How to Defog Your Car on Rainy Days?

[DeWilliam]

Here are the methods to defog your car on rainy days: 1. For manual air conditioning, turn on the front window defogging mode, set the fan speed to maximum, switch on the A/C, and adjust the temperature to the lowest setting. The fog should clear in about a minute. 2. Some car models are equipped with rear window electric heating and side mirror electric heating functions. Simply press the switch, and the fog should clear in approximately one minute. 3. For automatic air conditioning, usually you just need to press the one-touch defrost button. Once pressed, the fan speed will automatically adjust to maximum, and the external air circulation will activate. 4. Use the heating system to defog. If the car has just been started, wait a few minutes for the engine to warm up and the water temperature to rise before turning on the heating. Set the fan speed to maximum and activate the front window defogging mode. The fog should clear in a few minutes. This method also works for fogging on the outside of the glass in summer.

[OLeilani]

Driving in rainy weather with fogged-up windows can be quite troublesome, and I used to encounter this issue often. I prefer using the defogging mode of the air conditioning—just press the button, and the AC automatically increases the fan speed, directing airflow toward the windshield. The cold air helps absorb moisture, quickly clearing the fog. It’s essential to turn on the external air circulation to let dry air from outside enter the car, reducing humidity inside and minimizing fogging. My car also has a heating function, which is especially useful during winter rain or when going downhill when fogging worsens—turning on the AC with heat immediately clears it up. I usually keep a clean cloth or anti-fog spray in the glove compartment as a backup. If fog suddenly appears while driving, a quick wipe helps, but never wipe while driving—it’s dangerous! Over time, the AC filter can get dirty, so remember to check and replace it monthly to maintain high defogging efficiency. In short, stay calm when defogging, and control your speed gradually for safety.

[StJudah]

As a young enthusiast who loves tinkering with automotive technology, I find defogging quite simple. Most new cars come with intelligent defogging systems – just press the button on the center console, and the AC automatically switches to optimal airflow and temperature, directing it precisely at the windshield. I prefer using my smartphone app to preset the defogging mode, activating it before leaving home so the view is crystal clear when I get in the car. During rainy days, using recirculation mode increases humidity, so I manually switch to fresh air intake to dry the cabin. My car even supports voice control – just say 'defog' and it handles the rest, which feels incredibly futuristic! To prevent fogging, regularly cleaning AC ducts or applying anti-fog coatings helps, but don't rely too much on those sprays – if they fail, it could cause trouble. Most importantly, avoid sudden braking in heavy rain to prevent fog from reappearing and compromising driving safety.

[VanMartin]

We veteran drivers are accustomed to using traditional methods to defog. On rainy days when fogging gets heavy, we crack open the windows slightly for ventilation - allowing air exchange between inside and outside the car reduces humidity quickly. Though some rain may drift in, it clears the fog rapidly. Always keep a soft microfiber cloth in the car; when fog appears, pull over, turn off the engine and gently wipe the windows before resuming your journey - simple and safe. Modern vehicles come with dedicated defogger buttons that work impressively well, clearing the windshield in seconds - no need to overthink it. Just remember to avoid overusing recirculation mode as it increases humidity. During rainy conditions when temperatures are higher (making fogging more likely), setting the AC to around 24°C strikes the ideal balance. For safety, drive slower when visibility is low and only accelerate after the fog has completely cleared.