What to Do When the Car Windows Fog Up on Rainy Days?
4 Answers
Utilize the method of reducing temperature difference to eliminate fogging. In winter, direct warm air onto the windows using the heater to quickly raise the temperature and reduce the temperature difference on the glass surface. Apply an anti-fog agent evenly on the windows and wipe it clean, forming a transparent protective film on the glass to prevent fog formation. Crack open the side windows slightly to allow air convection inside the car, gradually equalizing the interior temperature with the outside temperature, which will help dissipate the fog. Mix dish soap with water, apply it evenly on the interior glass with a sponge, and after it dries, wipe it clean with a car towel, leaving no water stains.
Once when I was driving home, I encountered heavy rain, and the windows fogged up so much that visibility was completely obscured—it was really dangerous. I immediately turned on the air conditioning to the cold setting and aimed it at the windshield, blowing hard until the fog slowly dissipated. I also kept the wipers on to maintain clarity. If that didn’t work, I pulled over and wiped the windshield with a dry cloth to avoid pushing my luck. The most crucial thing when driving in the rain is to slow down and leave extra distance from the car ahead to prevent skidding. I also recommend regularly checking the wiper blades and windshield fluid, keeping both the interior and exterior clean to minimize fogging. When it’s rainy and foggy, don’t rush—find a safe spot to rest. Safety comes first, and prevention is better than anything else.
When I often take people for driving practice, foggy and rainy days are the most feared as fog obstructs visibility. Immediately activate the air conditioning defogging function; using cold air to blow on the glass is effective. Ensure the wipers operate properly, and speed control is crucial. Reduce speed and drive slowly when visibility is low. Check that the tire treads are deep enough to avoid losing control. Turn on hazard lights when parking. Regular vehicle maintenance, cleaning the glass and wiper system, and using anti-fog products can help prevent issues in advance, ensuring driving safety. Always pay attention to weather and road conditions to respond to risks promptly.
On foggy rainy days, I just press the defrost button, turn the AC to high with cold air blowing at the windshield for a few minutes to clear it. Then I casually wipe it with a cloth for better visibility. Opening the windows slightly helps reduce fog. Drive slower and don't rush. Regularly check your wipers for effectiveness. Simple treatments ensure safety.
