September weather in Gatlinburg, TN
The average temperature in Gatlinburg in September is 66.8°F (56.1°F–77.5°F). Average precipitation: 4.34 inches.
September is a fall month in Gatlinburg, and is warmer than the annual average of 55.4°F. Daily temperatures swing about 21.4°F between overnight low and afternoon high. Expect about 11 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
77.5°F
Avg Low
56.1°F
Precipitation
4.34 in
Daylight
12h 13m
September records in Gatlinburg
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (1953) | 45.0°F (1954) | 2.20 in (1983) |
| September 2 | 96.1°F (1925) | 44.1°F (1946) | 2.30 in (1982) |
| September 3 | 100.0°F (1925) | 39.9°F (1946) | 1.80 in (1978) |
| September 4 | 100.9°F (1925) | 39.9°F (1952) | 1.66 in (1933) |
| September 5 | 102.0°F (1925) | 43.0°F (1997) | 0.93 in (1972) |
| September 6 | 100.9°F (1925) | 39.9°F (1950) | 4.50 in (2011) |
| September 7 | 100.0°F (1954) | 45.0°F (1950) | 1.70 in (1956) |
| September 8 | 95.0°F (1941) | 42.1°F (1951) | 2.77 in (1977) |
| September 9 | 96.1°F (1954) | 41.0°F (1956) | 2.61 in (1924) |
| September 10 | 95.0°F (1941) | 36.0°F (1943) | 1.90 in (1973) |
| September 11 | 91.9°F (1965) | 39.0°F (1952) | 2.00 in (1960) |
| September 12 | 93.9°F (1946) | 39.0°F (1976) | 1.21 in (2010) |
| September 13 | 95.0°F (1962) | 37.9°F (1940) | 1.73 in (1990) |
| September 14 | 95.0°F (1998) | 35.1°F (1953) | 2.04 in (1945) |
| September 15 | 95.0°F (1998) | 39.9°F (1975) | 1.20 in (1952) |
| September 16 | 93.9°F (1955) | 37.0°F (1961) | 1.90 in (1981) |
| September 17 | 93.9°F (1954) | 37.9°F (1961) | 2.60 in (2004) |
| September 18 | 95.0°F (1927) | 37.0°F (1961) | 1.56 in (1972) |
| September 19 | 96.1°F (1954) | 39.0°F (1981) | 1.40 in (2012) |
| September 20 | 95.0°F (1925) | 39.0°F (1981) | 1.73 in (1943) |
| September 21 | 95.0°F (1955) | 34.0°F (1956) | 1.40 in (1954) |
| September 22 | 95.0°F (1955) | 35.1°F (1953) | 3.05 in (1978) |
| September 23 | 93.0°F (1955) | 33.1°F (1953) | 1.85 in (1989) |
| September 24 | 91.9°F (1961) | 35.1°F (1963) | 1.60 in (1956) |
| September 25 | 91.0°F (1970) | 36.0°F (1942) | 2.75 in (1997) |
| September 26 | 91.9°F (1946) | 35.1°F (1983) | 3.23 in (2024) |
| September 27 | 90.0°F (1954) | 30.9°F (1940) | 3.17 in (2024) |
| September 28 | 93.9°F (1959) | 30.0°F (1940) | 1.65 in (2025) |
| September 29 | 91.9°F (1954) | 27.0°F (1942) | 1.48 in (1944) |
| September 30 | 93.0°F (1954) | 30.0°F (1940) | 2.10 in (1972) |