How hot will a black car get in the sun?
A black car will get noticeably hotter than a lighter-colored car because dark surfaces absorb more solar energy. Under strong midday sun (solar irradiance around 1,000 W/m² on a clear day), exterior surface temperatures—hood, roof, door handles—can exceed ambient air temperature by 20–40°C. That means on a 30°C day those surfaces commonly reach 60–80°C (140–176°F).
Interior temperatures: The greenhouse effect through glass makes interiors much hotter than ambient. Typical observed ranges: 20–30 minutes of sun can raise cabin temperature 15–25°C above outside; within an hour cabins can reach 50–80°C when ambient is 25–35°C. Steering wheels, seats and child-seat buckles can be hot enough to cause burns.
Key factors that change how hot a car gets
Color: Black absorbs more visible and infrared radiation. Lighter colors reflect more and stay cooler. Material: Metal roofs and dark plastic trim heat faster. Surroundings: Asphalt and concrete radiate extra heat. Glazing and tint: Solar-control glass and legal window tints reduce heat gain. Ventilation and shade: Even small airflow or shade cuts peak temperatures.
Practical safety notes
Never leave children or pets in a parked car. Use sunshades, park in shade or a garage, consider a reflective car cover, and pre-cool the cabin with remote start or ventilation before driving. Check interior materials—vinyl and leather get especially hot—and protect them (covers or UV protectants).
Automotive industry insights
Manufacturers and suppliers are reducing heat buildup with solar-control glass, infrared-reflective pigments and lighter paint options. In EVs, cabin and battery thermal management is critical: excessive heat lowers battery life and reduces range, so active cooling/preconditioning systems are increasingly common. OEMs also recommend materials and coatings that resist UV degradation to preserve paint and trim.
Bottom line: A black car in full sun can reach surface temperatures well above ambient—often 20–40°C hotter—and cabins can exceed 50–70°C on hot days. Use shade, glazing, covers and preconditioning to reduce risks and protect occupants and vehicle systems.
