Most Daily Precipitation in San Juan History

This is a list of the largest daily precipitation totals ever recorded in San Juan, Puerto Rico history from 1956–2024.

What's the Most It Has Ever Rained in San Juan?

According to NOAA records, the most rain that San Juan, Puerto Rico has ever received in a single day is 9.2 inches which occurred on Thursday July 18, 2013.

Also see most rain in: 2 days | 1 week | 1 month

San Juan Most Rain in One Day

Rank	Precipitation	Date
1	9.2 inches	July 18, 2013
2	8.8 inches	September 18, 1989
3	8.2 inches	September 10, 1996
4	7.1 inches	September 20, 2017
5	7.1 inches	April 15, 1988
6	7.1 inches	November 25, 1979
7	7.0 inches	December 12, 1981
8	5.8 inches	April 23, 2016
9	5.8 inches	August 22, 2011
10	5.2 inches	October 27, 2023
11	5.0 inches	January 26, 1969
12	4.9 inches	April 21, 2005
13	4.7 inches	April 23, 1973
14	4.6 inches	August 23, 2000
15	4.5 inches	May 13, 1986
16	4.5 inches	July 30, 2020
17	4.4 inches	February 24, 2020
17	4.4 inches	October 6, 1970
19	4.2 inches	August 23, 2011
20	4.1 inches	September 18, 2022