Saint John Island, VI
Alerts
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Briefings
From the Forecaster
Heat Risk Returns Today - Heat Advisory
Created by the NWS San Juan WFO
📅 Saturday, September 19, 2026 | Sábado, 19 de septiembre de 2026 — The heat never really left, but higher heat risk is back today. A Heat Advisory is in effect from 10 AM to 5 PM AST for Puerto Rico, including Culebra and Vieques, and for St. Thomas, St. John, and St. Croix. Most heat-sensitive people may be affected; drink water often, take frequent breaks, and limit strenuous activity during the hottest part of the day. El calor nunca se fue del todo, pero hoy aumenta nuevamente el riesgo por calor. | Una Advertencia de Calor está vigente de 10 AM a 5 PM AST para Puerto Rico, incluyendo Culebra y Vieques, y para St. Thomas, St. John y St. Croix. La mayoría de las personas sensibles al calor pueden verse afectadas; manténgase hidratado, tome descansos frecuentes y limite la actividad física intensa durante las horas de más calor.
Seven-day Weather Risk Overview
The graphic shows the daily risk summary for 7 days. Daily risk is based on highest risk factor for that day.
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