The answer to 'bed bug season' is that bed bugs can be a year-round problem, but they are typically more active and problematic during the warmer months. Bed bugs thrive in warm, humid environments and their populations tend to increase in the spring and summer when people spend more time outdoors and travel more.
Bed bug infestations can happen at any time, but they are more common during the summer because bed bugs are more active and multiply faster in warmer weather. They are also more likely to be brought into the home through travel, new furniture, or other means during this time of year.