Weather on September 1
San Antonio, TX
55 Years of Data
Avg High
94°F
Avg Low
73°F
Warmest
2020
90°F avg
Coldest
2017
75°F avg
About This Date
September 1st in San Antonio, TX typically brings hot fall weather, with average highs around 94°F and lows near 73°F. Over 55 years of records, the warmest September 1st was in 2020 (90°F average), while the coldest was 2017 (75°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 20% of September 1st dates historically, with the wettest September 1st recording 3.18" of rain. Temperatures on this date have remained relatively stable over the past several decades.
Temperatures on this date have remained relatively stable over the past several decades.
Planning for September 1st in San Antonio, TX? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 90° | 74° | 82° | — | — |
| 2024 | 93° | 73° | 83° | — | — |
| 2023 | 99° | 69° | 84° | — | — |
| 2022 | 91° | 72° | 81° | — | — |
| 2021 | 95° | 72° | 83° | — | — |
| 2020warmest | 100° | 81° | 90° | — | — |
| 2019 | 97° | 75° | 86° | — | — |
| 2018 | 95° | 74° | 84° | — | — |
| 2017coldest | 90° | 61° | 75° | — | — |
| 2016 | 94° | 73° | 83° | — | — |
| 2015 | 95° | 75° | 85° | — | — |
| 2014 | 99° | 79° | 89° | — | — |
| 2013 | 99° | 74° | 86° | — | — |
| 2012 | 98° | 77° | 88° | — | — |
| 2011 | 100° | 74° | 87° | — | — |
| 2010 | 97° | 78° | 87° | — | — |
| 2009 | 90° | 71° | 80° | — | — |
| 2008 | 91° | 71° | 81° | — | — |
| 2007 | 88° | 70° | 79° | 0.66" | — |
| 2006 | 98° | 71° | 85° | — | — |
| 2005 | 100° | 72° | 86° | — | — |
| 2004 | 93° | 70° | 81° | — | — |
| 2003 | 92° | 75° | 83° | 0.05" | — |
| 2002 | 93° | 71° | 82° | — | — |
| 2001 | 86° | 71° | 79° | 3.18" | — |
| 2000 | 102° | 74° | 88° | — | — |
| 1999 | 95° | 72° | 83° | — | — |
| 1998 | 94° | 72° | 83° | 0.03" | — |
| 1997 | 95° | 73° | 84° | — | — |
| 1996 | 88° | 69° | 78° | — | — |
| 1995 | 93° | 71° | 82° | — | — |
| 1994 | 95° | 76° | 85° | 0.71" | — |
| 1993 | 97° | 71° | 84° | — | — |
| 1992 | 96° | 78° | 87° | — | — |
| 1991 | 93° | 71° | 82° | 0.03" | — |
| 1990 | 99° | 70° | 84° | 2.08" | — |
| 1989 | 100° | 79° | 89° | — | — |
| 1988 | 97° | 72° | 84° | — | — |
| 1987 | 92° | 68° | 80° | — | — |
| 1986 | 90° | 75° | 82° | 0.76" | — |
| 1985 | 100° | 70° | 85° | — | — |
| 1984 | 93° | 73° | 83° | — | — |
| 1983 | 97° | 75° | 86° | — | — |
| 1982 | 97° | 76° | 86° | — | — |
| 1981 | 94° | 75° | 84° | 0.08" | — |
| 1980 | 95° | 76° | 85° | — | — |
| 1979 | 95° | 77° | 86° | — | — |
| 1978 | 88° | 73° | 80° | 0.1" | — |
| 1977 | 90° | 74° | 82° | 0.18" | — |
| 1976 | 89° | 76° | 82° | — | — |
| 1975 | 86° | 71° | 79° | — | — |
| 1974 | 90° | 74° | 82° | — | — |
| 1973 | 92° | 75° | 83° | — | — |
| 1972 | 93° | 70° | 81° | — | — |
| 1971 | 92° | 72° | 82° | — | — |
55 years of data from SAN ANTONIO INCARNATE WORD