May weather in St. Martinville, LA
The average temperature in St. Martinville in May is 74.6°F (65.1°F–84.1°F). Average precipitation: 5.45 inches.
May is a spring month in St. Martinville, and is warmer than the annual average of 67.8°F. Daily temperatures swing about 19°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 31m. For travel, May is a wet month.
Avg High
84.1°F
Avg Low
65.1°F
Precipitation
5.45 in
Daylight
13h 31m
May records in St. Martinville
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 87.8°F (2012) | 32.0°F (2023) | 1.39 in (2013) |
| May 2 | 86.9°F (2003) | 32.0°F (2023) | 1.14 in (2021) |
| May 3 | 90.9°F (2010) | 43.5°F (2013) | 5.82 in (2017) |
| May 4 | 91.0°F (2010) | 41.7°F (2013) | 2.81 in (2019) |
| May 5 | 88.9°F (2010) | 46.2°F (2013) | 0.69 in (2006) |
| May 6 | 88.9°F (2012) | 44.4°F (2013) | 1.30 in (2025) |
| May 7 | 89.2°F (2018) | 51.1°F (2016) | 2.41 in (2025) |
| May 8 | 90.5°F (2018) | 54.9°F (2013) | 1.53 in (2020) |
| May 9 | 88.3°F (2018) | 56.1°F (2020) | 1.98 in (2019) |
| May 10 | 89.2°F (2022) | 56.5°F (2020) | 3.29 in (2013) |
| May 11 | 88.9°F (2003) | 50.5°F (2020) | 6.04 in (2021) |
| May 12 | 90.3°F (2022) | 50.4°F (2006) | 3.30 in (2004) |
| May 13 | 90.3°F (2018) | 53.8°F (2013) | 1.74 in (2024) |
| May 14 | 91.9°F (2018) | 53.8°F (2011) | 1.50 in (2004) |
| May 15 | 93.9°F (2018) | 48.0°F (2011) | 2.51 in (2008) |
| May 16 | 93.7°F (2018) | 50.9°F (2014) | 2.15 in (2015) |
| May 17 | 92.5°F (2018) | 44.6°F (2011) | 5.60 in (2021) |
| May 18 | 91.4°F (2018) | 52.9°F (2011) | 1.15 in (2015) |
| May 19 | 89.8°F (2018) | 52.5°F (2007) | 2.65 in (2019) |
| May 20 | 91.4°F (2018) | 51.3°F (2009) | 3.65 in (2021) |
| May 21 | 92.5°F (2005) | 59.2°F (2006) | 0.97 in (2012) |
| May 22 | 92.7°F (2005) | 61.0°F (2014) | 2.30 in (2013) |
| May 23 | 93.0°F (2005) | 60.1°F (2003) | 0.44 in (2018) |
| May 24 | 93.9°F (2010) | 55.9°F (2017) | 1.59 in (2015) |
| May 25 | 93.7°F (2010) | 52.7°F (2017) | 0.63 in (2022) |
| May 26 | 91.4°F (2011) | 63.3°F (2023) | 1.89 in (2015) |
| May 27 | 91.8°F (2024) | 62.2°F (2020) | 1.59 in (2025) |
| May 28 | 92.5°F (2024) | 58.6°F (2003) | 4.06 in (2014) |
| May 29 | 93.4°F (2018) | 61.0°F (2009) | 1.60 in (2014) |
| May 30 | 91.8°F (2011) | 61.0°F (2021) | 2.91 in (2017) |
| May 31 | 92.8°F (2011) | 61.5°F (2021) | 2.33 in (2010) |