Heat Advisory for San Juan and Vicinity, Northeast, Southeast Until 5 PM AST
The National Weather Service has issued a Heat Advisory for San Juan and Vicinity, Northeast, Southeast, and other areas, in effect until 5 PM AST today.
4 reports on this incident · first at Sep 5, 2026, 2:23 a.m. ET
Earlier reports
Sep 5, 2026, 2:54 a.m. ET
Heat Advisory for San Juan and Vicinity, Northeast, Southeast Until 5 PM AST September 5
The National Weather Service in San Juan, Puerto Rico, has issued a Heat Advisory for September 5, 2026, from 10 AM to 5 PM AST. The advisory covers portions of Puerto Rico and the Virgin Islands, including 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 Islands, and St Croix. The advisory expires at 5 PM AST this afternoon.
According to the advisory, this level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions and increase the risk of heat-related illness among those sensitive to heat with inadequate cooling or hydration. Risks are highest across coastal areas, lowlands, interior valleys, and urban zones.
The National Weather Service recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, OSHA recommends scheduling frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.
Sep 5, 2026, 2:23 a.m. ET
Heat Advisory for San Juan and Vicinity, Northeast, Southeast: Starts 10 AM AST Saturday
The National Weather Service in San Juan has issued a Heat Advisory for portions of Puerto Rico and the Virgin Islands, warning that the expected heat can worsen symptoms in people with chronic conditions and increase the risk of heat-related illness among those sensitive to heat with inadequate cooling or hydration. The advisory will be in effect from 10 AM to 5 PM AST on September 5, 2026, and covers 15 zones including 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 Islands, and St Croix. It will lift at 5 PM AST.
The advisory states that this level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. Risks are highest across coastal areas, lowlands, interior valleys, and urban zones. The Weather Service recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. For outdoor work, OSHA recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location; heat stroke is an emergency, and the advisory urges calling 9 1 1.
Sep 5, 2026, 2:23 a.m. ETFirst report
Heat Advisory Issued for San Juan and Vicinity, Northeast, Southeast Through 5 PM AST
The National Weather Service San Juan PR has issued a Heat Advisory effective September 5, 2026, from 10 AM to 5 PM AST. The advisory covers portions of Puerto Rico and the Virgin Islands, including 15 zones such as 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 Islands, and St. Croix.
According to the advisory, this level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. High temperatures or elevated heat indices can worsen symptoms in people with chronic conditions and increase the risk of heat-related illness among sensitive individuals with inadequate cooling or hydration. Risks are highest across coastal areas, lowlands, interior valleys, and urban zones.
The advisory remains in effect until 5 PM AST this afternoon. The National Weather Service recommends drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. When outdoors, wear lightweight and loose-fitting clothing and limit strenuous activities to early morning or evening. For outdoor work, OSHA recommends frequent rest breaks in shaded or air-conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency; call 9 1 1.
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- Version 15 Sept 2026, 07:24current
First published.
- Version 15 Sept 2026, 06:23current
First published.
- Version 15 Sept 2026, 06:23current
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- Version 15 Sept 2026, 06:54current
First published.
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