September weather in Cerritos, CA
The average temperature in Cerritos in September is 75.0°F (64.6°F–85.4°F). Average precipitation: 0.14 inches.
September is a fall month in Cerritos, and is warmer than the annual average of 66.2°F. Daily temperatures swing about 20.8°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 12h 12m. For travel, September is a comfortable month to visit.
Avg High
85.4°F
Avg Low
64.6°F
Precipitation
0.14 in
Daylight
12h 12m
September records in Cerritos
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 106.0°F (1998) | 59.0°F (2005) | 0.00 in (1998) |
| September 2 | 102.9°F (2007) | 57.0°F (2010) | 0.00 in (1998) |
| September 3 | 108.0°F (2007) | 57.9°F (2005) | 0.16 in (2017) |
| September 4 | 111.0°F (2022) | 57.0°F (2005) | 0.00 in (1998) |
| September 5 | 109.9°F (2020) | 55.0°F (2005) | 0.06 in (2011) |
| September 6 | 113.0°F (2024) | 55.9°F (2005) | 0.00 in (1998) |
| September 7 | 100.9°F (2011) | 57.9°F (2005) | 0.00 in (1998) |
| September 8 | 108.0°F (2024) | 55.9°F (2002) | 0.02 in (2014) |
| September 9 | 104.0°F (2015) | 57.9°F (2002) | 0.23 in (2022) |
| September 10 | 99.0°F (2015) | 55.9°F (2010) | 0.01 in (2023) |
| September 11 | 98.1°F (2000) | 55.9°F (2010) | 0.00 in (1998) |
| September 12 | 98.1°F (2014) | 57.0°F (2005) | 0.00 in (1998) |
| September 13 | 100.0°F (2014) | 57.0°F (2001) | 0.00 in (1998) |
| September 14 | 108.0°F (2012) | 57.0°F (2010) | 0.00 in (1998) |
| September 15 | 105.1°F (2012) | 55.9°F (2010) | 1.31 in (2015) |
| September 16 | 102.0°F (2014) | 55.9°F (2010) | 0.00 in (1998) |
| September 17 | 100.0°F (2020) | 55.0°F (2006) | 0.00 in (1998) |
| September 18 | 97.0°F (2020) | 55.0°F (2010) | 0.04 in (2025) |
| September 19 | 96.1°F (2016) | 57.0°F (2006) | 0.07 in (2005) |
| September 20 | 104.0°F (2015) | 55.0°F (1999) | 0.36 in (2005) |
| September 21 | 102.9°F (2021) | 55.0°F (2004) | 0.42 in (2007) |
| September 22 | 98.1°F (2021) | 55.9°F (2005) | 0.49 in (2007) |
| September 23 | 104.0°F (2009) | 55.0°F (2010) | 0.02 in (2000) |
| September 24 | 97.0°F (2010) | 55.9°F (2010) | 0.01 in (2006) |
| September 25 | 102.0°F (2016) | 55.9°F (2017) | 0.00 in (1998) |
| September 26 | 107.1°F (2010) | 55.9°F (2005) | 0.01 in (2007) |
| September 27 | 111.9°F (2010) | 55.9°F (2013) | 0.01 in (2006) |
| September 28 | 99.0°F (2005) | 54.0°F (2013) | 0.01 in (2001) |
| September 29 | 104.0°F (1999) | 55.9°F (2006) | 0.01 in (2006) |
| September 30 | 109.9°F (2020) | 54.0°F (2019) | 0.01 in (2023) |