What to Do When Side Windows Are Blurred in Rainy Weather?

[AliyahMarie]

Methods to deal with blurred side windows in rainy weather include: 1. Turn on the window defogging mode; 2. Open the windows for convection to balance the temperature inside and outside the car; 3. Spray defogger on the glass; 4. Turn on the car's heating or cooling air to blow on the glass; 5. Apply soap evenly on the car windows. Precautions for driving in rainy weather include: 1. Slow down and maintain a safe distance from vehicles in front and behind; 2. Turn on the wipers to maintain good visibility; 3. Turn on the air conditioner to blow towards the windshield to reduce fogging; 4. Drive at low speed in waterlogged areas and detour if the water level exceeds the exhaust pipe; 5. Slow down at turns and avoid sudden braking; 6. Pay attention to the movements of non-motorized vehicles and pedestrians, and maintain a safe speed.

[DawsonLynn]

I've encountered this situation too many times, the side windows fogging up on rainy days is really frustrating. I usually turn on the air conditioning defogger immediately and direct the vents towards the side windows. Remember to set the temperature a bit higher, as warm air works best for defogging. If the fog is particularly heavy, I dip a paper towel in some dish soap and wipe it on the inside of the glass—this trick is super cheap and effective. During regular maintenance, I also use glass coating agents on the windows, which makes rainwater slide right off without pooling. The rearview mirror heating function should always be on, otherwise changing lanes can be especially dangerous. Driving in the rain requires going slower than usual because visibility is reduced and reaction times are shorter—safety is the top priority.

[Liam]

After driving for ten years, I've found three main solutions to visibility issues in rainy weather. First, keep the car interior dry and avoid placing wet clothes directly on the seats. Opening windows slightly for ventilation helps quickly balance indoor-outdoor temperature differences, though this isn't practical during heavy rain. Professional anti-fog sprays are the most worry-free solution - one application lasts about half a month, and they cost just over ten yuan at supermarkets. Another trick is setting the air conditioning temperature about 5 degrees higher than outside, which prevents sudden fogging. Most importantly, maintain greater following distance in rain, and be extra cautious when changing lanes with foggy side windows - activating turn signals about 200 meters in advance is safest.

[Tanner]

Don't panic in this situation, I have a few simple solutions. First, turn on the air conditioning's external circulation mode and set the fan to maximum speed, directing it towards the windows. Keeping a dry towel in the car is very practical—use it to wipe the side windows at red lights. Nowadays, there's a good waterproof film available; after applying it, rainwater hardly sticks to the glass. If you park outdoors long-term, remember to regularly clean the wipers and drainage channels, as blockages can easily lead to water accumulation and fogging. Be extra cautious when driving in rain at night—blurred windows under dim streetlights are particularly hazardous. Following these measures should generally suffice.

[Eloise]

Side window fogging is essentially caused by temperature differences. I find that turning on the air conditioning to quickly adjust the interior temperature is the most effective method—both cold and warm air work, but avoid blowing directly at the face. Nowadays, there are glass cleaners with anti-fog coatings; applying them once a week can reduce water vapor adhesion. During rainy weather, try to minimize the temperature difference between the inside and outside of the car—for example, avoid turning on very hot heating immediately after getting in. Remember to keep the rearview mirror heating function on regularly, as it ensures clear visibility of vehicles behind when changing lanes. Once during heavy rain, I forgot to turn it on and nearly sideswiped a truck next to me—this incident made me pay extra attention to this feature afterward. It’s also important to frequently glance at both side mirrors while driving.