September weather in Hilton Head Island, SC
The average temperature in Hilton Head Island in September is 77.8°F (69.6°F–85.9°F). Average precipitation: inches.
September is a fall month in Hilton Head Island, and is warmer than the annual average of 67.8°F. Daily temperatures swing about 16.3°F between overnight low and afternoon high. Daylight averages about 12h 11m. For travel, September is a comfortable month to visit.
Avg High
85.9°F
Avg Low
69.6°F
Precipitation
in
Daylight
12h 11m
September records in Hilton Head Island
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1998) | 55.0°F (1936) | 3.15 in (1969) |
| September 2 | 100.0°F (1944) | 55.0°F (1936) | 2.66 in (1975) |
| September 3 | 100.9°F (1944) | 59.0°F (1954) | 3.88 in (1994) |
| September 4 | 100.9°F (1944) | 62.1°F (1994) | 3.30 in (1945) |
| September 5 | 100.0°F (1921) | 59.0°F (1938) | 4.12 in (1987) |
| September 6 | 100.0°F (1921) | 57.9°F (1950) | 4.98 in (1933) |
| September 7 | 100.0°F (1921) | 60.1°F (1997) | 2.43 in (1950) |
| September 8 | 100.0°F (1939) | 57.0°F (1932) | 3.05 in (1993) |
| September 9 | 100.0°F (1939) | 54.0°F (1956) | 3.03 in (1988) |
| September 10 | 100.0°F (1939) | 52.0°F (1956) | 3.56 in (1964) |
| September 11 | 98.1°F (1933) | 52.0°F (1956) | 3.45 in (1960) |
| September 12 | 98.1°F (1933) | 51.1°F (1917) | 2.00 in (1897) |
| September 13 | 97.0°F (1933) | 55.0°F (1956) | 1.74 in (1893) |
| September 14 | 96.1°F (1938) | 53.1°F (1964) | 3.69 in (1976) |
| September 15 | 97.0°F (1927) | 54.0°F (1967) | 3.05 in (1903) |
| September 16 | 99.0°F (1927) | 54.0°F (1967) | 4.37 in (1924) |
| September 17 | 97.0°F (2005) | 55.9°F (1961) | 4.35 in (1930) |
| September 18 | 97.0°F (2005) | 55.9°F (1917) | 5.81 in (1928) |
| September 19 | 100.9°F (1931) | 52.0°F (1938) | 1.93 in (1971) |
| September 20 | 100.0°F (1942) | 55.0°F (1951) | 2.76 in (1998) |
| September 21 | 95.0°F (1997) | 51.1°F (1929) | 2.30 in (1952) |
| September 22 | 93.0°F (1921) | 50.0°F (1976) | 2.51 in (1912) |
| September 23 | 95.0°F (1921) | 51.1°F (1938) | 1.20 in (1947) |
| September 24 | 95.0°F (1931) | 46.0°F (1967) | 5.56 in (1947) |
| September 25 | 97.0°F (1931) | 53.1°F (1928) | 2.00 in (1956) |
| September 26 | 93.9°F (1931) | 52.0°F (1956) | 2.15 in (1953) |
| September 27 | 93.0°F (1958) | 52.0°F (1940) | 4.20 in (1894) |
| September 28 | 98.1°F (1900) | 50.0°F (1962) | 1.80 in (1938) |
| September 29 | 95.0°F (1939) | 46.9°F (1942) | 6.10 in (1959) |
| September 30 | 96.1°F (1904) | 43.0°F (1967) | 2.30 in (1920) |