5 Ways Snakes Get Into Your Home During a Heat Wave
William Taylor
Updated on February 22, 2026
When temperatures go above 90 degrees, there's nothing more enjoyable than staying inside and basking in the air conditioning. Turns out, critters and pests may feel the same way—especially snakes. "Heat waves can drastically affect the behavior of snakes, pushing them to find cooler areas for survival," explains A.H. David, a snake expert and founder of Pest Control Weekly. In these cases, your home can inadvertently provide the comfort or shelter they seek. To prevent this, keep reading to hear from David and other experts about the ways snakes get into your home during a heat wave.
RELATED: 8 Things in Your Yard That Are Attracting Snakes to Your Home.
1 Gaps and openings
You'd be surprised at how easily snakes can squeeze through cracks or openings in your home if they're looking for food or trying to cool down.
They can get into your home through gaps under doors, holes around your plumbing or electrical outlets, cracks in your walls or foundation, or any other unsealed opening, says David.
"To snake-proof your house, seal off structural weaknesses, and install door sweeps," advises Bill Swank, integrated pest management advisor at PestSource.
RELATED: 9 Cleaning Habits That Are Attracting Snakes to Your Home.
2 Doors and windows
If you leave your doors or windows open during a heat wave, you're essentially inviting snakes to come in, Mustafa Tshash, co-founder of How To Pets, tells Best Life. They may take advantage not only of the cool air but also of the opportunity to find food that could be lying around.
"Older homes with loose window frames or poorly sealed doors can provide small gaps for snakes to slither through," David adds. It's important to get these structural problems fixed not only to keep pests out but to make sure your space is safe.
RELATED: 8 Plants That Will Keep Snakes Out of Your Yard, According to Pest Experts.
3 Water sources
Everyone needs water to survive, especially during a heatwave, including snakes—and they may use it as a way into your home.
"They may be drawn to water sources inside your house, such as leaking pipes, dripping faucets, or even pet water bowls," says Tshash.
Also, don't be surprised if you see a snake in your pool. It's the perfect spot for them to cool off and stay hydrated.
RELATED: 4 Scents That Attract Snakes to Your Yard, Experts Say.
4 Ventilation systems
While going under the porch or slithering in through the basement might be where they'd cool off normally, snakes are willing to take more risks when the weather is extra hot.
"Even though snakes are cold-blooded, there are temperatures that are too hot even for these heat-loving reptiles," says Dan Bailey, president at WikiLawn Tampa Lawn Care. And once temperatures begin to rise over 95 degrees, they're more likely to sneak in.
Snakes are very good at going around unnoticed, and it's why they gravitate toward dark, cool areas. Leonard Ang, CEO of iProperty Management, notes that dryer vents and exhaust fan vents are attractive entry points. Others include air ducts, ventilation grates, and chimney flues.
The cooler air is constantly circulating within these systems and is quite attractive to snakes during a heatwave, David tells Best Life.
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5 Vegetation
Things in your yard like tall grass or overgrown vegetation can act as shelter for snakes when it's hot outside. From there, they can usually manipulate a way inside by using them as a starting point.
"Snakes are excellent climbers, and overgrown vegetation or tree branches that come close to your home can serve as pathways for them to access higher entry points like windows or vents," explains Tshash.
Maintaining your yard and trimming any extra debris can help minimize the likelihood of snakes crossing the boundary into your home.
Courtney Shapiro Courtney Shapiro is an Associate Editor at Best Life. Before joining the Best Life team, she had editorial internships with BizBash and Anton Media Group.Read moreFiled UnderHome • Pests • SummerRead This Next9 Things Attracting Snakes to Your Basement
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