---
title: "Charleston Prepares for Extreme Heat: Understanding Safety Guidance"
url: https://www.herecharleston.com/2026/08/12/charleston-prepares-extreme-heat-2/
date: 2026-08-12T09:41:36+00:00
modified: 2026-08-12T09:41:36+00:00
author: "Oswaldo Palma"
categories: ["National"]
site: "HERE Charleston"
attribution: "HERE Charleston"
---

# Charleston Prepares for Extreme Heat: Understanding Safety Guidance

*Source: [HERE Charleston](https://www.herecharleston.com/2026/08/12/charleston-prepares-extreme-heat-2/) — August 12, 2026 by Oswaldo Palma*

As extreme heat events grow more frequent, severe, and prolonged, public health officials are underscoring the importance of understanding and implementing safety measures. An extreme heat event is defined as a series of days significantly hotter than the average for a particular time and place, a phenomenon that climate change models indicate will continue to intensify. These events are recognized as the deadliest of all weather-related hazards, making proactive preparation and informed response critical for public safety in Charleston and beyond.

Effective preparation for extreme heat begins with ensuring adequate hydration and emergency supplies. Individuals should aim to consume approximately three-quarters of a gallon of water daily under normal circumstances, increasing intake when engaging in physical activity or spending time outdoors. It is crucial to avoid sugary, caffeinated, and alcoholic beverages, which can contribute to dehydration. For those experiencing heavy sweating, combining water with snacks or a sports drink can help replenish electrolytes. Individuals with pre-existing medical conditions or those taking specific medications are advised to consult a healthcare professional to tailor their hydration strategy.

Emergency preparedness kits are a cornerstone of heat safety. A ‘Go-Kit’ should be assembled with at least three days’ worth of portable supplies, while a ‘Stay-at-Home Kit’ should contain at least two weeks’ worth of provisions. Essential items for both kits include a minimum of one gallon of drinking water per person per day, non-perishable food, and a one-month supply of necessary medications and medical supplies. Beyond sustenance and medicine, kits should also include sunscreen, wide-brimmed hats for sun protection, backup batteries and chargers for electronic devices, and important personal records.

During periods of extreme heat, minimizing exposure and seeking cool environments are paramount. Spending as much time as possible in air-conditioned spaces is highly recommended. When home air conditioning is unavailable or insufficient, predetermined cool locations such as public libraries, shopping malls, or designated cooling centers can provide critical relief. Wearing lightweight, loose-fitting clothing helps the body regulate temperature more effectively. Taking cool showers or baths can also offer temporary respite from the heat. Limiting outdoor activity, especially during the hottest parts of the day, is advised. For those whose work or responsibilities necessitate outdoor tasks, scheduling these activities for the early morning or late evening hours can significantly reduce heat exposure.

Certain populations face a heightened risk of heat-related illness. This includes older adults, infants, young children, and pregnant women, whose bodies may be less efficient at regulating temperature. Individuals with chronic medical conditions, such as heart disease, diabetes, or respiratory issues, are also particularly vulnerable. Outdoor workers, who are frequently exposed to direct sunlight and high temperatures, face an elevated risk. Furthermore, people with limited personal resources or those living in areas lacking green spaces, which can exacerbate urban heat island effects, are disproportionately affected.

Recognizing the symptoms of heat illness and knowing how to respond is vital. Heat cramps, often the first sign of heat-related distress, manifest as heavy sweating accompanied by muscle pain or spasms. If experiencing heat cramps, individuals should move to a cool place and drink water or a sports drink. Immediate medical attention is necessary if cramps persist for more than an hour or if the affected person has a heart condition.

Heat exhaustion represents a more severe stage of heat illness. Symptoms include heavy sweating, cold, pale, and clammy skin, a fast and weak pulse, nausea or vomiting, cramps, weakness, dizziness, headache, or even passing out. If these symptoms occur, the individual should be moved to a cool location, loosened clothing, and given sips of water. If symptoms worsen or last longer than an hour, or if the person begins to vomit, medical help should be sought immediately.

The most critical and life-threatening form of heat illness is heat stroke. This condition is characterized by a body temperature of 104°F or higher, hot red skin (which may be dry or moist), a fast and strong pulse, confusion, slurred speech, or loss of consciousness. Heat stroke is a medical emergency requiring immediate action. Call 911 without delay. While waiting for emergency services, begin cooling the person by any means available, such as immersing them in cool water, applying cold compresses, or fanning them. Crucially, do not give a person experiencing heat stroke anything to drink.

### Why it matters in Charleston

Charleston’s summer climate, characterized by high temperatures and significant humidity, makes adherence to extreme heat safety guidance particularly relevant for residents and visitors. The guidance directly impacts the well-being of outdoor workers at major employers like Joint Base Charleston and The Boeing Company (Boeing South Carolina), as well as those working for Charleston County Government, who are often exposed to the elements. Students and staff at institutions such as the College of Charleston and the Medical University of South Carolina (MUSC) also benefit from understanding these protocols, especially during campus activities. Furthermore, the advice on seeking cool spaces and limiting outdoor activity is pertinent for families utilizing popular local parks such as Hampton Park or Waterfront Park, ensuring their safety during the hottest months. This comprehensive guidance provides a framework for the entire Charleston community to mitigate the risks associated with increasingly common extreme heat events.