How to Stop Windshield from Fogging Up in Rain

foggy windshield rain

Driving in the rain can be tricky, especially when your windshield starts to fog up. A foggy windshield can be dangerous, and nobody wants to get into an accident because they couldn’t see where they were going. 

Luckily, there are a few things you can do to prevent your windshield from fogging up in the rain.

In this article, we’ll discuss some solutions and tips to prevent your car from fogging up in the rain.

Let’s get started.

Understanding the Causes of Windshield Fogging Up in the Rain

There are a few reasons why windshields fog up in the rain. When it’s raining outside, the air inside your car gets warmer than the outside air. This temperature difference causes moisture in the air to condense on your windshield, creating fog

Other factors that can contribute to windshield fogging up in the rain include humidity levels, rainwater on the windshield, and other environmental factors.

Solutions to Prevent Windshields from Fogging Up in Rain

There are several things you can do to prevent your windshield from fogging up in the rain. Here are some solutions:

  1. Turn on the Defrost Setting: When you turn on the defrost setting in your car, it helps circulate the air and prevent moisture from building up on your windshield. This is a quick and easy solution that works well.
  2. Use the Air Conditioner: Turning on the air conditioner can help reduce the humidity levels inside your car, which can prevent your windshield from fogging up.
  3. Crack a Window Open: If you crack a window open, it can help reduce the temperature difference between the inside and outside of your car. This can prevent moisture from condensing on your windshield.
  4. Use Rain Repellent Products: Rain-repellent products, like Rain-X, can help prevent rainwater from sticking to your windshield. This can also help prevent your windshield from fogging up.
  5. Apply Shaving Cream or Potato to the Windshield: Applying a small amount of shaving cream or potato to your windshield and wiping it off can leave a thin layer that can help prevent fog from building up. It might seem like a strange thing to do but they work.
  6. Use a Microfiber Cloth: A microfiber cloth can be used to wipe the windshield and remove any moisture that has built up. Keep one handy in the car.

Tips to Maintain a Clear Windshield in Rainy Conditions

There are also some tips you can follow to maintain a clear windshield in rainy conditions:

  1. Keep the Inside of the Car Dry: If you keep the inside of your car dry, it can help reduce the amount of moisture in the air.
  2. Remove Any Debris from the Windshield: Debris, like leaves or twigs, can hold moisture and make your windshield more likely to fog up.
  3. Keep the Windshield Wipers in Good Condition: Good quality windshield wipers can help remove rainwater and prevent fog from building up.
  4. Avoid Smoking Inside the Car: Smoking can release moisture into the air and make it more likely that your windshield will fog up.
  5. Clean the Windshield Regularly: Regularly cleaning your windshield can help remove any dirt or grime that can hold moisture.


Having a clear windshield when driving in the rain is crucial for your safety. 

There are several solutions to prevent your windshield from fogging up. You can also follow the tips to maintain a clear windshield in rainy conditions.

By following these solutions and tips, you can drive safely in the rain and avoid any accidents caused by a foggy windshield.

Looking for more windshield cleaning tips? Read How to Use Toothpaste to Clean Car Windshield.

Thanks for dropping by my blog.

-Baking Soda Guy  

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