1 advisory is in effect for San Juan Municipio, PR. The most serious is a heat advisory.
Since 2016 the National Weather Service has issued about 597 alerts that included San Juan Municipio, roughly 60 a year. The most common is the flood advisory (488 from 2016 to 2025). No tornado warnings were recorded here in that period. 1 tornadoes have touched down in the county since 1950.
Updated from the National Weather Service · lists refresh hourly; the live map loads current alerts directly from the NWS
San Juan and Vicinity; Northeast; Southeast; Eastern Interior; North Central; Central Interior; Ponce and Vicinity; Northwest; Western Interior; Mayaguez and Vicinity; Southwest; Culebra; Vieques; St.Thomas...St. John.. and Adjacent Isla…Until · NWS San Juan PR
HEAT ADVISORY REMAINS IN EFFECT UNTIL 5 PM AST THIS AFTERNOON
Full alert text
* WHAT...This level of heat affects most individuals sensitive to
heat, especially those without effective cooling and/or adequate
hydration.
* WHERE...Puerto Rico and Virgin Islands.
* WHEN...Until 5 PM AST this afternoon.
* IMPACTS...High temperatures or elevated heat indices can worsen
symptoms in people with chronic conditions. They can also increase
the risk of heat-related illness among individuals sensitive to
heat with inadequate cooling or hydration. These risks are highest
across coastal areas, lowlands, interior valleys, and urban zones.
What to do: Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Take extra precautions when outside. Wear lightweight and loose
fitting clothing. Try to limit strenuous activities to early morning
or evening. Take action when you see symptoms of heat exhaustion and
heat stroke.
Map data: NWS, OpenFreeMap, OpenStreetMap
Recent alerts in San Juan Municipio
Issued
Alert
Area
Nov 14, 8:51 AM EST
Heat Advisory
San Juan and Vicinity; Northeast; Southeast; Eastern Interior; North Central; Central Interior; Ponce and Vicinity; Northwest; Western Inter
San Juan Municipio alert history
Alert events that included San Juan Municipio or its forecast zones, from the NWS warning archive.
1 tornadoes have been recorded in San Juan Municipio since 1950. That ranks 6 of 78 counties in Puerto Rico. The most recent was on February 23, 2000 (rated F0).