October weather in San Luis Obispo, CA
The average temperature in San Luis Obispo in October is 63.5°F (49.7°F–77.2°F). Average precipitation: 0.92 inches.
October is a fall month in San Luis Obispo, and is warmer than the annual average of 59.7°F. Daily temperatures swing about 27.5°F between overnight low and afternoon high. Expect about 4 days with precipitation. Daylight averages about 11h 5m. For travel, October is a comfortable month to visit.
Avg High
77.2°F
Avg Low
49.7°F
Precipitation
0.92 in
Daylight
11h 5m
October records in San Luis Obispo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| October 1 | 105.1°F (2020) | 45.0°F (2002) | 0.01 in (1999) |
| October 2 | 105.1°F (2020) | 39.9°F (2002) | 0.01 in (2006) |
| October 3 | 100.0°F (2020) | 39.0°F (2002) | 0.50 in (2018) |
| October 4 | 102.9°F (2014) | 41.0°F (2002) | 0.12 in (2008) |
| October 5 | 100.9°F (2023) | 42.1°F (2002) | 1.14 in (2011) |
| October 6 | 106.0°F (2023) | 43.0°F (2007) | 0.36 in (2010) |
| October 7 | 100.0°F (2008) | 42.1°F (1998) | 0.07 in (2010) |
| October 8 | 100.0°F (2015) | 44.1°F (1998) | 0.00 in (1998) |
| October 9 | 105.1°F (2015) | 42.1°F (2007) | 0.00 in (1998) |
| October 10 | 91.0°F (1999) | 42.1°F (2013) | 0.25 in (2000) |
| October 11 | 93.9°F (2010) | 39.9°F (2019) | 0.65 in (2012) |
| October 12 | 99.0°F (2020) | 39.9°F (2008) | 0.19 in (2007) |
| October 13 | 102.0°F (2011) | 37.9°F (2019) | 3.68 in (2009) |
| October 14 | 98.1°F (2020) | 45.0°F (2008) | 0.22 in (2009) |
| October 15 | 99.0°F (2020) | 39.9°F (1998) | 0.08 in (2016) |
| October 16 | 97.0°F (2020) | 43.0°F (1998) | 0.36 in (2016) |
| October 17 | 96.1°F (2012) | 39.9°F (2003) | 0.36 in (2005) |
| October 18 | 91.0°F (2023) | 43.0°F (1999) | 0.25 in (2004) |
| October 19 | 100.0°F (2022) | 39.0°F (2002) | 1.79 in (2004) |
| October 20 | 97.0°F (2016) | 43.0°F (1998) | 0.07 in (2004) |
| October 21 | 93.9°F (2016) | 44.1°F (1999) | 0.01 in (2003) |
| October 22 | 98.1°F (2008) | 43.0°F (2006) | 0.05 in (2012) |
| October 23 | 104.0°F (2017) | 43.0°F (2006) | 0.07 in (2010) |
| October 24 | 108.0°F (2017) | 42.1°F (2002) | 0.23 in (2010) |
| October 25 | 100.0°F (2017) | 37.9°F (2002) | 1.66 in (2021) |
| October 26 | 93.0°F (2003) | 43.0°F (1998) | 1.79 in (2004) |
| October 27 | 96.1°F (2003) | 39.0°F (2004) | 0.99 in (2016) |
| October 28 | 93.9°F (2021) | 37.9°F (2002) | 0.37 in (2016) |
| October 29 | 91.9°F (2025) | 37.0°F (2019) | 0.39 in (2000) |
| October 30 | 88.0°F (2011) | 37.0°F (2019) | 0.70 in (2000) |
| October 31 | 95.0°F (2015) | 33.1°F (2019) | 1.01 in (2014) |