Highest Daily Low Temperatures in San Juan History

This is a list of the hottest daily low temperatures ever recorded in San Juan, Puerto Rico history from 1956–2024 based on data from the NOAA.

Highest temperatures all-time

Record for the highest daily low temperature in San Juan

The highest low temperature for a calendar day in San Juan, Puerto Rico history was 83 °F which has happened 10 times, most recently on Thursday September 14, 2023.

Rank	Temperature	Date
1	83 °F	September 14, 2023
1	83 °F	August 15, 2023
1	83 °F	September 6, 2021
1	83 °F	September 17, 2020
1	83 °F	September 4, 2016
1	83 °F	October 4, 2015
1	83 °F	August 11, 1995
1	83 °F	August 14, 1993
1	83 °F	July 14, 1983
1	83 °F	August 20, 1982
11	82 °F	October 16, 2023
11	82 °F	October 7, 2023
11	82 °F	October 6, 2023
11	82 °F	October 2, 2023
11	82 °F	September 30, 2023
11	82 °F	September 29, 2023
11	82 °F	September 13, 2023
11	82 °F	August 28, 2023
11	82 °F	August 25, 2023
11	82 °F	August 24, 2023
11	82 °F	August 16, 2023
11	82 °F	July 19, 2023
11	82 °F	July 11, 2023
11	82 °F	June 5, 2023
11	82 °F	June 4, 2023
11	82 °F	June 3, 2023
11	82 °F	August 8, 2022
11	82 °F	August 1, 2022
11	82 °F	September 4, 2021
11	82 °F	August 23, 2021
11	82 °F	August 22, 2021
11	82 °F	August 30, 2020
11	82 °F	August 18, 2020
11	82 °F	August 16, 2020
11	82 °F	August 8, 2020
11	82 °F	August 4, 2020
11	82 °F	September 14, 2019
11	82 °F	August 16, 2019
11	82 °F	September 23, 2017
11	82 °F	September 22, 2017
11	82 °F	October 20, 2016
11	82 °F	October 5, 2015
11	82 °F	October 2, 2015
11	82 °F	June 27, 2014
11	82 °F	June 26, 2014
11	82 °F	June 21, 2014
11	82 °F	August 4, 2013
11	82 °F	July 16, 2009
11	82 °F	August 14, 2008
11	82 °F	July 30, 2008
11	82 °F	September 7, 1997
11	82 °F	September 8, 1995
11	82 °F	August 28, 1995
11	82 °F	August 12, 1995
11	82 °F	August 4, 1995
11	82 °F	August 9, 1991
11	82 °F	July 13, 1983
11	82 °F	July 9, 1983
11	82 °F	July 29, 1981
11	82 °F	June 8, 1981
11	82 °F	July 30, 1980
11	82 °F	July 11, 1980
11	82 °F	July 30, 1979
11	82 °F	July 23, 1979
11	82 °F	June 22, 1979
11	82 °F	August 4, 1974
11	82 °F	August 13, 1973
11	82 °F	August 20, 1970