September weather in Boynton Beach, FL
The average temperature in Boynton Beach in September is 81.2°F (73.7°F–88.6°F). Average precipitation: 8.60 inches.
September is a fall month in Boynton Beach, and is warmer than the annual average of 74.8°F. Daily temperatures swing about 14.9°F between overnight low and afternoon high. Expect about 17 days with precipitation. Daylight averages about 12h 9m. For travel, September is a wet month.
Avg High
88.6°F
Avg Low
73.7°F
Precipitation
8.60 in
Daylight
12h 9m
September records in Boynton Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (2007) | 71.1°F (1992) | 2.12 in (2022) |
| September 2 | 95.0°F (2007) | 72.0°F (2003) | 1.79 in (2022) |
| September 3 | 95.0°F (2007) | 71.1°F (2013) | 1.28 in (2021) |
| September 4 | 95.0°F (2007) | 70.0°F (2018) | 1.80 in (2019) |
| September 5 | 95.0°F (1999) | 66.0°F (2012) | 3.58 in (2008) |
| September 6 | 93.0°F (2020) | 70.0°F (2012) | 4.03 in (1998) |
| September 7 | 95.0°F (1999) | 72.0°F (2011) | 1.31 in (1999) |
| September 8 | 93.0°F (2019) | 69.1°F (1997) | 1.08 in (1999) |
| September 9 | 91.9°F (2015) | 71.1°F (1997) | 0.87 in (2001) |
| September 10 | 93.0°F (2011) | 70.0°F (1997) | 2.86 in (1996) |
| September 11 | 98.1°F (2002) | 72.0°F (1997) | 1.62 in (1995) |
| September 12 | 93.0°F (1993) | 71.1°F (1993) | 2.50 in (2012) |
| September 13 | 93.9°F (2007) | 71.1°F (1994) | 4.53 in (2014) |
| September 14 | 93.0°F (2022) | 71.1°F (1994) | 3.05 in (2001) |
| September 15 | 93.9°F (2023) | 70.0°F (2011) | 1.07 in (2011) |
| September 16 | 93.0°F (2018) | 70.0°F (2011) | 3.14 in (1998) |
| September 17 | 93.0°F (2016) | 69.1°F (2005) | 2.30 in (2015) |
| September 18 | 93.0°F (2016) | 64.0°F (1999) | 2.24 in (2007) |
| September 19 | 91.9°F (2016) | 71.1°F (2022) | 2.37 in (2024) |
| September 20 | 91.9°F (2006) | 71.1°F (1994) | 2.80 in (2024) |
| September 21 | 91.9°F (2020) | 66.9°F (2004) | 3.00 in (2020) |
| September 22 | 93.0°F (2009) | 71.1°F (2004) | 3.65 in (2004) |
| September 23 | 91.9°F (2022) | 69.1°F (2020) | 1.57 in (2009) |
| September 24 | 91.9°F (2016) | 69.1°F (2020) | 1.09 in (2002) |
| September 25 | 91.9°F (2009) | 68.0°F (2019) | 4.27 in (2007) |
| September 26 | 91.9°F (2001) | 69.1°F (2019) | 3.12 in (1998) |
| September 27 | 91.0°F (2006) | 70.0°F (2021) | 1.61 in (1991) |
| September 28 | 91.0°F (2009) | 70.0°F (1991) | 1.86 in (1997) |
| September 29 | 93.0°F (2009) | 64.0°F (2014) | 4.00 in (2001) |
| September 30 | 91.9°F (2018) | 66.9°F (2022) | 3.75 in (2004) |