September weather in Avalon, CA
The average temperature in Avalon in September is 70.5°F (62.7°F–78.3°F). Average precipitation: 0.12 inches.
September is a fall month in Avalon, and is warmer than the annual average of 61.2°F. Daily temperatures swing about 15.6°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 12h 12m. For travel, September is one of the best months of the year to visit.
Avg High
78.3°F
Avg Low
62.7°F
Precipitation
0.12 in
Daylight
12h 12m
September records in Avalon
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 105.1°F (2022) | 54.0°F (1950) | 0.01 in (2005) |
| September 2 | 100.9°F (2017) | 52.0°F (1951) | 0.01 in (2000) |
| September 3 | 98.1°F (1948) | 53.1°F (1951) | 0.01 in (2005) |
| September 4 | 100.0°F (2022) | 54.0°F (1949) | 1.04 in (1963) |
| September 5 | 102.0°F (2020) | 53.1°F (1963) | 0.01 in (2012) |
| September 6 | 109.9°F (2020) | 50.0°F (1948) | 0.01 in (2010) |
| September 7 | 98.1°F (1949) | 50.0°F (1948) | 0.00 in (1948) |
| September 8 | 98.1°F (2024) | 54.0°F (1950) | 0.00 in (1948) |
| September 9 | 97.0°F (2024) | 52.0°F (2000) | 0.67 in (2022) |
| September 10 | 97.0°F (1948) | 51.1°F (1952) | 0.05 in (2022) |
| September 11 | 102.0°F (1948) | 51.1°F (1952) | 0.02 in (2023) |
| September 12 | 98.1°F (1963) | 53.1°F (1952) | 0.05 in (2012) |
| September 13 | 93.9°F (1948) | 53.1°F (1951) | 0.05 in (2016) |
| September 14 | 98.1°F (1948) | 53.1°F (1950) | 0.01 in (2000) |
| September 15 | 98.1°F (2012) | 51.1°F (2010) | 0.81 in (2015) |
| September 16 | 96.1°F (2014) | 54.0°F (1950) | 0.06 in (1965) |
| September 17 | 91.9°F (1951) | 53.1°F (1950) | 1.16 in (1963) |
| September 18 | 99.0°F (2016) | 53.1°F (1950) | 0.01 in (2011) |
| September 19 | 96.1°F (2016) | 52.0°F (1950) | 0.09 in (1963) |
| September 20 | 93.9°F (2015) | 52.0°F (2007) | 0.01 in (1952) |
| September 21 | 97.0°F (2003) | 51.1°F (2010) | 0.05 in (2007) |
| September 22 | 98.1°F (2009) | 51.1°F (2010) | 0.09 in (2000) |
| September 23 | 99.0°F (1949) | 52.0°F (2007) | 0.02 in (2000) |
| September 24 | 96.1°F (2009) | 52.0°F (1948) | 0.05 in (1964) |
| September 25 | 100.0°F (1963) | 48.0°F (1948) | 0.01 in (2005) |
| September 26 | 100.9°F (1963) | 52.0°F (1948) | 0.01 in (1967) |
| September 27 | 104.0°F (2010) | 51.1°F (2024) | 0.00 in (1948) |
| September 28 | 100.0°F (1963) | 48.9°F (2024) | 0.19 in (2019) |
| September 29 | 97.0°F (1963) | 51.1°F (2024) | 0.01 in (2000) |
| September 30 | 100.9°F (2020) | 52.0°F (1950) | 0.04 in (2011) |