September weather in Sierra Vista, AZ
The average temperature in Sierra Vista in September is 71.7°F (56.7°F–86.8°F). Average precipitation: 1.31 inches.
September is a fall month in Sierra Vista, and is warmer than the annual average of 61.6°F. Daily temperatures swing about 30.1°F between overnight low and afternoon high. Expect about 5 days with precipitation. Daylight averages about 12h 11m. For travel, September is a comfortable month to visit.
Avg High
86.8°F
Avg Low
56.7°F
Precipitation
1.31 in
Daylight
12h 11m
September records in Sierra Vista
| Date | Record High | Record Low | Record Precip |
|---|---|---|---|
| September 1 | 99.0°F (2011) | 55.0°F (2000) | 0.40 in (2008) |
| September 2 | 98.1°F (2011) | 55.9°F (2024) | 0.55 in (2011) |
| September 3 | 97.0°F (1982) | 55.0°F (2018) | 1.00 in (1996) |
| September 4 | 97.0°F (2002) | 55.0°F (1989) | 0.90 in (1996) |
| September 5 | 100.0°F (2020) | 54.0°F (1984) | 0.60 in (2006) |
| September 6 | 97.0°F (2020) | 53.1°F (1984) | 1.45 in (2006) |
| September 7 | 100.9°F (2023) | 53.1°F (1984) | 1.70 in (2016) |
| September 8 | 97.0°F (2020) | 54.0°F (1984) | 1.35 in (2016) |
| September 9 | 96.1°F (1983) | 54.0°F (1985) | 2.25 in (2014) |
| September 10 | 100.9°F (2023) | 52.0°F (2024) | 1.12 in (1983) |
| September 11 | 102.9°F (2023) | 51.1°F (1986) | 1.13 in (1988) |
| September 12 | 98.1°F (1983) | 52.0°F (1982) | 0.40 in (1984) |
| September 13 | 97.0°F (2004) | 52.0°F (2004) | 0.70 in (2013) |
| September 14 | 96.1°F (2000) | 52.0°F (2016) | 0.79 in (2011) |
| September 15 | 97.0°F (2018) | 51.1°F (1996) | 0.47 in (1995) |
| September 16 | 95.0°F (2018) | 52.0°F (1996) | 0.32 in (2014) |
| September 17 | 95.0°F (2018) | 51.1°F (2012) | 0.65 in (2014) |
| September 18 | 96.1°F (1988) | 52.0°F (1988) | 1.60 in (2014) |
| September 19 | 95.0°F (1997) | 50.0°F (1993) | 0.94 in (2004) |
| September 20 | 93.0°F (1982) | 48.0°F (1985) | 1.28 in (2025) |
| September 21 | 96.1°F (1989) | 48.0°F (1985) | 1.70 in (2013) |
| September 22 | 95.0°F (1989) | 48.0°F (1985) | 1.10 in (2015) |
| September 23 | 93.9°F (2012) | 46.9°F (1985) | 0.30 in (1984) |
| September 24 | 93.9°F (1982) | 46.0°F (1986) | 0.82 in (2003) |
| September 25 | 95.0°F (1982) | 43.0°F (2000) | 2.01 in (2019) |
| September 26 | 95.0°F (2005) | 45.0°F (2017) | 0.72 in (2025) |
| September 27 | 96.1°F (2023) | 46.9°F (1986) | 1.18 in (2025) |
| September 28 | 95.0°F (2023) | 46.9°F (1986) | 1.54 in (1983) |
| September 29 | 96.1°F (2024) | 45.0°F (1985) | 0.74 in (1983) |
| September 30 | 91.9°F (1989) | 46.9°F (1986) | 0.62 in (2016) |