September weather in Biddeford, ME
The average temperature in Biddeford in September is 59.1°F (48.9°F–69.3°F). Average precipitation: 3.93 inches.
September is a fall month in Biddeford, and is warmer than the annual average of 45.3°F. Daily temperatures swing about 20.4°F between overnight low and afternoon high. Expect about 10 days with precipitation. Daylight averages about 12h 17m. For travel, September is a comfortable month to visit.
Avg High
69.3°F
Avg Low
48.9°F
Precipitation
3.93 in
Daylight
12h 17m
September records in Biddeford
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 91.0°F (2010) | 39.9°F (2000) | 0.93 in (2014) |
| September 2 | 91.9°F (2010) | 39.0°F (1991) | 2.43 in (2021) |
| September 3 | 91.9°F (2010) | 39.9°F (1994) | 4.44 in (2013) |
| September 4 | 86.0°F (1999) | 36.0°F (1996) | 1.58 in (2006) |
| September 5 | 84.9°F (2018) | 37.9°F (1995) | 1.10 in (2003) |
| September 6 | 84.9°F (2023) | 27.0°F (2002) | 1.78 in (1994) |
| September 7 | 91.9°F (2018) | 39.9°F (2009) | 5.70 in (2008) |
| September 8 | 99.0°F (1995) | 44.1°F (1990) | 0.82 in (2011) |
| September 9 | 91.0°F (2015) | 36.0°F (1990) | 1.11 in (2004) |
| September 10 | 93.0°F (2016) | 37.9°F (2003) | 0.83 in (2004) |
| September 11 | 82.9°F (2002) | 19.9°F (2000) | 2.45 in (2018) |
| September 12 | 84.9°F (2013) | 35.1°F (2002) | 1.62 in (2007) |
| September 13 | 80.1°F (1998) | 37.0°F (1991) | 2.20 in (2013) |
| September 14 | 81.0°F (2002) | 37.9°F (1996) | 0.62 in (1996) |
| September 15 | 84.0°F (1995) | 36.0°F (2001) | 1.46 in (1989) |
| September 16 | 82.0°F (2015) | 23.0°F (1995) | 1.83 in (2002) |
| September 17 | 79.0°F (2015) | 28.9°F (2011) | 3.78 in (1999) |
| September 18 | 86.0°F (1991) | 32.0°F (2008) | 1.09 in (1995) |
| September 19 | 82.9°F (1992) | 19.0°F (1995) | 2.22 in (2023) |
| September 20 | 75.9°F (2025) | 28.0°F (1993) | 1.93 in (1991) |
| September 21 | 75.0°F (1996) | 19.0°F (1996) | 0.59 in (2001) |
| September 22 | 82.0°F (2016) | 23.0°F (1996) | 0.82 in (2001) |
| September 23 | 80.1°F (2010) | 30.9°F (1996) | 1.25 in (2002) |
| September 24 | 80.1°F (2005) | 28.0°F (1996) | 3.74 in (1994) |
| September 25 | 82.0°F (2017) | 30.0°F (1989) | 0.94 in (1991) |
| September 26 | 84.9°F (2007) | 33.1°F (2009) | 1.93 in (1991) |
| September 27 | 90.0°F (2007) | 30.9°F (2015) | 3.30 in (2008) |
| September 28 | 81.0°F (2014) | 28.9°F (1989) | 1.30 in (1993) |
| September 29 | 75.9°F (2007) | 28.0°F (2000) | 1.00 in (2012) |
| September 30 | 73.9°F (2010) | 28.9°F (1991) | 0.50 in (2012) |