September weather in Marco Island, FL
The average temperature in Marco Island in September is 82.6°F (75.2°F–90.0°F). Average precipitation: 9.92 inches.
September is a fall month in Marco Island, and is warmer than the annual average of 75.3°F. Daily temperatures swing about 14.8°F between overnight low and afternoon high. Expect about 18 days with precipitation. Daylight averages about 12h 9m. For travel, September is a wet month.
Avg High
90.0°F
Avg Low
75.2°F
Precipitation
9.92 in
Daylight
12h 9m
September records in Marco Island
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 95.0°F (2014) | 72.0°F (2004) | 1.87 in (2014) |
| September 2 | 95.0°F (2012) | 70.0°F (2007) | 1.97 in (2024) |
| September 3 | 96.1°F (2020) | 70.0°F (2010) | 2.25 in (2014) |
| September 4 | 96.1°F (2020) | 71.1°F (2006) | 3.33 in (2018) |
| September 5 | 96.1°F (2020) | 72.0°F (2004) | 0.40 in (2004) |
| September 6 | 96.1°F (2020) | 70.0°F (2009) | 2.33 in (2002) |
| September 7 | 93.0°F (2015) | 70.0°F (2009) | 1.70 in (2025) |
| September 8 | 95.0°F (2022) | 71.1°F (2010) | 1.99 in (2010) |
| September 9 | 95.0°F (2017) | 68.0°F (2007) | 2.99 in (2007) |
| September 10 | 95.0°F (2015) | 72.0°F (2006) | 2.88 in (2025) |
| September 11 | 95.0°F (2019) | 72.0°F (2009) | 7.20 in (2017) |
| September 12 | 93.9°F (2011) | 69.1°F (2009) | 4.09 in (2002) |
| September 13 | 93.9°F (2012) | 71.1°F (2007) | 3.82 in (2020) |
| September 14 | 91.9°F (2015) | 70.0°F (2007) | 3.67 in (2020) |
| September 15 | 93.9°F (2012) | 71.1°F (2007) | 1.91 in (2021) |
| September 16 | 93.9°F (2017) | 71.1°F (2007) | 0.77 in (2012) |
| September 17 | 93.0°F (2017) | 73.0°F (2003) | 2.01 in (2021) |
| September 18 | 96.1°F (2018) | 69.1°F (2007) | 1.79 in (2003) |
| September 19 | 93.9°F (2019) | 69.1°F (2007) | 0.70 in (2015) |
| September 20 | 93.9°F (2002) | 69.1°F (2004) | 1.35 in (2004) |
| September 21 | 93.9°F (2016) | 70.0°F (2010) | 2.71 in (2005) |
| September 22 | 93.0°F (2011) | 69.1°F (2008) | 3.32 in (2008) |
| September 23 | 93.0°F (2023) | 69.1°F (2008) | 2.24 in (2009) |
| September 24 | 91.9°F (2016) | 70.0°F (2004) | 1.38 in (2007) |
| September 25 | 95.0°F (2024) | 69.1°F (2008) | 0.82 in (2009) |
| September 26 | 93.9°F (2017) | 69.1°F (2008) | 3.29 in (2003) |
| September 27 | 93.9°F (2021) | 69.1°F (2007) | 2.84 in (2011) |
| September 28 | 93.9°F (2018) | 69.1°F (2007) | 2.04 in (2022) |
| September 29 | 93.0°F (2017) | 68.0°F (2006) | 1.35 in (2022) |
| September 30 | 93.0°F (2018) | 64.9°F (2022) | 7.50 in (2003) |