9 tips to prevent heat exhaustion in schools

When the temperature rises, so does the risk of heat exhaustion—especially in school environments where students and staff may be outside for recess, sports, bus duty, or field trips. While a hot day might seem harmless, heat-related illness can develop quickly and become serious without the right precautions.

Here’s what school staff and administrators need to know about spotting the signs and symptoms of heat exhaustion—and most importantly, how to prevent it.

1. Know the signs of heat exhaustion

Recognizing the signs of heat exhaustion early is the key to stopping it from becoming something more dangerous, like heat stroke. Watch for:

• Heavy sweating
• Pale or clammy skin
• Weakness or dizziness
• Nausea or vomiting
• Headache
• Muscle cramps
• Fast, weak pulse
• Fainting or confusion

These symptoms of heat exhaustion can come on suddenly—especially during physical activity or in high heat
and humidity.

2. Understand heat stroke vs. heat exhaustion

It’s important to know the difference between heat stroke vs. heat exhaustion because treatment steps are different.

• Heat exhaustion is serious but can usually be treated with rest and cooling
• Heat stroke is a medical emergency and can be life-threatening—it involves a body temperature above 103°F, dry or hot skin, and confusion or unconsciousness

If you’re ever in doubt, call 911.

3. Hydration is your first line of defense

Encourage students and staff to drink water throughout the day—not just when they feel thirsty. Heat exhaustion is often caused by dehydration. Make water accessible, especially during recess, gym class, and after-school sports.

4. Dress for the weather

Lightweight, light-colored, breathable clothing helps the body stay cool. Encourage students to wear hats and sunglasses outdoors and remind staff to dress for heat if they’re supervising outside.

5. Time outdoor activities strategically

Avoid scheduling physical activity during the hottest parts of the day (typically 10 a.m. – 4 p.m.). Opt for early mornings when possible and always provide shaded rest breaks.

6. Create cooling stations

For events like field days or sports practices set up shade areas or indoor cooling stations where students and staff can take a break, drink water, and cool down.

7. Watch vulnerable groups closely

Young children, students with health conditions, and staff who work outside—like crossing guards or maintenance crews—are more susceptible to heat-related illness. Keep an eye on them during hot weather and check in often.

8. Know how long heat exhaustion lasts

How long does heat exhaustion last? With proper rest and cooling, symptoms often improve within 30 minutes to an hour. However, it may take a full day to feel completely back to normal. Always err on the side of caution and allow extra recovery time before returning to strenuous activity.

9. Act fast with heat exhaustion treatment

If someone shows heat exhaustion symptoms:

• Move them to a cool, shaded place or indoors
• Have them lie down and loosen any tight clothing
• Give small sips of cool water
• Use cool cloths or fans to lower body temperature

If symptoms worsen or don’t improve within an hour, seek medical attention immediately.

Why it matters

According to the CDC, more than 9,000 people are hospitalized for heat-related illness each year in the U.S.—and many of those cases are preventable. With schools full of active students and hardworking staff, staying heat-aware isn’t just smart—it’s essential.

At EMC Insurance, we’re committed to helping schools build safer, healthier environments. By staying alert to the risks of heat exhaustion and taking a few proactive steps, school staff can help keep students and colleagues safe—even on the hottest days.