How to Remove Fog from the Car on Rainy Days?

[Shelly]

Methods to remove fog from the car on rainy days: 1. For manual air conditioning, turn on the front window defogging mode, increase the fan speed, turn on the AC switch, and lower the temperature. The fog on the glass will disappear shortly; 2. If the rear window and side mirrors are equipped with electric heating functions, simply press the switch to activate them, and the fog will be cleared in about a minute; 3. For automatic air conditioning, press the one-touch defrost button, and the fan speed will automatically increase while the external circulation is activated; 4. Do not turn on the air conditioning immediately after starting the car. Wait for the engine to warm up for a few minutes, and once the water temperature rises, begin heating. Turn on the front window defogging mode, and the fog will disappear in a few minutes.

[EllieRose]

I remember one time when I was driving in the rain, the car windows suddenly fogged up and I couldn't see anything. I quickly turned on the air conditioning to cold air mode, set the airflow to the windshield, and then turned on the external circulation to let fresh air in. The fog cleared up very quickly. It's also important to keep the interior from getting too humid, so I make sure to dry my shoes before getting in the car. Driving in the rain is slippery and visibility is poor, which can be dangerous, so I drive slowly and avoid sudden braking. The key to defogging is to reduce the humidity inside the car. The air conditioning is very effective at absorbing moisture, and you can also use a cheap defogging spray on the glass, but the air conditioning is the most convenient and quickest solution.

[StElliana]

Driving with foggy windows on rainy days is really annoying, especially when the humidity is high and the fog forms quickly. As someone who drives a lot, I know that fog is caused by temperature differences. Turning on the cold air conditioning for dehumidification works the fastest—pressing the defog button usually solves the problem in seconds. If the AC isn’t working well, cracking the window slightly to allow airflow can also help, even if a bit of rain gets in. Safety comes first—don’t wipe the fog with your hands when it’s heavy, as it distracts you and can lead to accidents. Regularly check your car’s AC system to ensure it functions properly, preventing issues before they arise.

[MacDonovan]

I often take my kids out, and their safety is my biggest concern when driving in foggy conditions on rainy days. Simply using the air conditioning to defog is sufficient; setting the temperature to around 20 degrees and directing the airflow towards the windows is the most reliable method. If fogging occurs before starting the car, turning on the fan for a few cycles can help prevent it. With poor visibility on rainy days, quick defogging is essential, so keeping a defogging spray handy is highly practical. Remember to drive slowly, as wet roads are slippery, and keep the windows clean for clear visibility.

[LeAlina]

Back when I drove an old car, I used to blast hot air at the windshield for a long time during rainy foggy days - slow but effective. Now I've developed the habit of first turning on recirculation mode before switching to fresh air to promote airflow. Wiping door droplets dry before entering the car on rainy days also helps reduce humidity significantly. Stay focused for safe driving - pull over if fog gets too heavy. Traditional solutions like anti-fog films or sprays remain cost-effective and reliable.