May weather in Port St. Joe, FL
The average temperature in Port St. Joe in May is 74.8°F (65.9°F–83.7°F). Average precipitation: 1.87 inches.
May is a spring month in Port St. Joe, and is warmer than the annual average of 69.1°F. Daily temperatures swing about 17.8°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 13h 30m. For travel, May is a comfortable month to visit.
Avg High
83.7°F
Avg Low
65.9°F
Precipitation
1.87 in
Daylight
13h 30m
May records in Port St. Joe
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 86.0°F (2002) | 50.0°F (2020) | 0.18 in (2013) |
| May 2 | 87.1°F (2017) | 48.9°F (1999) | 0.96 in (2014) |
| May 3 | 86.0°F (2002) | 51.1°F (1999) | 0.38 in (2013) |
| May 4 | 86.0°F (2002) | 52.0°F (2004) | 2.52 in (2010) |
| May 5 | 87.1°F (2002) | 46.9°F (2004) | 1.05 in (2021) |
| May 6 | 89.1°F (2007) | 48.0°F (2017) | 1.12 in (2021) |
| May 7 | 91.9°F (2018) | 50.0°F (2016) | 1.66 in (1999) |
| May 8 | 88.0°F (2002) | 48.9°F (2007) | 1.58 in (2025) |
| May 9 | 91.9°F (2015) | 55.0°F (2005) | 2.80 in (2006) |
| May 10 | 91.0°F (2009) | 59.0°F (1999) | 0.77 in (2024) |
| May 11 | 91.9°F (2009) | 54.0°F (2012) | 1.51 in (2006) |
| May 12 | 91.0°F (2018) | 51.1°F (2006) | 0.27 in (2021) |
| May 13 | 91.9°F (2007) | 55.0°F (2006) | 1.49 in (2024) |
| May 14 | 89.1°F (2015) | 52.0°F (2013) | 0.64 in (2024) |
| May 15 | 89.1°F (2015) | 55.0°F (2013) | 0.26 in (2018) |
| May 16 | 90.0°F (2024) | 51.1°F (2011) | 0.79 in (2022) |
| May 17 | 88.0°F (2010) | 51.1°F (2011) | 0.75 in (2024) |
| May 18 | 89.1°F (2010) | 48.0°F (2011) | 0.80 in (2002) |
| May 19 | 91.9°F (2015) | 51.1°F (2011) | 0.06 in (2020) |
| May 20 | 91.9°F (2015) | 50.0°F (2002) | 2.22 in (2016) |
| May 21 | 96.1°F (2015) | 53.1°F (2002) | 1.06 in (2003) |
| May 22 | 91.0°F (2014) | 55.0°F (2002) | 0.66 in (2003) |
| May 23 | 93.9°F (2014) | 54.0°F (2002) | 2.34 in (2008) |
| May 24 | 91.9°F (2005) | 57.0°F (2001) | 0.69 in (2017) |
| May 25 | 91.0°F (2004) | 59.0°F (2001) | 2.60 in (2022) |
| May 26 | 91.9°F (2012) | 55.9°F (2017) | 3.11 in (2022) |
| May 27 | 95.0°F (2012) | 60.1°F (2005) | 0.86 in (2018) |
| May 28 | 93.9°F (2024) | 57.9°F (2023) | 0.94 in (2018) |
| May 29 | 96.1°F (2024) | 61.0°F (2003) | 1.48 in (2025) |
| May 30 | 91.9°F (2016) | 64.0°F (2023) | 1.49 in (2002) |
| May 31 | 95.0°F (2020) | 63.0°F (2021) | 1.36 in (1999) |