Weather on August 13
San Antonio, TX
55 Years of Data
Avg High
96°F
Avg Low
75°F
Warmest
2023
92°F avg
Coldest
2003
77°F avg
About This Date
August 13th in San Antonio, TX typically brings hot summer weather, with average highs around 96°F and lows near 75°F. Over 55 years of records, the warmest August 13th was in 2023 (92°F average), while the coldest was 2003 (77°F) — a 15°F range across recorded history. Rain or other precipitation has occurred on about 13% of August 13th dates historically, with the wettest August 13th recording 2.34" of rain. The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
The last decade has been 2.3°F warmer on this date compared to 20-30 years ago.
Planning for August 13th in San Antonio, TX? Stay hydrated and seek shade during peak afternoon hours.
Warming Trend
0.7°F per decade on this date
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 100° | 80° | 90° | — | — |
| 2024 | 100° | 79° | 89° | — | — |
| 2023warmest | 104° | 81° | 92° | — | — |
| 2022 | 102° | 77° | 90° | — | — |
| 2021 | 92° | 77° | 84° | — | — |
| 2020 | 100° | 77° | 89° | — | — |
| 2019 | 100° | 78° | 89° | — | — |
| 2018 | 84° | 72° | 78° | 1.93" | — |
| 2017 | 97° | 75° | 86° | — | — |
| 2016 | 89° | 76° | 82° | 0.3" | — |
| 2015 | 102° | 78° | 90° | — | — |
| 2014 | 101° | 74° | 87° | — | — |
| 2013 | 96° | 74° | 85° | — | — |
| 2012 | 99° | 77° | 88° | — | — |
| 2011 | 101° | 78° | 89° | — | — |
| 2010 | 95° | 78° | 87° | — | — |
| 2009 | 103° | 72° | 87° | — | — |
| 2008 | 85° | 71° | 78° | 1.22" | — |
| 2007 | 95° | 74° | 84° | — | — |
| 2006 | 99° | 74° | 86° | — | — |
| 2005 | 94° | 76° | 85° | — | — |
| 2004 | 89° | 64° | 77° | — | — |
| 2003coldest | 88° | 67° | 77° | — | — |
| 2002 | 93° | 74° | 83° | — | — |
| 2001 | 99° | 75° | 87° | — | — |
| 2000 | 103° | 73° | 88° | — | — |
| 1999 | 100° | 75° | 88° | — | — |
| 1998 | 98° | 75° | 87° | — | — |
| 1997 | 98° | 77° | 88° | — | — |
| 1996 | 99° | 74° | 86° | — | — |
| 1995 | 97° | 76° | 86° | — | — |
| 1994 | 97° | 75° | 86° | — | — |
| 1993 | 99° | 77° | 88° | — | — |
| 1992 | 91° | 74° | 82° | 0.03" | — |
| 1991 | 100° | 77° | 89° | — | — |
| 1990 | 94° | 74° | 84° | — | — |
| 1989 | 94° | 66° | 80° | — | — |
| 1988 | 99° | 78° | 88° | — | — |
| 1987 | 99° | 76° | 87° | — | — |
| 1986 | 96° | 75° | 86° | — | — |
| 1985 | 96° | 76° | 86° | — | — |
| 1984 | 92° | 73° | 82° | 0.33" | — |
| 1983 | 95° | 73° | 84° | — | — |
| 1982 | 99° | 75° | 87° | — | — |
| 1981 | 98° | 74° | 86° | — | — |
| 1980 | 94° | 77° | 85° | — | — |
| 1979 | 92° | 78° | 85° | — | — |
| 1978 | 94° | 77° | 85° | — | — |
| 1977 | 93° | 73° | 83° | — | — |
| 1976 | 94° | 75° | 84° | — | — |
| 1975 | 92° | 73° | 82° | — | — |
| 1974 | 92° | 76° | 84° | — | — |
| 1973 | 92° | 74° | 83° | 0.25" | — |
| 1972 | 92° | 77° | 84° | — | — |
| 1971 | 83° | 74° | 78° | 2.34" | — |
55 years of data from SAN ANTONIO INCARNATE WORD