September weather in Southport, IN
The average temperature in Southport in September is 65.9°F (55.1°F–76.8°F). Average precipitation: 3.21 inches.
September is a fall month in Southport, and is warmer than the annual average of 51.9°F. Daily temperatures swing about 21.7°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 12h 15m. For travel, September is one of the best months of the year to visit.
Avg High
76.8°F
Avg Low
55.1°F
Precipitation
3.21 in
Daylight
12h 15m
September records in Southport
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 96.1°F (1953) | 46.0°F (1994) | 4.03 in (2003) |
| September 2 | 98.1°F (1953) | 48.0°F (1965) | 1.93 in (1952) |
| September 3 | 100.0°F (1953) | 48.0°F (1952) | 1.79 in (2012) |
| September 4 | 96.1°F (2011) | 41.0°F (1997) | 1.55 in (1966) |
| September 5 | 98.1°F (1954) | 43.0°F (1997) | 0.50 in (1968) |
| September 6 | 100.0°F (1954) | 43.0°F (2000) | 0.21 in (1984) |
| September 7 | 100.0°F (1954) | 43.0°F (1988) | 1.02 in (1983) |
| September 8 | 93.9°F (1964) | 43.0°F (1956) | 3.06 in (2012) |
| September 9 | 95.0°F (1960) | 43.0°F (1986) | 1.30 in (1960) |
| September 10 | 95.0°F (1955) | 42.1°F (1993) | 1.06 in (2001) |
| September 11 | 95.0°F (1964) | 45.0°F (1969) | 0.85 in (2000) |
| September 12 | 91.9°F (1952) | 39.9°F (1976) | 1.50 in (1986) |
| September 13 | 91.0°F (1952) | 39.9°F (1975) | 1.41 in (2006) |
| September 14 | 91.0°F (1956) | 39.0°F (1964) | 1.50 in (1973) |
| September 15 | 90.0°F (1991) | 42.1°F (1975) | 1.54 in (1965) |
| September 16 | 90.0°F (1955) | 41.0°F (2000) | 0.52 in (1958) |
| September 17 | 90.0°F (1955) | 41.0°F (1988) | 2.44 in (1996) |
| September 18 | 93.0°F (1955) | 41.0°F (1959) | 1.22 in (1969) |
| September 19 | 95.0°F (1953) | 35.1°F (1991) | 1.80 in (2001) |
| September 20 | 91.9°F (1955) | 37.9°F (2012) | 1.92 in (1966) |
| September 21 | 89.1°F (1978) | 39.0°F (1962) | 1.32 in (2002) |
| September 22 | 91.9°F (1955) | 30.0°F (1995) | 1.97 in (1955) |
| September 23 | 90.0°F (1970) | 34.0°F (1995) | 1.39 in (1955) |
| September 24 | 91.9°F (2010) | 36.0°F (1974) | 2.08 in (1955) |
| September 25 | 91.0°F (2007) | 37.0°F (1989) | 2.03 in (1961) |
| September 26 | 89.1°F (1986) | 36.0°F (1991) | 2.00 in (2005) |
| September 27 | 90.0°F (1986) | 37.0°F (2000) | 1.10 in (2003) |
| September 28 | 89.1°F (1998) | 39.0°F (1989) | 0.88 in (1996) |
| September 29 | 90.0°F (1959) | 30.9°F (1993) | 0.62 in (1974) |
| September 30 | 98.1°F (1953) | 36.0°F (1993) | 2.12 in (1955) |