September weather in Las Vegas, NM
The average temperature in Las Vegas in September is 60.3°F (42.1°F–78.6°F). Average precipitation: 2.43 inches.
September is a fall month in Las Vegas, and is warmer than the annual average of 48.9°F. Daily temperatures swing about 36.5°F between overnight low and afternoon high. Expect about 6 days with precipitation. Daylight averages about 12h 13m. For travel, September is a comfortable month to visit.
Avg High
78.6°F
Avg Low
42.1°F
Precipitation
2.43 in
Daylight
12h 13m
September records in Las Vegas
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 93.9°F (2011) | 39.0°F (2004) | 1.69 in (1994) |
| September 2 | 93.9°F (2011) | 41.0°F (1994) | 1.05 in (2021) |
| September 3 | 91.0°F (2011) | 37.9°F (2024) | 0.26 in (1999) |
| September 4 | 90.0°F (2011) | 39.0°F (1993) | 1.00 in (2003) |
| September 5 | 91.0°F (2000) | 35.1°F (1985) | 0.70 in (2021) |
| September 6 | 91.0°F (2000) | 34.0°F (2005) | 1.05 in (1991) |
| September 7 | 91.0°F (2000) | 39.0°F (1988) | 1.34 in (2005) |
| September 8 | 91.0°F (2000) | 33.1°F (2001) | 1.02 in (1986) |
| September 9 | 91.0°F (2000) | 30.0°F (2001) | 0.50 in (2002) |
| September 10 | 90.0°F (2002) | 23.0°F (1988) | 0.90 in (1991) |
| September 11 | 90.0°F (2002) | 27.0°F (1988) | 0.90 in (2002) |
| September 12 | 90.0°F (2002) | 32.0°F (2001) | 0.64 in (1983) |
| September 13 | 90.0°F (2002) | 32.0°F (2001) | 2.20 in (1997) |
| September 14 | 88.0°F (2000) | 32.0°F (1989) | 1.10 in (1997) |
| September 15 | 87.1°F (1998) | 30.9°F (1989) | 0.52 in (2011) |
| September 16 | 88.0°F (2000) | 32.0°F (1989) | 0.64 in (2009) |
| September 17 | 90.0°F (2000) | 30.9°F (2005) | 1.59 in (1990) |
| September 18 | 90.0°F (2000) | 27.0°F (2006) | 1.06 in (1999) |
| September 19 | 84.0°F (1983) | 27.0°F (2006) | 1.35 in (2004) |
| September 20 | 84.9°F (1997) | 28.0°F (1993) | 1.40 in (1989) |
| September 21 | 87.1°F (2022) | 28.0°F (1993) | 2.76 in (2007) |
| September 22 | 84.9°F (2001) | 28.0°F (1993) | 0.43 in (1997) |
| September 23 | 84.9°F (2001) | 28.0°F (2009) | 0.23 in (1987) |
| September 24 | 84.9°F (2001) | 28.0°F (1985) | 0.31 in (1986) |
| September 25 | 84.9°F (1998) | 21.9°F (2000) | 0.42 in (2004) |
| September 26 | 84.9°F (1998) | 23.0°F (2000) | 0.29 in (1984) |
| September 27 | 86.0°F (2025) | 23.0°F (2000) | 0.12 in (1984) |
| September 28 | 87.1°F (2001) | 19.9°F (1985) | 0.15 in (2025) |
| September 29 | 87.1°F (2001) | 26.1°F (1999) | 2.25 in (2005) |
| September 30 | 87.1°F (2001) | 21.9°F (1999) | 0.35 in (1998) |