July weather in San Luis Obispo, CA
The average temperature in San Luis Obispo in July is 66.1°F (54.3°F–78.0°F). Average precipitation: 0.08 inches.
July is a summer month in San Luis Obispo, and is warmer than the annual average of 59.7°F. Daily temperatures swing about 23.7°F between overnight low and afternoon high. Expect about 0 days with precipitation. Daylight averages about 14h 10m. For travel, July is one of the best months of the year to visit.
Avg High
78.0°F
Avg Low
54.3°F
Precipitation
0.08 in
Daylight
14h 10m
July records in San Luis Obispo
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| July 1 | 89.1°F (2013) | 46.9°F (1998) | 0.00 in (1998) |
| July 2 | 96.1°F (2007) | 46.9°F (2003) | 0.00 in (1998) |
| July 3 | 90.0°F (2001) | 46.9°F (2019) | 0.00 in (1998) |
| July 4 | 88.0°F (2024) | 44.1°F (1999) | 0.00 in (1998) |
| July 5 | 88.0°F (2020) | 46.9°F (2002) | 0.00 in (1998) |
| July 6 | 102.0°F (2018) | 48.9°F (2003) | 0.00 in (1998) |
| July 7 | 97.0°F (2018) | 48.0°F (2003) | 0.00 in (1998) |
| July 8 | 99.0°F (2017) | 46.9°F (2003) | 0.00 in (1998) |
| July 9 | 98.1°F (2018) | 48.0°F (2003) | 0.00 in (1998) |
| July 10 | 90.0°F (2018) | 46.9°F (2004) | 0.00 in (1998) |
| July 11 | 89.1°F (2020) | 48.0°F (2003) | 0.03 in (2010) |
| July 12 | 93.9°F (2003) | 48.0°F (2006) | 0.00 in (1998) |
| July 13 | 91.0°F (1999) | 46.0°F (2000) | 0.00 in (1998) |
| July 14 | 88.0°F (2009) | 50.0°F (2000) | 0.00 in (1998) |
| July 15 | 99.0°F (1998) | 50.0°F (2003) | 0.00 in (1998) |
| July 16 | 98.1°F (1998) | 51.1°F (2019) | 0.00 in (1998) |
| July 17 | 89.1°F (2003) | 52.0°F (2006) | 0.00 in (1998) |
| July 18 | 90.0°F (2003) | 50.0°F (2000) | 0.00 in (1998) |
| July 19 | 93.0°F (2009) | 52.0°F (2010) | 1.32 in (2015) |
| July 20 | 87.1°F (2015) | 51.1°F (2001) | 0.00 in (1998) |
| July 21 | 88.0°F (2016) | 50.0°F (2001) | 0.00 in (1998) |
| July 22 | 93.0°F (2006) | 48.0°F (2002) | 0.00 in (1998) |
| July 23 | 95.0°F (2006) | 46.0°F (2002) | 0.00 in (1998) |
| July 24 | 91.9°F (2006) | 50.0°F (2002) | 0.00 in (1998) |
| July 25 | 91.9°F (2006) | 48.9°F (1999) | 0.00 in (1998) |
| July 26 | 91.9°F (2008) | 48.9°F (2000) | 0.01 in (2021) |
| July 27 | 86.0°F (2016) | 50.0°F (2000) | 0.00 in (1998) |
| July 28 | 86.0°F (2014) | 48.0°F (2010) | 0.00 in (1998) |
| July 29 | 86.0°F (2003) | 46.9°F (1999) | 0.00 in (1998) |
| July 30 | 86.0°F (2016) | 50.0°F (2019) | 0.00 in (1998) |
| July 31 | 87.1°F (2018) | 48.9°F (1999) | 0.00 in (1998) |