How to Remove Fog from the Outside of Car Windows on Rainy Summer Days?
2 Answers
Park the car, turn on the air conditioning, adjust the temperature control knob to the warm air direction, press the defrost button, and use warm air to dry the fog on the windshield. Before each use, spray evenly on the window and wipe it clean to form a transparent protective film on the glass to prevent fog formation. You can open a small gap in the windows on both sides to allow the air inside the car to circulate, gradually bringing the interior temperature closer to the outside temperature, which will help the fog dissipate.
As a long-time driving enthusiast, I've had plenty of firsthand experience with foggy car windows during summer rainy days. Windshield fogging mainly occurs when the cold air from the car's AC meets warm, humid air, forming water droplets that dangerously obstruct visibility. My usual approach is to first run the wipers several times—they can quickly clear most of the condensation. Then, I turn on the AC in cool mode, directing the airflow toward the windows while remembering to activate recirculation mode to reduce humidity buildup. For stubborn fog, I use a commercial anti-fog spray—just wipe with a cloth for instant results, and preventive treatment can delay fog formation. Daily maintenance tips: Keep windshields clean to avoid oil buildup; replace wiper blades regularly to prevent aging-related streaking; check AC filters seasonally to ensure proper airflow. These steps make rainy-day driving safer and more hassle-free.
