September weather in Lompoc, CA
The average temperature in Lompoc in September is 64.8°F (54.9°F–74.8°F). Average precipitation: 0.05 inches.
September is a fall month in Lompoc, and is warmer than the annual average of 59.3°F. Daily temperatures swing about 19.9°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 12m. For travel, September is one of the best months of the year to visit.
Avg High
74.8°F
Avg Low
54.9°F
Precipitation
0.05 in
Daylight
12h 12m
September records in Lompoc
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (2017) | 45.0°F (1959) | 0.00 in (1918) |
| September 2 | 98.1°F (2017) | 46.0°F (1954) | 0.11 in (1997) |
| September 3 | 102.9°F (2017) | 45.0°F (1964) | 0.00 in (1950) |
| September 4 | 96.1°F (1961) | 46.0°F (1960) | 0.26 in (1998) |
| September 5 | 97.0°F (2004) | 44.1°F (1960) | 0.76 in (1978) |
| September 6 | 97.0°F (2020) | 44.1°F (1996) | 0.65 in (1978) |
| September 7 | 96.1°F (1958) | 43.0°F (1956) | 0.80 in (1958) |
| September 8 | 95.0°F (1984) | 42.1°F (1964) | 0.02 in (1958) |
| September 9 | 100.0°F (1984) | 41.0°F (1964) | 0.03 in (1982) |
| September 10 | 100.0°F (1984) | 45.0°F (1955) | 0.32 in (1976) |
| September 11 | 96.1°F (1983) | 39.9°F (2024) | 1.15 in (1976) |
| September 12 | 90.0°F (1918) | 42.1°F (1956) | 0.07 in (1984) |
| September 13 | 96.1°F (2019) | 41.0°F (1956) | 0.26 in (1918) |
| September 14 | 90.0°F (2019) | 42.1°F (1955) | 0.09 in (1918) |
| September 15 | 90.0°F (1979) | 43.0°F (1955) | 0.01 in (1991) |
| September 16 | 88.0°F (1958) | 39.0°F (1956) | 0.03 in (1969) |
| September 17 | 91.0°F (1984) | 39.9°F (2020) | 0.13 in (1989) |
| September 18 | 87.1°F (2015) | 41.0°F (1919) | 0.11 in (1963) |
| September 19 | 93.0°F (2015) | 42.1°F (1978) | 2.01 in (2022) |
| September 20 | 89.1°F (1983) | 39.0°F (1987) | 0.31 in (2024) |
| September 21 | 88.0°F (1950) | 41.0°F (1919) | 0.06 in (1967) |
| September 22 | 89.1°F (2004) | 37.9°F (1919) | 0.07 in (2007) |
| September 23 | 99.0°F (1978) | 44.1°F (1919) | 0.11 in (1958) |
| September 24 | 106.0°F (1978) | 39.0°F (1920) | 0.72 in (1986) |
| September 25 | 99.0°F (2016) | 39.9°F (1920) | 0.08 in (1982) |
| September 26 | 102.9°F (2016) | 42.1°F (1920) | 0.22 in (1982) |
| September 27 | 102.0°F (2016) | 42.1°F (2013) | 0.11 in (1918) |
| September 28 | 100.0°F (1997) | 41.0°F (1971) | 0.52 in (1976) |
| September 29 | 97.0°F (1970) | 42.1°F (1974) | 0.62 in (1976) |
| September 30 | 91.9°F (1965) | 36.0°F (1950) | 0.35 in (2023) |