September weather in Encinitas, CA
The average temperature in Encinitas in September is 69.6°F (63.6°F–75.7°F). Average precipitation: 0.11 inches.
September is a fall month in Encinitas, and is warmer than the annual average of 62.5°F. Daily temperatures swing about 12.1°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
75.7°F
Avg Low
63.6°F
Precipitation
0.11 in
Daylight
12h 12m
September records in Encinitas
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 89.1°F (2017) | 59.0°F (2004) | 0.01 in (2004) |
| September 2 | 91.9°F (2007) | 59.0°F (1999) | 0.04 in (2023) |
| September 3 | 95.0°F (1998) | 57.0°F (1999) | 0.38 in (1998) |
| September 4 | 96.1°F (2022) | 57.9°F (2000) | 0.01 in (2010) |
| September 5 | 100.0°F (2004) | 57.0°F (2005) | 0.01 in (2000) |
| September 6 | 100.9°F (2020) | 54.0°F (2005) | 0.01 in (2005) |
| September 7 | 90.0°F (2024) | 61.0°F (2000) | 0.01 in (2008) |
| September 8 | 93.0°F (2022) | 60.1°F (1999) | 0.01 in (2000) |
| September 9 | 91.9°F (2015) | 55.9°F (2000) | 0.28 in (2022) |
| September 10 | 93.9°F (2015) | 57.9°F (2000) | 0.01 in (2000) |
| September 11 | 86.0°F (2015) | 57.9°F (1999) | 0.00 in (1998) |
| September 12 | 88.0°F (2000) | 57.9°F (1999) | 0.01 in (1998) |
| September 13 | 84.9°F (2000) | 57.9°F (2005) | 0.00 in (1998) |
| September 14 | 93.9°F (2012) | 57.0°F (2001) | 0.00 in (1998) |
| September 15 | 100.9°F (2012) | 57.0°F (2016) | 0.76 in (2015) |
| September 16 | 99.0°F (2014) | 55.9°F (2016) | 0.01 in (2007) |
| September 17 | 87.1°F (2014) | 55.9°F (2006) | 0.07 in (2025) |
| September 18 | 89.1°F (2020) | 57.9°F (2005) | 0.15 in (2025) |
| September 19 | 80.1°F (2006) | 57.9°F (1999) | 0.01 in (2000) |
| September 20 | 89.1°F (2015) | 55.9°F (1999) | 0.25 in (2016) |
| September 21 | 89.1°F (2004) | 55.0°F (2007) | 0.08 in (2016) |
| September 22 | 88.0°F (2004) | 55.9°F (2005) | 0.04 in (2000) |
| September 23 | 89.1°F (2009) | -0.8°F (2009) | 0.04 in (2007) |
| September 24 | 84.9°F (2009) | 55.9°F (2017) | 0.10 in (2021) |
| September 25 | 86.0°F (2016) | 55.9°F (2005) | 0.01 in (2000) |
| September 26 | 102.9°F (2016) | 57.9°F (2005) | 0.03 in (1998) |
| September 27 | 108.0°F (2010) | 55.9°F (2013) | 0.01 in (2002) |
| September 28 | 88.0°F (2010) | 55.9°F (1998) | 0.06 in (2007) |
| September 29 | 91.9°F (1999) | 54.0°F (2001) | 0.01 in (2006) |
| September 30 | 91.9°F (1999) | 55.0°F (2019) | 0.22 in (2010) |