May weather in St. Marys, GA
The average temperature in St. Marys in May is 73.5°F (65.1°F–82.0°F). Average precipitation: 3.71 inches.
May is a spring month in St. Marys, and is warmer than the annual average of 67.8°F. Daily temperatures swing about 16.9°F between overnight low and afternoon high. Expect about 8 days with precipitation. Daylight averages about 13h 33m. For travel, May is a comfortable month to visit.
Avg High
82.0°F
Avg Low
65.1°F
Precipitation
3.71 in
Daylight
13h 33m
May records in St. Marys
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.8°F (2017) | 52.2°F (2020) | 0.29 in (2024) |
| May 2 | 83.5°F (2007) | 48.7°F (2006) | 3.65 in (2013) |
| May 3 | 91.0°F (2006) | 50.9°F (2015) | 1.51 in (2013) |
| May 4 | 89.2°F (2006) | 48.7°F (2023) | 1.07 in (2017) |
| May 5 | 91.8°F (2021) | 52.7°F (2023) | 0.96 in (2019) |
| May 6 | 91.4°F (2012) | 51.3°F (2016) | 1.35 in (2012) |
| May 7 | 86.7°F (2006) | 50.5°F (2016) | 0.06 in (2025) |
| May 8 | 91.4°F (2010) | 46.2°F (2020) | 0.39 in (2006) |
| May 9 | 93.0°F (2024) | 53.2°F (2021) | 0.50 in (2007) |
| May 10 | 91.9°F (2008) | 52.9°F (2022) | 1.22 in (2025) |
| May 11 | 94.8°F (2017) | 54.9°F (2020) | 0.68 in (2008) |
| May 12 | 92.8°F (2017) | 52.3°F (2020) | 1.58 in (2025) |
| May 13 | 91.2°F (2011) | 52.7°F (2013) | 1.17 in (2019) |
| May 14 | 89.1°F (2024) | 49.8°F (2013) | 1.70 in (2011) |
| May 15 | 89.2°F (2025) | 52.9°F (2013) | 0.90 in (2006) |
| May 16 | 95.7°F (2025) | 53.2°F (2021) | 1.43 in (2018) |
| May 17 | 91.6°F (2025) | 52.9°F (2011) | 2.94 in (2016) |
| May 18 | 88.0°F (2025) | 52.5°F (2011) | 0.83 in (2009) |
| May 19 | 94.1°F (2022) | 56.5°F (2011) | 2.24 in (2016) |
| May 20 | 93.4°F (2006) | 54.5°F (2007) | 1.08 in (2009) |
| May 21 | 94.1°F (2015) | 55.6°F (2007) | 1.44 in (2023) |
| May 22 | 92.3°F (2006) | 58.6°F (2005) | 1.30 in (2012) |
| May 23 | 94.3°F (2014) | 58.6°F (2016) | 1.57 in (2020) |
| May 24 | 91.0°F (2005) | 60.1°F (2016) | 2.06 in (2017) |
| May 25 | 92.5°F (2019) | 59.4°F (2017) | 0.46 in (2025) |
| May 26 | 93.7°F (2019) | 53.8°F (2005) | 0.23 in (2020) |
| May 27 | 93.6°F (2019) | 56.8°F (2005) | 1.00 in (2018) |
| May 28 | 95.2°F (2019) | 57.9°F (2023) | 1.13 in (2012) |
| May 29 | 95.5°F (2019) | 57.2°F (2023) | 1.00 in (2012) |
| May 30 | 93.2°F (2019) | 61.0°F (2021) | 0.90 in (2017) |
| May 31 | 93.4°F (2019) | 62.8°F (2024) | 0.90 in (2017) |