.82 in (1897) |
| September 30 | 96.1°F (1959) | 53.1°F (1967) | 3.77 in (1937) |