September weather in Valparaiso, FL
The average temperature in Valparaiso in September is 77.3°F (67.6°F–87.1°F). Average precipitation: 6.97 inches.
September is a fall month in Valparaiso, and is warmer than the annual average of 66.2°F. Daily temperatures swing about 19.5°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 10m. For travel, September is a wet month.
Avg High
87.1°F
Avg Low
67.6°F
Precipitation
6.97 in
Daylight
12h 10m
September records in Valparaiso
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 102.0°F (1954) | 62.1°F (1939) | 2.10 in (2021) |
| September 2 | 97.0°F (1954) | 61.0°F (1968) | 2.00 in (2023) |
| September 3 | 98.1°F (1989) | 60.1°F (1954) | 8.25 in (1998) |
| September 4 | 97.0°F (1954) | 59.0°F (1952) | 2.25 in (2011) |
| September 5 | 97.0°F (1954) | 54.0°F (1981) | 4.10 in (2012) |
| September 6 | 98.1°F (2019) | 57.9°F (2019) | 1.50 in (2011) |
| September 7 | 98.1°F (2019) | 55.9°F (2011) | 3.34 in (1967) |
| September 8 | 97.0°F (2019) | 55.9°F (1953) | 5.10 in (1957) |
| September 9 | 96.1°F (1989) | 55.9°F (1950) | 6.35 in (1947) |
| September 10 | 100.0°F (1954) | 54.0°F (1956) | 2.15 in (1931) |
| September 11 | 96.1°F (1985) | 52.0°F (1976) | 7.48 in (1944) |
| September 12 | 98.1°F (1985) | 50.0°F (1956) | 4.87 in (1987) |
| September 13 | 98.1°F (1985) | 55.0°F (1956) | 4.90 in (1958) |
| September 14 | 95.0°F (1954) | 54.0°F (2015) | 6.55 in (1945) |
| September 15 | 96.1°F (1980) | 52.0°F (2015) | 2.42 in (2009) |
| September 16 | 96.1°F (1980) | 54.0°F (1961) | 10.11 in (2020) |
| September 17 | 93.9°F (1982) | 55.0°F (1967) | 2.58 in (2020) |
| September 18 | 98.1°F (2019) | 54.0°F (1961) | 2.30 in (1951) |
| September 19 | 99.0°F (2019) | 48.9°F (1981) | 4.55 in (1957) |
| September 20 | 95.0°F (2025) | 46.9°F (1981) | 2.50 in (1930) |
| September 21 | 95.0°F (1942) | 51.1°F (1938) | 3.75 in (1943) |
| September 22 | 97.0°F (1988) | 48.0°F (1983) | 3.80 in (2013) |
| September 23 | 97.0°F (2022) | 46.9°F (1983) | 2.82 in (1928) |
| September 24 | 93.9°F (1978) | 46.9°F (1982) | 6.40 in (1956) |
| September 25 | 95.0°F (1961) | 48.0°F (1982) | 1.80 in (1956) |
| September 26 | 93.9°F (1961) | 46.9°F (1975) | 4.60 in (2002) |
| September 27 | 96.1°F (2019) | 43.0°F (2001) | 5.28 in (1979) |
| September 28 | 95.0°F (1980) | 44.1°F (2001) | 9.60 in (1998) |
| September 29 | 98.1°F (1986) | 41.0°F (1967) | 6.90 in (1998) |
| September 30 | 93.9°F (1955) | 37.0°F (1967) | 7.65 in (1929) |