Bed bugs are present year-round, but some seasons can make infestations grow faster or spread more easily. Understanding key bed bug facts can help you stay ahead of potential infestations. While they can be active all year, they're more of a problem in the warmer months. Higher temperatures can speed up their life cycle, making it easier for infestations to grow quickly. Plus, people tend to travel more in summer, which increases the chance of picking up bed bugs and bringing them home.
During winter, bed bugs don't disappear, but their activity may slow down slightly in cooler indoor spaces. However, central heating keeps most homes warm enough for them to survive and continue feeding. Whether it's summer or winter, if your home becomes infested, it's important to act fast. Learn more about the types of bed bug treatment we offer.
Bed bugs can live outside in the summer, but not for long. While warmer temperatures allow them to survive outdoors briefly, they’re not well adapted to life outside. Bed bugs prefer stable, indoor environments close to food sources: people.
If bed bugs are found outside, it’s often because infested items were thrown away or moved. But once exposed to outdoor elements like sun, rain, or fluctuating heat, their chances of long-term survival drop quickly.
Temperature plays a big role in how fast bed bugs grow and move. In warmer months, especially indoors, they can feed more often and reproduce faster. A full life cycle, from egg to adult, can take as little as three weeks during the summer.
Cold slows them down, but doesn’t stop them. Most properties remain warm enough in winter for bed bugs to stay active. So even if you're not seeing them as often, that doesn’t mean the infestation is gone.
Bed bugs tend to spread more in hot weather, especially due to increased human travel. Summer vacations, hotel stays, and shared spaces give bed bugs more chances to hitch a ride in bags, clothes, or luggage.
That said, they can still spread in winter, especially through used furniture, shared laundry rooms, or multi-unit buildings. Whether it’s hot or cold out, it’s smart to inspect your property regularly and look for signs of activity.
In short: not usually. While extreme cold can kill bed bugs, indoor environments rarely get cold enough to affect them. A temperature below freezing can be deadly for bed bugs, but only if it's sustained for several days. Most heated homes stay well above that. So winter doesn't protect you from a bed bug problem.
If you think you've spotted signs of an infestation, it's best to take action and explore the types of bed bug treatment available from Presto-X.
No matter the season, travel is one of the main ways people bring bed bugs home. During the summer, trips to hotels or other vacation accommodation can expose you to a higher risk. In winter, holiday travel and visits to family or friends can carry the same threat.
To help avoid bed bugs:
Whether you're dealing with a new issue or a recurring bed bug problem, our technicians can help identify and treat bed bugs at your property. Learn more about the types of bed bug treatment we offer and how we help businesses across the region.
Bed bugs are usually more active in summer because warmer temperatures can speed up their life cycle. Increased travel during the summer also makes it easier for them to spread from place to place. They do not disappear in winter, though, as heated homes give them the warmth they need to survive and keep feeding.
Bed bugs may survive outside for a short time in warm summer weather, especially if they have access to shelter and a host. However, outdoor conditions are usually too changeable for them to live there for long. They are much better suited to indoor spaces where temperatures stay stable, and people are nearby.
Very cold temperatures can kill bed bugs, but they do not usually die off during winter inside the home. Most indoor spaces stay warm enough for them to keep hiding, feeding, and reproducing. That is why bed bug infestations can continue year-round, even when it is cold outside.