Condensation On Inside Of Windshield? How To Avoid It?

Condensation on inside of windshield can appear in most vehicles. It may result in a dangerous or difficult driving situation if you don’t keep an eye on it.

Whether you’re living in a tropical or cold region, condensation can happen at some positions in your vehicle.

Driving needs a clear vision, so this article will provide you with everything you must learn about condensation and how to keep it at bay.

What Causes Condensation On Inside Of Windshield?

Condensation On Inside Of Windshield

Why is there condensation on the inside of my windshield? Condensation occurs when the temperature inside the vehicle differs from the temperature outside the vehicle.

This phenomenon usually happens at night or when it’s raining and the outside temperature is low.

Apart from causing water inside windshield, this also creates disturbing car window fogging that blocks your view.

Once the cold outside air and the warm temperature inside the vehicle touch the panes of glass, the water vapor in the air inside the car will change into actual droplets again when in contact with the cold windshield.

Besides, condensation inside windshield can appear due to the driver’s and passengers’ breathing.

How To Eliminate Condensation On Inside Of Windshield?

Use AC And Air Blower

Use AC and Air Blower

Whenever you crank up your vehicle in the morning, all you have to do is to activate the fan and air conditioner.

Adjust the right temperature to a low level at first, and gradually increase the temp when the condensation windshield inside disappears.

Also, you may turn the front, rear window, window defroster, and car defroster on if your vehicle is equipped with one.

This way will help remove condensation inside car windshield. Click here if the car defroster is not working.

Clean The Windshield

Clean the Windshield

Condensation may turn into a gooey mess and adhere to the dirt particles on the window’s glass.

Simply wipe the inside and outside of the windshield using a quality automotive cleaner and a microfibre cloth.

This removes dirt from the glass and reduces the chances of moisture inside windshield sticking to the window.

Use Moisture Absorber

Use Moisture Absorber

Moisture is the main cause of condensation inside car windows.

Moisture absorbers can work wonders for eliminating this excess moisture from the atmosphere.

You can purchase automotive moisture absorbers or car dehumidifiers at most supermarkets.

If you don’t want to buy a moisture absorber, another way is to open the windows for them to become dry.

This will provide similar advantages and support in treating condensation issues.

How Can You Avoid Condensation On The Inside Of Windshield?

How to stop condensation on inside windshield? Below are useful tips to help you get rid of this problem and give you a clear driving vision.

Avoid Leaving Wet Items In Your Car

Condensation occurs due to moisture coming from the air. If your vehicle is packed with raincoats, wet towels, or umbrellas, it can fog up.

You should never put these items in your vehicle to reduce the chance of condensation forms and deal with musty and damp odors.

If your vehicle seat or carpet gets wet, dry it quickly. To do this, activate the automotive heater and open the windows.

The heat dries out the fabric’s moisture, and the open windows allow water vapor to escape.

Coffee cups and empty plastic bottles may also make the problem more serious.

On hot days, the remaining liquid in the container evaporates and hits the cool window air, producing moisture. Remember to take them out after each trip.

Leave Your Windows Open On Warm Days

If you want to eliminate condensation in your vehicle, you should leave your windows open on warm days.

The warm weather with the proper temperature will help remove the built-up water vapor inside your car’s windows or windshield.

Besides, opening your windows on warm days is great for refreshing the atmosphere inside your car.

Close the Windows On Wet Days

If you want to stop condensation in the windshield, it’s ideal to close the windows on wet days. Also, don’t overload the cabin with hot air that is inherently ‘wet’.

Closing the windows can prevent the moisture outside from penetrating inside your car. This will reduce the formation of condensation that can break your vision.

Instead, let the heater cool and gradually raise the temperature for the air to get dry.

The idea is to balance the humidity and temperature so that the cabin does not freeze again.

Direct the warm air toward the windshield. The warm air dries the glass, heats it, and prevents the water vaporization from condensing further.

Turn Off The Recirculation Valve

You can see the “C”, a symbol with an arrow shape button on your vehicle.

You shouldn’t use the recirculation valve button to lessen serious condensation inside car window problems.

This feature circulates the airflow in the vehicle instead of introducing fresh air that circulates without removing the moisture.


How Much Window Condensation Is Considered Normal?

According to the EPA (Environmental Protection Agency), the normal humidity or condensation is under 60%.

Ideally, it can be between 30% and 50%. The range’s lower (or slightly lower) end is typical during the winter.

Can Moisture Break Down My Windows?

If you don’t address the humidity problem in your car, it can cause problems later. At least the humidity will lead to a musty smell.

In difficult situations, water will drip from the window onto the frame, causing damage, blisters, warping, cracks, and peeling paint.

Can Brand-New Windshields Have Condensation?

Yes, they can. Condensation usually occurs when it’s wetter and cooler outside than inside your vehicle, regardless of new or old glass.

Is Window Condensation Normal In Winter?

Condensation on the window outside is a normal process due to high humidity.

This becomes more popular in summer because of the higher humidity, but it may also happen in winter.

This condensation can take place in winter when there is a significant difference in temperature between indoors and outdoors.

Inside window condensation originates from the excessive humidity in the vehicle from inadequate ventilation.


The above is everything you should know about condensation on inside of windshield. Various causes lead to this problem.

Following the detailed steps in a complete guide in this post will support you in removing the condensation inside the vehicle quickly and lessen the serious effects.

You can return to your daily morning routine after spending no more than 20 minutes eliminating windshield condensation.

Leave a Comment