San Juan Municipio, Puerto Rico
Municipio storm and disaster record · FIPS 72127 · population 341,981 · 48 sq mi
NOAA's Storm Events Database holds 702 records for San Juan Municipio, Puerto Rico from 1950 through June 30, 2026, on 381 days; the most frequent are floods and flash floods (483 records). The deadliest single record is the March 10, 2024 rip current, filed for the forecast zone San Juan And Vicinity, which covers the county: 2 deaths and 2 injuries. FEMA has issued 24 declarations naming the county since 1970, 21 of them for natural hazards; the latest for a natural hazard was “Tropical Storm Ernesto” on August 13, 2024.
The record, 1950 to 2026
Storm records filed for the county each year (2026 to June 30, 2026). Before 1996 NOAA recorded only tornadoes (from 1950), thunderstorm wind and hail (from 1955).
- recorded, no damage figure
- under $100,000
- $100,000 or more
- $1 million or more
- $10 million or more, or a death
- $100 million or more, or 10 deaths
- a year's colour: its recorded damage or deaths
- a year with a death
- 1955: wind and hail recorded from 1955
- 1996: all 48 event types from 1996
- Storm records
- 702on 381 days, 1950 to June 30, 2026
- Deaths recorded
- 3733 injuries
- Damage, 2025 dollars
- $561Mas filed (scale steps before 1993)
- Tornadoes
- 2strongest F0
- FEMA declarations
- 24latest 2024
Source: NOAA NCEI Storm Events Database, records through June 30, 2026 (file revision 20260918); damage converted to 2025 dollars with the BLS CPI-U. Search the record at NCEI. BLS consumer price index.
What hazards hit San Juan Municipio most?
The most frequent records are floods and flash floods: 483 since 1997. Census land area gives no figure for San Juan Municipio under this code, so it carries no per-area rank.
| Hazard | Records | Days | First, last | Killed | Injured | Damage | Rank in state |
|---|---|---|---|---|---|---|---|
| Floods | 483 | 223 | 1997-2026 | 2 | 2 | $16M | – |
| Rip currents and high surf | 48 | 47 | 1998-2026 | 35 | 22 | $484K | – |
| Landslides and avalanches | 39 | 25 | 2003-2026 | 0 | 1 | $56K | – |
| Heat | 28 | 27 | 2023-2024 | 0 | 0 | – | – |
| Heavy rain | 27 | 22 | 1998-2019 | 0 | 7 | $101K | – |
| Severe thunderstorm wind | 23 | 20 | 1995-2025 | 0 | 1 | $214K | – |
| Hurricanes and tropical storms | 18 | 13 | 1997-2024 | 0 | 0 | $544M | – |
| Fog, smoke and funnel clouds | 17 | 16 | 1998-2022 | 0 | 0 | $500K | – |
| High wind and dust storms | 10 | 9 | 1998-2025 | 0 | 0 | $35K | – |
| Lightning | 3 | 3 | 2022-2025 | 0 | 0 | $18K | – |
| Drought | 2 | 2 | 1997-2000 | 0 | 0 | – | – |
| Tornadoes | 2 | 2 | 1995-2000 | 0 | 0 | – | – |
| Extreme cold | 1 | 1 | 2000-2000 | 0 | 0 | – | – |
| Hail | 1 | 1 | 2000-2000 | 0 | 0 | – | – |
Source: NOAA NCEI Storm Events Database (county and forecast-zone records attributed to the county; a zone record shows its own totals on each county it covers). Days: dates with at least one record of the hazard in the county. Ranks: days with a record per 1,000 square miles of land (Census Bureau 2024 Gazetteer), since 1950 for tornadoes, 1955 for hail and thunderstorm wind, 1996 for the rest.
How many tornadoes has San Juan Municipio had?
NOAA records 2 tornadoes in San Juan Municipio from 1995 to 2000, the strongest rated F0, with 0 deaths and 0 injuries recorded in the county. A tornado that crossed a county line is counted in each county it touched, with the length of its path inside the county.
Counted as whole tornadoes rather than county records, the Storm Prediction Center's database holds 1 tornado whose track touched San Juan Municipio since 1950 (NOAA's county records number 2: they file a crossing tornado once per county segment, and the two databases differ on some tracks); along their whole tracks they killed 0 people.
Map of the strongest tornado tracks in Puerto Rico.
Every tornado record filed for San Juan Municipio (2)
| Date | Place | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2000-02-23 | Caguas, San Juan Municipio | F0 0.2 mi x 10 yd | 0 | 0 | – |
| 1995-05-01 | Guaynabo, San Juan Municipio | F0 0.2 mi x 10 yd | 0 | 0 | – |
Source: NOAA NCEI Storm Events Database, tornado records by county (path length in the county, maximum width); ratings as published: F scale before February 1, 2007, EF scale after. Whole-track figures: NOAA Storm Prediction Center tornado database (1950-2025). SPC severe weather database.
When was the last damaging storm in San Juan Municipio?
The most recent record with damage, injuries or deaths is the May 12, 2026 flash flood ($5,000 in damage in 2025 dollars).
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2026-05-12 | Flash FloodSan Juan Municipio | 0 | 0 | $5K | |
| 2026-05-12 | Flash FloodSan Juan Municipio | 0 | 0 | $5K | |
| 2026-05-12 | Flash FloodSan Juan Municipio | 0 | 0 | $5K | |
| 2026-05-12 | FloodSan Juan Municipio | 0 | 0 | $5K | |
| 2026-05-12 | FloodSan Juan Municipio | 0 | 0 | $5K | |
| 2026-05-12 | FloodSan Juan Municipio | 0 | 0 | $5K | |
| 2026-05-12 | FloodSan Juan Municipio | 0 | 0 | $2K | |
| 2026-04-04 | Rip CurrentBayamón Municipio and 7 more · forecast zone San Juan And Vicinity | 0 | 0 | – | |
| 2026-04-04 | Debris FlowSan Juan Municipio | 0 | 0 | $1K | |
| 2026-04-04 | FloodSan Juan Municipio | 0 | 0 | $1K | |
| 2026-04-03 | Rip CurrentBayamón Municipio and 7 more · forecast zone San Juan And Vicinity | 0 | 0 | – | |
| 2026-03-26 | FloodSan Juan Municipio | 0 | 0 | $3K |
Source: NOAA NCEI Storm Events Database; every record of 2025-2026 is listed, earlier ones when they caused deaths, injuries or $250,000 of damage (2025 dollars), and every tornado.
The deadliest and costliest records
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 2024-03-10 | Rip CurrentBayamón Municipio and 7 more · forecast zone San Juan And Vicinity Two males were swept away by rip currents near Ventana del Mar, behind La Concha Hotel in Condado. According to initial reports, a local resident tried to rescue a tourist who had been pulled away by the currents. They both drowned. The first victim was identified as a 20-year-old male from Washington visiting the ... | 2 | 2 | – | |
| 2021-11-09 | Rip CurrentBayamón Municipio and 6 more · forecast zone San Juan And Vicinity A 43-year-old male and a 46-year-old male swimming along Courtyard by Marriot Hotel in Balneario Carolina drowned in a rip current. | 2 | 0 | – | |
| 2021-04-16 | Rip CurrentBayamón Municipio and 6 more · forecast zone San Juan And Vicinity Two people(uncle/niece) drowned due to rip currents at the beach located behind the Marriott Hotel in the area of Condado in San Juan. | 2 | 0 | – | |
| 2020-11-08 | Rip CurrentBayamón Municipio and 6 more · forecast zone San Juan And Vicinity Female swept by rip current and her partner tried to rescue her and both drowned at La Concha Beach in Condado. The couple were from Georgia. | 2 | 0 | – | |
| 2004-10-26 | High SurfBayamón Municipio and 6 more · forecast zone San Juan And Vicinity Two persons drowned in the Piñones, Vacia Talega Beach overtaken by strong undertow. | 2 | 0 | – | |
| 2026-03-18 | Rip CurrentBayamón Municipio and 7 more · forecast zone San Juan And Vicinity A man drowned after being swept away by rip currents at Condado Beach in San Juan, Puerto Rico. The man lost his life when he entered the water to rescue two of his friends. | 1 | 3 | – | |
| 2022-11-18 | Rip CurrentBayamón Municipio and 6 more · forecast zone San Juan And Vicinity A 15-year-old male drowned when he was swept by a rip current in Isla Verde, near Condominio Condesa del Mar. Two others (under 18 years-old) were rescued. | 1 | 3 | – | |
| 2026-01-01 | Rip CurrentBayamón Municipio and 7 more · forecast zone San Juan And Vicinity A 53-year-old man drowned at Ocean Park Beach after being pulled by a rip current while attempting to assist a family member in the water. | 1 | 2 | – |
| Date | Record | Character | Killed | Injured | Damage |
|---|---|---|---|---|---|
| 1999-11-25 | Flash FloodSan Juan Municipio | 0 | 0 | $1.8M | |
| 1998-10-28 | Flash FloodCountywide, San Juan Municipio | 0 | 0 | $1.4M | |
| 1998-08-11 | Flash FloodNorth Portion, San Juan Municipio | 0 | 0 | $905K | |
| 1998-10-22 | Flash FloodCountywide, San Juan Municipio | 0 | 0 | $905K | |
| 2004-05-23 | FloodBayamón Municipio and 6 more · forecast zone San Juan And Vicinity | 0 | 0 | $781K | |
| 2001-07-29 | Volcanic AshBayamón Municipio and 6 more · forecast zone San Juan And Vicinity | 0 | 0 | $500K | |
| 1998-08-24 | Flash FloodCountywide, San Juan Municipio | 0 | 0 | $453K | |
| 1999-06-17 | Flash FloodCentral Portion, San Juan Municipio | 0 | 0 | $354K |
Source: NOAA NCEI Storm Events Database: deaths and injuries direct and indirect; damage is property plus crops as estimated by the National Weather Service, converted to 2025 dollars.
Is it getting more frequent?
Records per decade for San Juan Municipio's most frequent hazards. Counts rose everywhere after 1996, when NOAA began recording every event type, so compare decades within a hazard's complete period only (the shaded cells come before it).
| Hazard | 1950s | 1960s | 1970s | 1980s | 1990s | 2000s | 2010s | 2020-26 |
|---|---|---|---|---|---|---|---|---|
| Floods | – | – | – | – | 69 | 42 | 140 | 232 |
| Rip currents and high surf | – | – | – | – | 1 | 11 | 9 | 27 z |
| Landslides and avalanches | – | – | – | – | 0 | 27 | 7 | 5 |
| Heat | – | – | – | – | 0 | 0 | 0 | 28 |
| Heavy rain | – | – | – | – | 7 | 12 | 8 | 0 |
| Severe thunderstorm wind | 0 | 0 | 0 | 0 | 2 | 3 | 6 | 12 |
Rip currents and high surf in the 2020-26: 27 records against 9 in the decade before, 27 of them forecast-zone records. Cells marked z rose mostly through zone records. The local National Weather Service office files these once per forecast zone, so a change in how it draws its zones or splits a storm into records moves this count as much as the weather does; read it beside the San Juan Municipio days with a record above.
Source: NOAA NCEI Storm Events Database, records per calendar decade; zone records from the CZ_TYPE field (Z).
What time of year?
Records by month in San Juan Municipio. The two busiest months are in violet.
The values, month by month
Jan 22 · Feb 24 · Mar 29 · Apr 67 · May 102 · Jun 49 · Jul 40 · Aug 79 · Sep 78 · Oct 94 · Nov 72 · Dec 46 (records).
Source: NOAA NCEI Storm Events Database, records by the month they began.
Federal disaster declarations for San Juan Municipio
FEMA's register lists 24 declarations that include San Juan Municipio: 12 major disasters, 12 emergencies and 0 fire management assistance declarations. Most were for hurricane (14) and severe storm (3).
| Declared | Number | Type | Title |
|---|---|---|---|
| 2024-08-13 | EM-3610 | Severe Storm | Tropical Storm Ernesto |
| 2022-09-21 | DR-4671 | Hurricane | Hurricane Fiona |
| 2022-09-18 | EM-3583 | Hurricane | Tropical Storm Fiona |
| 2020-08-22 | EM-3537 | Hurricane | Tropical Storm Laura |
| 2020-07-29 | EM-3532 | Hurricane | Potential Tropical Cyclone Nine |
| 2020-03-27 | DR-4493 | Biological | Covid-19 Pandemic |
| 2020-03-13 | EM-3452 | Biological | Covid-19 |
| 2020-01-07 | EM-3426 | Earthquake | Earthquakes |
| 2019-08-27 | EM-3417 | Severe Storm | Tropical Storm Dorian |
| 2017-09-20 | DR-4339 | Hurricane | Hurricane Maria |
| 2017-09-18 | EM-3391 | Hurricane | Hurricane Maria |
| 2017-09-10 | DR-4336 | Hurricane | Hurricane Irma |
| 2011-08-27 | DR-4017 | Hurricane | Hurricane Irene |
| 2011-08-22 | EM-3326 | Hurricane | Hurricane Irene |
| 2009-10-24 | EM-3306 | Fire | Explosions and Fire |
| 2004-09-17 | DR-1552 | Severe Storm | Tropical Storm Jeanne and Resulting Landslides and Mudslides |
| 1999-11-17 | EM-3151 | Hurricane | Hurricane Lenny |
| 1998-09-24 | DR-1247 | Hurricane | Hurricane Georges - 18 Sep 98 |
| 1996-11-21 | EM-3124 | Other | Gas Leak Explosion |
| 1996-09-11 | DR-1136 | Hurricane | Hurricane Hortense |
| 1989-09-21 | DR-842 | Hurricane | Hurricane Hugo |
| 1979-09-02 | DR-597 | Hurricane | Hurricane David |
| 1975-09-19 | DR-483 | Flood | Tropical Storm Elioise |
| 1970-10-12 | DR-296 | Flood | Heavy Rains & Flooding |
Source: FEMA OpenFEMA Disaster Declarations Summaries (v2), declarations through October 2, 2026; one declaration is counted once however many areas it names. OpenFEMA dataset page.
Counties that share a border with San Juan Municipio
Source: U.S. Census Bureau county adjacency file; NOAA NCEI Storm Events Database, records since 1950. The Census Bureau's adjacency file.
Next
- Tornadoes in Puerto RicoEvery Puerto Rico tornado since 1950 and the counties with the most per square mile
- Floods in Puerto RicoThe state's floods and flash floods, by county, year and month
- The Puerto Rico recordEvery hazard in the state, its deadliest events and its federal declarations
- FEMA's risk rating for each hazard in San Juan MunicipioThe hazard risk calculator: 18 hazards beside the county's record
- Download San Juan Municipio's FEMA declarations (CSV)24 rows: every declaration that named the county, for your own analysis