October weather in Rancho Santa Margarita, CA
The average temperature in Rancho Santa Margarita in October is 71.1°F (57.8°F–84.3°F). Average precipitation: 0.62 inches.
October is a fall month in Rancho Santa Margarita, and is warmer than the annual average of 66.7°F. Daily temperatures swing about 26.5°F between overnight low and afternoon high. Expect about 2 days with precipitation. Daylight averages about 11h 8m. For travel, October is a comfortable month to visit.
Avg High
84.3°F
Avg Low
57.8°F
Precipitation
0.62 in
Daylight
11h 8m
October records in Rancho Santa Margarita
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 104.0°F (2020) | 50.0°F (2006) | 0.16 in (2023) |
| October 2 | 102.0°F (2014) | 46.9°F (2023) | 0.00 in (2003) |
| October 3 | 105.1°F (2014) | 48.9°F (2023) | 0.00 in (2003) |
| October 4 | 100.0°F (2014) | 46.0°F (2009) | 0.17 in (2018) |
| October 5 | 99.0°F (2014) | 50.0°F (2009) | 0.97 in (2011) |
| October 6 | 98.1°F (2014) | 46.0°F (2011) | 0.50 in (2010) |
| October 7 | 102.0°F (2008) | 46.9°F (2011) | 0.00 in (2003) |
| October 8 | 99.0°F (2008) | 48.0°F (2010) | 0.22 in (2021) |
| October 9 | 105.1°F (2015) | 50.0°F (2006) | 0.12 in (2013) |
| October 10 | 102.0°F (2015) | 48.0°F (2007) | 0.00 in (2003) |
| October 11 | 102.9°F (2015) | 46.9°F (2011) | 0.18 in (2023) |
| October 12 | 102.9°F (2011) | 46.0°F (2009) | 0.06 in (2004) |
| October 13 | 99.0°F (2020) | 46.0°F (2008) | 1.25 in (2018) |
| October 14 | 99.0°F (2020) | 48.0°F (2013) | 1.18 in (2025) |
| October 15 | 97.0°F (2020) | 45.0°F (2018) | 0.50 in (2022) |
| October 16 | 97.0°F (2017) | 51.1°F (2025) | 0.00 in (2003) |
| October 17 | 99.0°F (2012) | 51.1°F (2011) | 0.30 in (2004) |
| October 18 | 95.0°F (2012) | 50.0°F (2006) | 0.29 in (2010) |
| October 19 | 95.0°F (2022) | 52.0°F (2021) | 0.64 in (2010) |
| October 20 | 102.0°F (2016) | 48.9°F (2008) | 3.30 in (2004) |
| October 21 | 97.0°F (2016) | 50.0°F (2004) | 0.16 in (2004) |
| October 22 | 102.0°F (2019) | 50.0°F (2004) | 0.00 in (2003) |
| October 23 | 104.0°F (2017) | 48.9°F (2009) | 0.07 in (2023) |
| October 24 | 104.0°F (2017) | 46.0°F (2023) | 0.80 in (2016) |
| October 25 | 102.0°F (2017) | 48.9°F (2012) | 0.35 in (2021) |
| October 26 | 93.9°F (2009) | 50.0°F (2010) | 0.00 in (2003) |
| October 27 | 93.9°F (2008) | 46.9°F (2023) | 2.30 in (2004) |
| October 28 | 95.0°F (2007) | 45.0°F (2009) | 0.33 in (2004) |
| October 29 | 93.9°F (2025) | 45.0°F (2009) | 0.24 in (2013) |
| October 30 | 90.0°F (2025) | 46.0°F (2010) | 0.32 in (2010) |
| October 31 | 90.0°F (2015) | 45.0°F (2010) | 0.00 in (2003) |