San Juan Municipality, PR
Alerts
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Alerts are listed in order of start time and level of severity. Click on the alert title to read details for each alert.
In effect from Wednesday 11/04 10:00 AM AST – Wednesday 11/04 5:00 PM AST
Issued by NWS San Juan PR
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
From 10 AM this morning to 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.
Areas Impacted
- 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
- St Croix
Tips to Stay Safe
A Heat Advisory means dangerous heat conditions are happening now or soon. Take action before, during and after the heat to stay safe.
- Stay in air-conditioned spaces if possible. Find cooling centers or places with AC in your community that you can go to, like libraries or shopping malls.
- Stay hydrated and stock up on clean drinking water to get you through multiple days of heat.
- Reschedule outdoor activities for cooler times of the day, and take breaks in the shade or air conditioning.
- Cover windows with curtains or shades, or use window reflectors designed to reflect heat back outside.
- Check on friends, family, and neighbors, especially those who do not have air conditioning or spend much of their time alone.
Make sure you know the signs of heat-related illness and how to respond.
Briefings
From the Forecaster
Today | Hoy
Created by the NWS San Juan WFO
☀️🌧️ Hot start, rainy afternoon! Heat Advisory from 10 AM–4 PM for PR & USVI. Afternoon showers and thunderstorms expected across interior and northern PR. Stay safe! ☀️🌧️ ¡Calor en la mañana y aguaceros en la tarde! Advertencia de Calor de 10 AM–4 PM para PR e Islas Vírgenes. Aguaceros y tronadas en el interior y norte de PR. ¡Precaución! #PRwx #USVIwx
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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