How to Solve Fogging on the Outside of Car Windows in Summer?
4 Answers
Fogging on the outside of car windows occurs because the air conditioning is turned on inside the car. The temperature difference between the inside and outside of the car causes this phenomenon. You can first turn off the air conditioning inside the car, as this will equalize the temperatures inside and outside, making it less likely for fogging to occur. More information on preventing fogging on the outside of car windows is as follows: 1. Turn on the recirculation mode inside the car: This enhances air circulation, which helps dissipate the fog. 2. Use the windshield wipers on the outside glass: This helps the defroster keep the windows clear and transparent. 3. Use glass cleaner to wash the windows: This can prevent fogging. 4. Anti-fog spray: One application can keep fogging at bay for about a month, and it can be used on both the inside and outside glass. 5. Use detergent: Mix a small amount with water to clean the glass inside and out, making it less prone to fogging.
I've been driving for over thirty years and have seen my fair share of fogging on the outside of car windows in summer. It's usually caused by blasting the air conditioning too hard while driving. The inside of the glass cools down too quickly, and when the humid outside air hits it, it condenses into water droplets, causing fog—especially noticeable on rainy days. My first move is to wipe it clean with the windshield wipers, which is simple and effective. But if the fogging persists, I adjust the AC settings, switching to external circulation mode and redirecting the airflow from directly hitting the windshield to the footwell or side windows to reduce the temperature difference. I also crack the windows slightly to ventilate, balancing the inside and outside temperatures to prevent further fogging. When parking, I make sure to turn off the AC a few minutes early to avoid temperature buildup. I also keep a glass defogger spray in the car—a quick application protects the glass from fogging for weeks. Developing these habits is crucial because foggy windows can blur visibility and lead to accidents, especially when driving at night. Keeping the windows clean is also key, as dirt makes fog more likely to form. A regular wipe-down with ordinary cleaner does the trick for prevention.
Buddy, driving in summer with the AC blasting keeps you cool, but that fogging up outside is a real headache. Whenever I encounter it, I quickly turn on the wipers—a couple of swipes usually do the trick. If it keeps fogging up after wiping, I immediately adjust the AC vents away from the windshield and switch to fresh air mode to balance the temperature. Cracking the windows a bit for ventilation also helps; mixing the inside and outside air disperses the fog. Remember not to keep the car too cold inside, or the warm outside air will cause condensation. Anti-fog sprays work great too—just grab a bottle from the supermarket and spray it on the glass for an easy fix. Safety first—fog obstructing your view is seriously dangerous, especially on the highway, so act decisively. Make it a habit to minimize AC use when parked, or turn off the cooling to let the car warm up naturally and avoid temperature differences causing trouble. These simple tips are easy and effective, making your drive much more worry-free.
Last time I drove on a business trip in summer, the car windows fogged up and I panicked at first, thinking there was a malfunction. After checking, I realized it was caused by the air conditioning being set too low with the vents blowing directly on the glass. I adjusted the vents downward to avoid the windshield and used the wipers a few times—the fog cleared completely. Now I know how to handle it: before turning on the AC, make sure it's not blowing directly on the glass, use the external air circulation mode more often to bring in outside air, and maintain a moderate temperature difference. When parking, turn off the AC or open the windows a few minutes in advance to prevent fogging. Summer fogging affects driving safety and should be prioritized—using the car's defogging function is the quickest solution. Keeping a defogging cloth handy for emergency windshield wiping is also practical.
