Weather on October 18
San Antonio, TX
55 Years of Data
About This Date
October 18th in San Antonio, TX typically brings warm fall weather, with average highs around 81°F and lows near 59°F. Over 55 years of records, the warmest October 18th was in 1993 (83°F average), while the coldest was 2018 (55°F) — a 28°F range across recorded history. Rain or other precipitation has occurred on about 15% of October 18th dates historically, with the wettest October 18th recording 36.4" 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 October 18th in San Antonio, TX? Stay hydrated and seek shade during peak afternoon hours.
| Year | High | Low | Avg | Precip | Snow |
|---|---|---|---|---|---|
| 2025 | 93° | 73° | 83° | — | — |
| 2024 | 82° | 61° | 71° | — | — |
| 2023 | 76° | 41° | 58° | — | — |
| 2022 | 72° | 58° | 65° | — | — |
| 2021 | 71° | 45° | 58° | — | — |
| 2020 | 76° | 59° | 67° | — | — |
| 2019 | 73° | 51° | 62° | — | — |
| 2018coldest | 59° | 50° | 55° | — | — |
| 2017 | 78° | 43° | 60° | — | — |
| 2016 | 90° | 74° | 82° | — | — |
| 2015 | 84° | 59° | 72° | — | — |
| 2014 | 89° | 69° | 79° | — | — |
| 2013 | 72° | 53° | 62° | — | — |
| 2012 | 90° | 67° | 78° | — | — |
| 2011 | 89° | 63° | 76° | — | — |
| 2010 | 84° | 57° | 71° | — | — |
| 2009 | 76° | 51° | 63° | — | — |
| 2008 | 80° | 54° | 67° | — | — |
| 2007 | 91° | 72° | 81° | — | — |
| 2006 | 91° | 60° | 76° | — | — |
| 2005 | 85° | 59° | 72° | — | — |
| 2004 | 90° | 73° | 81° | — | — |
| 2003 | 82° | 51° | 67° | — | — |
| 2002 | 77° | 50° | 64° | — | — |
| 2001 | 70° | 42° | 56° | — | — |
| 2000 | 79° | 58° | 68° | 6.05" | — |
| 1999 | 64° | 48° | 56° | 0.38" | — |
| 1998 | 77° | 69° | 73° | 36.4" | — |
| 1997 | 79° | 47° | 63° | — | — |
| 1996 | 74° | 52° | 63° | — | — |
| 1995 | 84° | 58° | 71° | — | — |
| 1994 | 77° | 67° | 72° | 5.16" | — |
| 1993warmest | 91° | 76° | 83° | — | — |
| 1992 | 77° | 59° | 68° | — | — |
| 1991 | 87° | 59° | 73° | — | — |
| 1990 | 76° | 48° | 62° | — | — |
| 1989 | 66° | 51° | 59° | — | — |
| 1988 | 90° | 67° | 78° | — | — |
| 1987 | 86° | 68° | 77° | — | — |
| 1986 | 80° | 56° | 68° | — | — |
| 1985 | 86° | 75° | 81° | — | — |
| 1984 | 87° | 73° | 80° | 0.03" | — |
| 1983 | 86° | 71° | 79° | — | — |
| 1982 | 84° | 56° | 70° | — | — |
| 1981 | 78° | 53° | 66° | 0.1" | — |
| 1980 | 77° | 63° | 70° | 2.03" | — |
| 1979 | 89° | 73° | 81° | — | — |
| 1978 | 81° | 51° | 66° | — | — |
| 1977 | 84° | 55° | 70° | — | — |
| 1976 | 73° | 45° | 59° | — | — |
| 1975 | 78° | 45° | 61° | — | — |
| 1974 | 82° | 48° | 65° | — | — |
| 1973 | 81° | 50° | 65° | — | — |
| 1972 | 90° | 75° | 82° | — | — |
| 1971 | 86° | 77° | 82° | 1.04" | — |
San Antonio, TX Temperature Range by Month
Average monthly highs and lows. The shaded band shows the typical daily temperature range.
San Antonio, TX Monthly Precipitation
Average rainfall and snowfall per month, in inches.
San Antonio, TX Daily Temperature Calendar
Average daily high temperature for every day of the year. Each cell is the climatological mean for that calendar day across 55 years of NOAA data.
Best Time to Visit San Antonio, TX
San Antonio, TX has no months that meet our "pleasant" threshold — every season has tradeoffs.