If you’re looking to keep your car cooler during those hot summer days, you may be wondering if cracking a window will do the trick. Unfortunately, while cracked windows may help circulate air and make your car feel less stuffy, they won’t actually keep it any cooler.
Here’s why: when sunlight hits a closed car door or window, that heat is transferred into the car itself, making it warmer inside. Cracking a window open only provides a small opening for that heat to escape. So while you may get a little relief from the circulating air, your car will still continue to heat up.
The best way to keep your car cool is to park in the shade or use a sunshade on the windshield and windows. This will block out the majority of the sun’s rays and prevent them from turning your car into a sauna. If you don’t have access to shade, try covering your windows with towels or blankets – anything that will block out some of that pesky sunlight.