August weather in Port St. Joe, FL
The average temperature in Port St. Joe in August is 82.2°F (75.0°F–89.4°F). Average precipitation: 7.79 inches.
August is a summer month in Port St. Joe, and is warmer than the annual average of 69.1°F. Daily temperatures swing about 14.4°F between overnight low and afternoon high. Expect about 15 days with precipitation. Daylight averages about 13h 5m. For travel, August is a wet month.
Avg High
89.4°F
Avg Low
75.0°F
Precipitation
7.79 in
Daylight
13h 5m
August records in Port St. Joe
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| August 1 | 97.0°F (1999) | 64.9°F (2014) | 2.09 in (2008) |
| August 2 | 100.0°F (1999) | 66.0°F (2014) | 2.17 in (2018) |
| August 3 | 98.1°F (2015) | 69.1°F (2014) | 1.45 in (2017) |
| August 4 | 97.0°F (2020) | 72.0°F (2002) | 1.59 in (2025) |
| August 5 | 93.0°F (1999) | 73.0°F (2005) | 2.34 in (2001) |
| August 6 | 95.0°F (2013) | 71.1°F (2009) | 4.05 in (2001) |
| August 7 | 98.1°F (2024) | 73.0°F (2005) | 1.81 in (2025) |
| August 8 | 96.1°F (2024) | 72.0°F (2003) | 0.78 in (2010) |
| August 9 | 95.0°F (2000) | 69.1°F (2002) | 1.36 in (2016) |
| August 10 | 93.9°F (2007) | 69.1°F (2008) | 1.69 in (2016) |
| August 11 | 96.1°F (2011) | 71.1°F (2002) | 2.36 in (2022) |
| August 12 | 96.1°F (2023) | 72.0°F (2003) | 2.91 in (2008) |
| August 13 | 98.1°F (2024) | 71.1°F (2021) | 1.35 in (2020) |
| August 14 | 99.0°F (2024) | 71.1°F (2004) | 1.14 in (1998) |
| August 15 | 96.1°F (2011) | 70.0°F (2004) | 1.93 in (2009) |
| August 16 | 95.0°F (2014) | 71.1°F (2011) | 3.71 in (2021) |
| August 17 | 95.0°F (2017) | 69.1°F (2011) | 0.61 in (2013) |
| August 18 | 97.0°F (2023) | 72.0°F (2004) | 2.61 in (2022) |
| August 19 | 93.0°F (2014) | 72.0°F (2004) | 1.70 in (2019) |
| August 20 | 96.1°F (2014) | 71.1°F (2001) | 1.98 in (2012) |
| August 21 | 95.0°F (2014) | 69.1°F (2020) | 1.92 in (2009) |
| August 22 | 97.0°F (2014) | 69.1°F (2001) | 1.84 in (2008) |
| August 23 | 97.0°F (2007) | 66.9°F (2009) | 7.85 in (2020) |
| August 24 | 102.0°F (2014) | 66.0°F (2009) | 2.35 in (2020) |
| August 25 | 95.0°F (2015) | 64.9°F (2009) | 1.08 in (2021) |
| August 26 | 98.1°F (2011) | 69.1°F (2015) | 1.66 in (2023) |
| August 27 | 97.0°F (2011) | 64.0°F (2015) | 2.24 in (2009) |
| August 28 | 95.0°F (2011) | 66.9°F (2025) | 1.44 in (2021) |
| August 29 | 95.0°F (2007) | 66.0°F (2015) | 1.43 in (2017) |
| August 30 | 95.0°F (2007) | 69.1°F (2015) | 1.83 in (2023) |
| August 31 | 93.0°F (2007) | 69.1°F (2015) | 2.63 in (2002) |