Phoenix Extreme Heat Is Back: What 115°+ Temperatures Mean for Your Car

Phoenix drivers know summer is hot. But there is a difference between an ordinary hot August day and the prolonged extreme heat the Valley is experiencing right now.

The National Weather Service has issued an Extreme Heat Warning for the Phoenix metropolitan area through Saturday, with temperatures forecast to climb as high as 116°F. The warning includes Central Phoenix, Scottsdale and Paradise Valley, Glendale, the East Valley, Ahwatukee, Queen Creek, Buckeye, Avondale and other communities across Greater Phoenix.

And this isn’t the first stretch of exceptional heat Phoenix has seen this month.

Official National Weather Service climate data from Phoenix Sky Harbor International Airport recorded highs of 116°F on August 1, 115°F on August 2 and 116°F again on August 3. The average temperature on each of those days was 105°F — about 10 degrees above normal.

For Phoenix drivers, those numbers matter for more than what the thermometer says outside. When a vehicle sits in the Arizona sun, solar energy enters through the glass and heats the seats, dashboard, steering wheel and other surfaces inside the cabin. Those surfaces then radiate heat into the vehicle.

That is one reason getting into a car that’s been sitting outside can feel dramatically hotter than the air around it.

Phoenix’s August Heat Isn’t Letting Up

August is always hot in Phoenix, but 2026 has repeatedly pushed beyond what is normal even by Valley standards.

On August 18, for example, Phoenix reached 113°F, eight degrees above the normal high of 105°F for that date. The overnight low was 92°F — also eight degrees above normal. Earlier in the month, temperatures reached 115°F or 116°F on three consecutive days.

Now another prolonged period of extreme heat has arrived.

The National Weather Service’s Phoenix office is forecasting another run of temperatures well above 110°F, including a forecast high of 116°F on Wednesday. The agency is warning of Major to Extreme HeatRisk across the region.

Drivers can follow the latest temperatures, warnings and heat information directly from the National Weather Service Phoenix Heat Page.

For anyone who spends time driving around Phoenix, Scottsdale, Tempe, Mesa, Chandler, Gilbert or the surrounding Valley, the practical question becomes: What can you do to make your vehicle more comfortable in this kind of heat?

One answer is reducing the amount of solar energy entering the vehicle in the first place.

Why Window Tint Matters in Extreme Arizona Heat

Automotive window tint isn’t simply about making a vehicle look better or making the windows darker.

Modern automotive window films can be engineered to reduce the amount of solar energy transmitted through automotive glass. Higher-performance films can reject significant amounts of infrared energy while also blocking ultraviolet radiation.

That distinction is particularly important in Arizona.

The darkness of a window film and its heat-rejection performance are not necessarily the same thing. A very dark, inexpensive film isn’t automatically the film that provides the best heat rejection. Conversely, advanced ceramic films can provide substantial solar performance without requiring extremely dark glass.

For Phoenix drivers who are primarily concerned about heat, the quality and technology of the film matter just as much as how dark the tint looks.

At Clear View Glass & Tint, our Phoenix automotive window tinting services include ceramic and other high-performance film options designed for Arizona driving conditions.

Ceramic Window Tint and the Phoenix Sun

Ceramic automotive tint has become especially popular in hot climates because it is designed to provide strong solar performance without relying solely on a dark appearance.

That’s useful in Phoenix because drivers often want several things at once:

• Less solar heat entering the vehicle
• UV protection
• Reduced glare
• Greater comfort while driving
• Protection for interior surfaces
• A clean appearance
• Tint that complies with Arizona law

A quality ceramic film can address those priorities without requiring you to turn every window into extremely dark glass.

That’s also why choosing tint based exclusively on price or shade percentage can be a mistake. Two films that look similar can perform very differently when exposed to intense Arizona sunlight.

When temperatures outside are pushing 110°F, 115°F or higher, film performance becomes much more noticeable than it might be in a cooler climate.

Window Tint Won’t Make a Parked Car Cool — But That’s Not the Point

There is an important distinction worth making.

No automotive window tint can keep a closed vehicle sitting in the Phoenix sun “cool.” When it’s 115°F outside and a vehicle sits in direct sunlight for hours, the interior is still going to get extremely hot.

The purpose of heat-rejecting window film is to reduce the amount of solar energy entering through the glass.

That can make a meaningful difference while you’re driving and your air conditioning is working to cool the cabin. Instead of continuously fighting as much solar energy coming through the windows, you’re reducing part of the heat load at the glass.

Think about driving west through Phoenix late in the afternoon with intense sunlight coming through the driver’s side window or windshield. The air conditioner may be running perfectly, but you can still feel the sun heating your arm, face and interior surfaces.

Reducing that solar exposure is where quality automotive film earns its place in an Arizona vehicle.

There’s Also the UV Problem

Heat gets most of the attention during a Phoenix summer, but ultraviolet exposure is another reason to consider automotive window film.

UV radiation doesn’t disappear when you get into your car. Drivers can accumulate significant sun exposure through vehicle windows over years of daily driving.

UV exposure also affects the vehicle itself. Dashboards, leather, plastics, trim and upholstery are repeatedly subjected to intense Arizona sunlight.

Quality automotive window film can block the overwhelming majority of harmful UV radiation, adding another layer of protection for both occupants and the vehicle’s interior.

For someone who keeps a vehicle for several years in Arizona, that’s worth considering alongside heat rejection.

Don’t Assume Darker Means Better

One of the most common misconceptions about automotive tint is that the darkest film must provide the greatest heat protection.

It doesn’t work that way.

Visible Light Transmission, or VLT, describes how much visible light passes through the glass and film. Heat rejection involves other parts of the solar spectrum and depends heavily on the construction and quality of the film.

This means a premium ceramic film can provide excellent heat-rejection characteristics without necessarily being the darkest tint available.

That gives Phoenix drivers more flexibility when balancing heat rejection, visibility, appearance and Arizona’s legal requirements.

Before selecting a shade, it’s also important to understand Arizona’s automotive window tinting laws, including the different requirements that apply to front side windows, rear windows and windshields.

A professional tint installer can help you select a film that provides the performance you’re looking for while staying within applicable Arizona requirements.

Extreme Heat Makes Film Quality More Important

Arizona is a difficult environment for automotive products.

Window film is exposed to intense sunlight, high glass temperatures and years of repeated heating and cooling. That’s one reason professional installation and film quality matter.

Cheap tint may look acceptable immediately after installation, but the real test isn’t how it looks on day one. It’s how the film performs and looks after years of Phoenix summers.

Quality film, proper glass preparation and professional installation help prevent the bubbling, peeling, discoloration and poor appearance commonly associated with low-quality tint jobs.

If you’re tinting a vehicle specifically because you’re tired of fighting Phoenix heat, it makes sense to evaluate the film’s actual performance, not simply ask for the darkest tint or the cheapest installation.

Another 115°F Day Is a Reminder of Why Arizona Drivers Tint Their Cars

Extreme heat isn’t unusual in Phoenix, but prolonged stretches approaching 115°F and above put the intensity of the Arizona sun into perspective.

The current National Weather Service Extreme Heat Warning is another reminder that vehicles in the Valley operate in conditions that are very different from most of the country.

Automotive window tint can’t change the temperature outside, and it won’t turn a parked car into a refrigerator.

What quality window film can do is reduce the solar energy entering through the glass, reject UV radiation, reduce glare and make the cabin more comfortable when you’re behind the wheel.

And when Phoenix is staring at another week of 110°F-plus temperatures, reducing the amount of Arizona sun entering your vehicle starts to make a lot of sense.

Clear View Glass & Tint provides professional automotive window tinting throughout Greater Phoenix, with multiple film options available depending on the vehicle, desired appearance, heat-rejection goals and budget.

If you’re considering tint primarily because of the heat, don’t choose a film based only on how dark it is. Ask about its heat-rejection performance, UV protection, warranty and construction — and choose the film that makes sense for the way you actually drive in Arizona.