Heat waves hit kids harder than adults. Their bodies heat up faster, they sweat less efficiently, and young children cannot always tell you when something feels wrong. This summer has already brought dangerous heat to large parts of the country, including the Northeast, with heat advisories affecting millions of families. Here is what parents need to know to keep kids safe, comfortable, and cool at home.
Why Kids Overheat Faster Than Adults
Children have a higher surface area to body weight ratio than adults, so they absorb heat from the environment faster. Babies and toddlers also sweat less, which means their bodies are not as good at cooling themselves down. Add in the fact that a young child cannot always say “I’m too hot,” and you have a group that needs extra attention when the temperature climbs.
This is just as true indoors as outdoors. A stuffy bedroom at night can be just as risky as an afternoon outside, especially once a child is asleep and cannot move themselves to a cooler spot.
What Temperature Should a Child’s Room Be?
There is no single perfect number, but many pediatricians recommend keeping a baby or young child’s room somewhere between 68 and 72 degrees Fahrenheit for sleep. Warmer than that, and the risk of a baby overheating during sleep goes up. Older kids can handle a bit more range, but the same general idea applies: cooler is safer, and a hot, stuffy room is worth fixing.
During a heat wave, getting all the way down to 72 degrees is not always realistic, especially in an older home or one with a struggling air conditioner. The goal is simply to get as close to that range as you can and to watch your child closely if the room runs warmer.
Signs Your Child Is Overheating
Know these signs so you can catch a problem early, before it becomes serious.
Signs of mild overheating or heat exhaustion:
- Flushed, red skin
- Heavy sweating
- Fussiness or unusual crying
- Skin that feels warm to the touch, especially on the back of the neck or chest
- Fewer wet diapers than usual
- Tiredness or low energy
Signs that need immediate medical attention:
- Hot, dry skin with little or no sweating
- Confusion or unusual behavior
- A very high body temperature
- Vomiting
- Trouble waking up or being unresponsive
If you see anything from that second list, call your pediatrician or 911 right away. Heat stroke is a medical emergency and it can move fast in a young child.
How to Cool a Room Down Fast
You do not need a whole new cooling system to make a real difference. Try these first.
- Close blinds and curtains during the day, especially on windows that get direct sun. This alone can keep a room several degrees cooler.
- Use a fan the right way. A fan does not cool the air, it moves it. Point it so air flows across your child, not just around the room.
- Cross ventilate at night once it cools outside. Open windows on opposite sides of the home to pull cooler air through.
- Dress for the heat. Light, breathable pajamas and a single light sheet beat heavy blankets, even ones marketed as cooling.
- Move to the coolest room in the house for sleep if one bedroom consistently runs hotter than the rest.
- Keep them hydrated. Offer water, breast milk, or formula more often during hot stretches. Kids can get dehydrated before they even feel thirsty.
- Skip the hot bath before bed. A lukewarm bath can actually help bring body temperature down before sleep.
When the Problem Is Your AC, Not the Room
Sometimes you do everything right and the room still will not cool down. That usually means the air conditioner itself is struggling, not the room.
The team at AmeriHeat, a heating and cooling company based in Rochester, New York, was asked what they see most during heat waves like this one. Their answer was simple. Check your air filter first. A clogged filter is one of the most common reasons an air conditioner runs constantly but still cannot keep up, and it is something most homeowners can check themselves in under five minutes.
If the filter is clean and the system is still struggling, especially if you notice weak airflow, warm air coming from the vents, or the unit running nonstop without ever catching up, the system may be undersized, low on refrigerant, or simply getting old. That is not something to wait out. During a heat wave, getting it repaired before it fails completely is a lot easier on your family than dealing with a full breakdown in the middle of a 100 degree week.
A Quick Heat Wave Checklist for Parents
- Keep the child’s room between 68 and 72 degrees when possible
- Close blinds and curtains during the day
- Dress kids in light, breathable clothing for sleep
- Offer extra fluids throughout the day
- Watch for flushed skin, fussiness, or low energy
- Call a doctor right away for confusion, no sweating, or a very high temperature
- Check your air filter if the AC seems to be struggling
- Have a backup plan for where to go if your AC fails during extreme heat, like a cool room in the basement, a relative’s house, or a public cooling center
The Bottom Line
Extreme heat is hard on everyone, but young kids cannot always tell you when something is wrong, so it is on the adults around them to watch closely. Keep rooms cool, keep kids hydrated, know the warning signs, and do not wait to get help, whether that means calling a doctor for your child or calling someone to look at an air conditioner that cannot keep up. A little preparation now makes the next heat wave a lot less stressful.


