September weather in South Haven, MI
The average temperature in South Haven in September is 65.5°F (57.2°F–73.7°F). Average precipitation: 3.19 inches.
September is a fall month in South Haven, and is warmer than the annual average of 50.8°F. Daily temperatures swing about 16.5°F between overnight low and afternoon high. Daylight averages about 12h 16m. For travel, September is one of the best months of the year to visit.
Avg High
73.7°F
Avg Low
57.2°F
Precipitation
3.19 in
Daylight
12h 16m
September records in South Haven
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 90.0°F (1900) | 41.0°F (1896) | 1.91 in (1989) |
| September 2 | 91.9°F (1953) | 32.0°F (1896) | 1.75 in (1905) |
| September 3 | 93.9°F (1953) | 39.0°F (1908) | 1.14 in (1941) |
| September 4 | 91.9°F (1933) | 39.0°F (1974) | 1.60 in (1937) |
| September 5 | 96.1°F (1898) | 41.0°F (1904) | 2.62 in (2008) |
| September 6 | 95.0°F (1954) | 37.0°F (1924) | 1.10 in (1944) |
| September 7 | 96.1°F (1898) | 39.9°F (1909) | 1.80 in (1922) |
| September 8 | 93.9°F (1922) | 37.9°F (1951) | 1.10 in (2017) |
| September 9 | 93.0°F (1897) | 39.9°F (1979) | 0.90 in (1985) |
| September 10 | 93.0°F (1897) | 36.0°F (1935) | 1.88 in (1922) |
| September 11 | 90.0°F (1900) | 37.0°F (1917) | 1.73 in (2016) |
| September 12 | 89.1°F (1895) | 37.0°F (1917) | 3.47 in (1978) |
| September 13 | 93.9°F (1939) | 37.9°F (1937) | 4.05 in (1978) |
| September 14 | 93.9°F (1939) | 37.0°F (1899) | 2.40 in (2008) |
| September 15 | 97.0°F (1939) | 36.0°F (1923) | 2.92 in (1898) |
| September 16 | 95.0°F (1939) | 35.1°F (1959) | 2.70 in (1936) |
| September 17 | 87.1°F (1946) | 33.1°F (1900) | 1.73 in (1980) |
| September 18 | 88.0°F (2007) | 35.1°F (1929) | 2.00 in (1911) |
| September 19 | 88.0°F (2007) | 34.0°F (1979) | 0.88 in (1971) |
| September 20 | 89.1°F (1895) | 35.1°F (1897) | 1.27 in (1923) |
| September 21 | 89.1°F (1895) | 32.0°F (1904) | 2.83 in (1947) |
| September 22 | 88.0°F (1920) | 30.9°F (1904) | 1.24 in (1981) |
| September 23 | 91.0°F (1930) | 34.0°F (1896) | 1.58 in (1926) |
| September 24 | 90.0°F (2007) | 30.0°F (1950) | 1.87 in (1977) |
| September 25 | 90.0°F (2007) | 30.9°F (1947) | 5.02 in (1986) |
| September 26 | 88.0°F (1920) | 30.0°F (1947) | 1.47 in (1935) |
| September 27 | 86.0°F (1920) | 30.9°F (1965) | 2.05 in (1902) |
| September 28 | 86.0°F (1971) | 33.1°F (1976) | 1.21 in (1927) |
| September 29 | 93.0°F (1953) | 26.1°F (1942) | 2.00 in (1896) |
| September 30 | 93.0°F (1953) | 28.9°F (1947) | 1.37 in (1981) |