FirstAlerts

Heat Advisory Extended for Puerto Rico and Virgin Islands Until 5 PM AST

The National Weather Service has extended the heat advisory for portions of Puerto Rico and the Virgin Islands, now in effect until 5 PM AST on August 29.

4 reports on this incident · first at Aug 29, 2026, 1:41 a.m. ET

By AI ReporterWritten Aug 29, 2026, 1:53 a.m. ET
The National Weather Service in San Juan has extended the for portions of Puerto Rico and the Virgin Islands, now in effect until 5 PM AST on Saturday, August 29, 2026. The , which began at 10 AM AST, was originally set to expire earlier but has been pushed back, according to the issued at 1:33 AM AST. The covers zones, including San Juan and Vicinity, Northeast, Southeast, Eastern Interior, North Central, Ponce and Vicinity, Northwest, Mayaguez and Vicinity, Southwest, Culebra, Vieques, St. Thomas...St. John...and Adjacent Islands, and St Croix. Affected cities include Ponce, Arecibo, and Christiansted, among others. The National Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. Extra precautions are recommended when outside, including wearing lightweight and loose-fitting clothing and limiting strenuous activities to early morning or evening. Take action if symptoms of heat exhaustion or heat stroke appear.

Earlier reports

  1. Aug 29, 2026, 1:51 a.m. ET

    Heat Advisory Issued for San Juan and Vicinity, Northeast, Southeast Starting 10 AM AST

    The National Weather Service in San Juan, Puerto Rico, has issued a Heat Advisory for August 29, 2026, from 10 AM to 5 PM AST. The advisory will be in effect from 10 AM AST this morning until 5 PM AST this afternoon. It covers portions of Puerto Rico and the Virgin Islands, including San Juan and Vicinity, Northeast, Southeast, Eastern Interior, North Central, Ponce and Vicinity, Northwest, Mayaguez and Vicinity, Southwest, Culebra, Vieques, St. Thomas...St. John...and Adjacent Islands, and St Croix.

    The advisory warns that hot temperatures and high humidity may cause heat illnesses. This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. The National Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. They also recommend wearing lightweight and loose fitting clothing, limiting strenuous activities to early morning or evening, and taking action when seeing symptoms of heat exhaustion and heat stroke.

  2. Aug 29, 2026, 1:47 a.m. ET

    Heat Advisory for San Juan and Vicinity, Northeast, Southeast Until 5 PM AST

    The National Weather Service in San Juan has issued a Heat Advisory for portions of Puerto Rico and the Virgin Islands, effective from 10 AM to 5 PM AST on August 29, 2026. The advisory covers 13 zones, including San Juan and Vicinity, Northeast, Southeast, Eastern Interior, North Central, Ponce and Vicinity, Northwest, 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, hot temperatures and high humidity may cause heat illnesses. This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. The Weather Service advises drinking plenty of fluids, staying in an air-conditioned room, staying out of the sun, and checking on relatives and neighbors. It also recommends wearing lightweight and loose fitting clothing, limiting strenuous activities to early morning or evening, and taking action when seeing symptoms of heat exhaustion and heat stroke.

  3. Aug 29, 2026, 1:41 a.m. ETFirst report

    Heat Advisory for San Juan and Vicinity, Northeast, Southeast Until 5 PM AST

    The National Weather Service in San Juan, Puerto Rico, has issued a Heat Advisory for August 29, 2026, from 10:00 AM to 5:00 PM AST. The advisory covers portions of Puerto Rico and the Virgin Islands, including 13 zones such as San Juan and Vicinity, Northeast, Southeast, Eastern Interior, North Central, Ponce and Vicinity, Northwest, Mayaguez and Vicinity, Southwest, Culebra, Vieques, St. Thomas...St. John...and Adjacent Islands, and St Croix. The advisory expires at 5:00 PM AST on August 29.

    The advisory warns that hot temperatures and high humidity may cause heat illnesses. This level of heat affects most individuals sensitive to heat, especially those without effective cooling and/or adequate hydration. The advisory was issued at 1:33 AM AST on August 29.

    Residents are advised to drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. When outside, take extra precautions, wear lightweight and loose fitting clothing, and limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke.

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Revision history

  1. Version 129 Aug 2026, 05:53current

    First published.

  2. Version 129 Aug 2026, 05:47current

    First published.

  3. Version 129 Aug 2026, 05:41current

    First published.

  4. Version 129 Aug 2026, 05:51current

    First published.

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