September weather in Myrtle Beach, SC
The average temperature in Myrtle Beach in September is 74.0°F (65.0°F–83.0°F). Average precipitation: 6.77 inches.
September is a fall month in Myrtle Beach, and is warmer than the annual average of 62.4°F. Daily temperatures swing about 18°F between overnight low and afternoon high. Daylight averages about 12h 12m. For travel, September is a wet month.
Avg High
83.0°F
Avg Low
65.0°F
Precipitation
6.77 in
Daylight
12h 12m
September records in Myrtle Beach
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 97.0°F (1993) | 60.1°F (1999) | 6.20 in (2006) |
| September 2 | 91.9°F (2012) | 62.1°F (1998) | 0.65 in (2016) |
| September 3 | 91.9°F (2012) | 57.0°F (1996) | 7.00 in (2016) |
| September 4 | 93.9°F (2010) | 55.9°F (1994) | 2.90 in (1998) |
| September 5 | 91.9°F (2020) | 51.1°F (1997) | 0.67 in (2000) |
| September 6 | 90.0°F (1998) | 53.1°F (1997) | 10.00 in (2019) |
| September 7 | 93.0°F (2022) | 44.1°F (2003) | 3.80 in (1999) |
| September 8 | 91.9°F (2016) | 39.9°F (2017) | 0.25 in (1992) |
| September 9 | 93.9°F (1998) | 50.0°F (1996) | 1.26 in (1998) |
| September 10 | 93.0°F (2022) | 55.0°F (1998) | 0.92 in (2021) |
| September 11 | 90.0°F (1990) | 43.0°F (1996) | 2.30 in (1996) |
| September 12 | 97.0°F (2002) | 43.0°F (1996) | 2.50 in (2017) |
| September 13 | 89.1°F (1997) | 57.9°F (1992) | 1.92 in (2022) |
| September 14 | 91.0°F (2000) | 55.0°F (2015) | 2.00 in (2005) |
| September 15 | 89.1°F (1990) | 54.0°F (2015) | 3.50 in (2018) |
| September 16 | 91.9°F (2005) | 57.0°F (2001) | 14.80 in (1999) |
| September 17 | 93.0°F (1990) | 48.9°F (2003) | 2.05 in (2018) |
| September 18 | 93.0°F (1990) | 52.0°F (2003) | 2.02 in (2020) |
| September 19 | 91.0°F (2018) | 54.0°F (1990) | 3.55 in (2000) |
| September 20 | 90.0°F (2018) | 52.0°F (2003) | 2.20 in (2016) |
| September 21 | 91.0°F (2018) | 52.0°F (2003) | 1.70 in (1999) |
| September 22 | 91.0°F (2018) | 48.9°F (2003) | 1.75 in (2000) |
| September 23 | 93.0°F (2005) | 48.9°F (1999) | 2.00 in (2009) |
| September 24 | 91.0°F (2018) | 46.0°F (1999) | 1.20 in (1994) |
| September 25 | 91.9°F (2018) | 48.0°F (1990) | 1.49 in (2015) |
| September 26 | 88.0°F (2010) | 48.0°F (1990) | 2.40 in (2008) |
| September 27 | 88.0°F (1993) | 48.9°F (2001) | 1.50 in (1993) |
| September 28 | 91.0°F (2017) | 48.9°F (1990) | 2.00 in (2010) |
| September 29 | 93.0°F (1998) | 52.0°F (2001) | 0.61 in (2020) |
| September 30 | 89.1°F (1997) | 51.1°F (2001) | 3.85 in (2010) |