August weather in Oceanside, CA
The average temperature in Oceanside in August is 70.2°F (62.1°F–78.3°F). Average precipitation: 0.04 inches.
August is a summer month in Oceanside, and is warmer than the annual average of 61°F. Daily temperatures swing about 16.2°F between overnight low and afternoon high. Expect about 1 days with precipitation. Daylight averages about 13h 14m. For travel, August is one of the best months of the year to visit.
Avg High
78.3°F
Avg Low
62.1°F
Precipitation
0.04 in
Daylight
13h 14m
August records in Oceanside
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 86.0°F (2018) | 54.0°F (1999) | 0.02 in (2011) |
| August 2 | 84.9°F (2017) | 55.9°F (2021) | 0.03 in (2014) |
| August 3 | 84.9°F (2017) | 55.0°F (2021) | 0.01 in (2006) |
| August 4 | 82.9°F (2018) | 55.0°F (2011) | 0.03 in (2006) |
| August 5 | 84.9°F (2015) | 55.0°F (2006) | 0.01 in (2006) |
| August 6 | 84.0°F (2018) | 51.1°F (2004) | 0.00 in (1999) |
| August 7 | 87.1°F (2018) | 55.0°F (2020) | 0.09 in (2008) |
| August 8 | 91.9°F (2018) | 53.1°F (1999) | 0.01 in (2003) |
| August 9 | 89.1°F (2018) | 51.1°F (1999) | 0.00 in (1999) |
| August 10 | 89.1°F (2018) | 55.9°F (2000) | 0.00 in (1999) |
| August 11 | 87.1°F (2018) | 55.0°F (2000) | 0.00 in (1999) |
| August 12 | 84.9°F (2012) | 54.0°F (1999) | 0.00 in (1999) |
| August 13 | 87.1°F (2021) | 59.0°F (2000) | 0.00 in (1999) |
| August 14 | 88.0°F (2020) | 59.0°F (2010) | 0.00 in (1999) |
| August 15 | 87.1°F (2020) | 57.9°F (1999) | 0.02 in (2017) |
| August 16 | 87.1°F (2020) | 57.9°F (1999) | 0.00 in (1999) |
| August 17 | 88.0°F (2012) | 54.0°F (1999) | 0.00 in (1999) |
| August 18 | 89.1°F (2020) | 54.0°F (1999) | 0.00 in (1999) |
| August 19 | 84.9°F (2012) | 54.0°F (1999) | 0.01 in (2007) |
| August 20 | 86.0°F (2020) | 55.9°F (2005) | 2.25 in (2023) |
| August 21 | 90.0°F (2020) | 54.0°F (2019) | 0.03 in (2021) |
| August 22 | 91.9°F (2020) | 55.9°F (2001) | 0.00 in (1999) |
| August 23 | 90.0°F (2025) | 55.0°F (1999) | 0.00 in (1999) |
| August 24 | 84.9°F (2010) | 55.0°F (2002) | 0.01 in (1999) |
| August 25 | 87.1°F (2015) | 52.0°F (2002) | 0.00 in (1999) |
| August 26 | 86.0°F (2009) | 50.0°F (2009) | 0.44 in (2007) |
| August 27 | 91.9°F (2009) | 52.0°F (2009) | 0.01 in (2006) |
| August 28 | 91.0°F (2009) | 54.0°F (2009) | 0.01 in (2025) |
| August 29 | 88.0°F (2009) | 55.9°F (2002) | 0.01 in (2006) |
| August 30 | 93.0°F (2013) | 55.9°F (2009) | 0.00 in (1999) |
| August 31 | 88.0°F (2017) | 51.1°F (2010) | 0.03 in (2010) |