Can you get sunburned through a car window in the desert?

Reflection and Refraction

When sunlight hits a car window, it can reflect up to 90% of the sun’s rays. In the desert, where the sun’s rays are strongest, this reflection can cause significant damage to skin, even through the glass. To put this into perspective, the sun’s rays can penetrate glass, causing a UV-A index of up to 80% of the sun’s direct exposure.

Window Types and Protection

The type of glass used in a car’s windshield and windows can affect the level of protection it provides. Laminated glass, which is made by sandwiching a layer of plastic between two sheets of glass, can block up to 99.9% of UV-A rays. However, this type of glass is not commonly used in side windows or rear windshields. If you’re driving in the desert, consider upgrading to a vehicle with laminated glass or applying a window film that blocks UV-A rays.

Sun Protection Techniques

While a car’s window may not provide complete protection, there are steps you can take to minimize the risk of sunburn. Wear a hat with a wide brim, apply sunscreen with at least SPF 30, and wear protective clothing. If you’re going to be driving for an extended period, consider taking breaks in shaded areas or using a sunshade to block direct sunlight. Additionally, keep an eye on the time of day, as the sun’s rays are strongest between 10am and 4pm.