May weather in Marco Island, FL
The average temperature in Marco Island in May is 78.6°F (69.7°F–87.5°F). Average precipitation: 3.38 inches.
May is a spring month in Marco Island, and is warmer than the annual average of 75.3°F. Daily temperatures swing about 17.8°F between overnight low and afternoon high. Expect about 9 days with precipitation. Daylight averages about 13h 16m. For travel, May is a comfortable month to visit.
Avg High
87.5°F
Avg Low
69.7°F
Precipitation
3.38 in
Daylight
13h 16m
May records in Marco Island
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| May 1 | 90.0°F (2016) | 59.0°F (2008) | 1.84 in (2020) |
| May 2 | 91.0°F (2017) | 57.9°F (2006) | 0.71 in (2013) |
| May 3 | 90.0°F (2016) | 57.9°F (2006) | 0.81 in (2013) |
| May 4 | 90.0°F (2018) | 63.0°F (2006) | 0.41 in (2022) |
| May 5 | 91.9°F (2018) | 63.0°F (2004) | 1.30 in (2016) |
| May 6 | 90.0°F (2014) | 62.1°F (2004) | 0.96 in (2017) |
| May 7 | 89.1°F (2023) | 59.0°F (2005) | 0.23 in (2023) |
| May 8 | 90.0°F (2018) | 57.9°F (2007) | 0.20 in (2022) |
| May 9 | 93.0°F (2018) | 59.0°F (2007) | 0.44 in (2019) |
| May 10 | 91.9°F (2018) | 62.1°F (2007) | 0.96 in (2019) |
| May 11 | 91.9°F (2015) | 64.0°F (2022) | 0.39 in (2004) |
| May 12 | 91.9°F (2015) | 64.9°F (2005) | 2.05 in (2025) |
| May 13 | 93.9°F (2014) | 62.1°F (2008) | 0.29 in (2011) |
| May 14 | 93.9°F (2014) | 62.1°F (2008) | 1.89 in (2018) |
| May 15 | 91.0°F (2015) | 63.0°F (2008) | 1.56 in (2007) |
| May 16 | 91.0°F (2023) | 63.0°F (2008) | 3.37 in (2011) |
| May 17 | 95.0°F (2017) | 64.0°F (2014) | 1.68 in (2018) |
| May 18 | 91.9°F (2017) | 64.0°F (2014) | 1.82 in (2016) |
| May 19 | 91.9°F (2014) | 63.0°F (2009) | 2.16 in (2020) |
| May 20 | 93.0°F (2014) | 63.0°F (2011) | 1.10 in (2003) |
| May 21 | 93.0°F (2014) | 64.9°F (2007) | 0.78 in (2018) |
| May 22 | 93.0°F (2014) | 64.9°F (2007) | 0.71 in (2013) |
| May 23 | 95.0°F (2022) | 64.9°F (2009) | 2.30 in (2003) |
| May 24 | 91.9°F (2019) | 64.9°F (2007) | 0.86 in (2012) |
| May 25 | 91.9°F (2016) | 64.9°F (2007) | 0.34 in (2015) |
| May 26 | 93.9°F (2025) | 64.0°F (2007) | 0.39 in (2020) |
| May 27 | 93.0°F (2017) | 64.0°F (2007) | 0.89 in (2014) |
| May 28 | 93.0°F (2015) | 64.0°F (2008) | 1.32 in (2016) |
| May 29 | 93.0°F (2025) | 64.9°F (2007) | 0.78 in (2013) |
| May 30 | 91.9°F (2017) | 66.9°F (2007) | 0.80 in (2003) |
| May 31 | 93.0°F (2017) | 66.9°F (2007) | 0.74 in (2008) |