WETTESTSINCE
Puerto Rico · precipitation record 1898–2026

San Juan, PR

THIS MONTH · 2026
DRIEST THIS MONTH ON RECORD
0.53in
1st driest of 128 years · normal 4.68"
📖 San Juan's full Precipitation Almanac →

Accumulation

TODAY
0.17in
29th wettest of 127 yrs
425% of normal
MONTH TO DATE
0.53in
1st driest of 128 yrs
11% of normal
LAST 90 DAYS
5.32in
2nd driest of 128 yrs
35% of normal
YEAR TO DATE
23.0in
26th driest of 128 yrs
81% of normal

Extremes & Streaks

Biggest Day on Record

9.67in
on Aug 15, 1944 · in 129 years

Dry Streak

2days
current run under 0.01" · longest ever 36 days (to Apr 2, 2005)

Wet Streak

0days
consecutive days with rain · longest ever 44 days

Year to Date vs Normal

81%
23.0" of a normal 28.34" · wettest 53.33" (1902) · driest 12.13" (1975)

Wettest & Driest Years

The extremes of a 127-year record (1899–2025) — full calendar-year totals. The long-run average is 58.73" a year.

Wettest Years on Record

1201089.5in
2201188.14in
3193187.55in
4201385.12in
5195084.97in

Driest Years on Record

1199135.53in
2197135.58in
3198035.95in
4197237.72in
5200039.77in

Rainfall by Month

The seasonal rhythm — each month's normal precipitation, with this year's totals in blue. Where the blue bar clears the band, the month ran wetter than usual.
J
F
M
A
M
J
J
A
S
O
N
D
Normal (median)This year
Normally wettest in Nov (~5.68") and driest in Mar (~2.05"). Wettest calendar month ever: Aug 2011, 18.56".

This Day in History · Rainfall

Every year's rainfall on each of the next 7 dates at San Juan — toggle a day below. The tallest bar (ringed) is the wettest on record for that date.

Wettest Jul 28 ever

2.07in
set in 1942

Rain on Jul 28

65%
of 127 years had measurable rain
1899: 1.84″1900: 0.00″1901: 0.00″1902: 0.09″1903: 0.00″1904: 0.64″1905: 0.14″1906: 0.10″1907: 0.19″1908: 0.04″1909: 0.07″1910: 0.00″1911: 0.10″1912: 0.00″1913: 0.00″1914: 0.82″1915: 0.00″1916: 0.04″1917: 0.00″1918: 1.87″1919: 0.12″1920: 0.02″1921: 0.01″1922: 0.04″1923: 0.02″1924: 0.01″1925: 0.00″1926: 0.00″1927: 0.08″1928: 0.05″1929: 0.00″1930: 0.04″1931: 0.05″1932: 0.68″1933: 0.00″1934: 0.35″1935: 0.30″1936: 0.33″1937: 0.04″1938: 0.10″1939: 0.00″1940: 0.00″1941: 0.00″1942: 2.07″1943: 0.19″1944: 0.23″1945: 0.16″1946: 0.13″1947: 0.00″1948: 0.29″1949: 0.03″1950: 0.00″1951: 0.03″1952: 0.36″1953: 0.01″1954: 0.00″1955: 0.00″1956: 0.21″1957: 0.12″1958: 0.72″1959: 0.06″1960: 0.05″1961: 0.00″1962: 0.03″1963: 0.48″1964: 0.00″1965: 0.12″1966: 0.22″1967: 0.12″1968: 0.07″1969: 0.15″1970: 0.07″1971: 0.07″1972: 0.00″1973: 0.02″1974: 0.00″1975: 0.00″1976: 0.00″1977: 0.23″1978: 0.00″1979: 0.21″1980: 0.12″1981: 0.00″1982: 0.00″1983: 0.04″1984: 0.00″1985: 0.02″1986: 0.07″1987: 0.00″1988: 0.32″1989: 0.00″1990: 0.00″1991: 0.19″1992: 0.11″1993: 0.00″1994: 0.12″1995: 0.25″1996: 1.69″1997: 0.00″1998: 0.02″1999: 0.00″2000: 0.05″2001: 0.00″2002: 0.07″2003: 0.16″2004: 0.41″2005: 0.04″2006: 0.17″2007: 0.00″2008: 0.00″2009: 0.00″2010: 0.00″2011: 1.04″2012: 0.16″2013: 0.07″2014: 0.00″2015: 0.00″2016: 0.01″2017: 0.00″2018: 0.07″2019: 0.00″2020: 0.10″2021: 0.25″2022: 0.06″2023: 0.00″2024: 0.52″2025: 0.17″0″1″2″3″1900191019201930194019501960197019801990200020102020

This Year's Rainfall

San Juan's cumulative rainfall so far this year against its own record — the normal accumulation, and the wettest & driest years to date. The bright line is the running total; where it rides the band tells the story at a glance.
San Juan, PR — cumulative rainfall this year vs the record
Download year chart

Rainfall Calendar

San Juan's entire daily record as one heatmap — each row a year, each cell a day, shaded by that day's rainfall. Dry spells read as dark blocks, wet seasons as brighter bands; the whole climate at a glance.
San Juan, PR — daily rainfall every day on record
Download calendar

Sun & Location

Sun & Daylight Today

Sunrise6:01 AM
Sunset7:00 PM
Solar noon12:30 PM
Daylight12h 59m
Local standard time (no DST), level horizon.

Location

18.43°N, 66.01°WPuerto Rico

Nearby Stations

Miami, FL1046 mi NWFort Lauderdale, FL1046 mi NWMarathon, FL1058 mi NWWest Palm Beach, FL1063 mi NWKey West, FL1095 mi WFort Pierce, FL1106 mi NW

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