Highest Daily Low Temperatures in San Antonio History

This is a list of the hottest daily low temperatures ever recorded in San Antonio, Texas history from 1893–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in San Antonio

The highest low temperature for a calendar day in San Antonio, Texas history was 82 °F which has happened 7 times, most recently on Monday August 21, 2023.

Rank	Temperature	Date
1	82 °F	August 21, 2023
1	82 °F	July 11, 2022
1	82 °F	August 29, 2011
1	82 °F	August 28, 2011
1	82 °F	August 11, 2011
1	82 °F	August 5, 1980
1	82 °F	September 4, 1904
8	81 °F	August 13, 2023
8	81 °F	August 12, 2023
8	81 °F	July 13, 2022
8	81 °F	July 8, 2020
8	81 °F	July 24, 2018
8	81 °F	August 21, 2014
8	81 °F	August 17, 2014
8	81 °F	August 31, 2012
8	81 °F	August 12, 2011
8	81 °F	July 29, 2009
8	81 °F	August 4, 1980
8	81 °F	July 27, 1980
8	81 °F	July 15, 1979
8	81 °F	July 14, 1979
8	81 °F	August 14, 1962
8	81 °F	August 13, 1962
8	81 °F	July 27, 1954
8	81 °F	September 28, 1904
8	81 °F	September 26, 1904
8	81 °F	September 20, 1904
8	81 °F	September 19, 1904