How much higher is the temperature inside a car compared to outside in summer?

[MacVanessa]

In summer, the temperature inside a car is generally 30-50 degrees higher than outside. Precautions for car use in summer: 1. Avoid prolonged exposure to sunlight: For the car body surface, metal surfaces absorb heat more easily and reach higher temperatures, with the hood temperature being particularly high. High temperatures are detrimental to car paint and interior materials. Prolonged exposure to high temperatures can cause the paint to crack or blister, damaging the car body and accelerating the aging of interior materials. 2. Do not place flammable items in the car: Since the temperature inside a car is much higher than outside in summer, it is advisable to avoid placing flammable or explosive items inside. If the car is parked outdoors, it is recommended to use a car cover to shield the body or a sunshade to cover the front windshield to avoid direct sunlight. Always open the doors to ventilate before entering the car, and you can turn on the air conditioning and spray water to cool down before getting in.

[DiArthur]

As someone who frequently drives during summer, I've noticed a significant temperature difference between the inside and outside of the car. Typically, parking under direct sunlight for about half an hour can raise the interior temperature by 20 to 30 degrees compared to the outside. For example, on a summer day last year when the outside temperature was 35 degrees, I parked my car and returned after an hour of errands to find the interior temperature reading at 58 degrees, making it unbearably hot. The main reason is that car windows act like a greenhouse, allowing sunlight in but trapping heat, especially with darker-colored car bodies that absorb more heat. Don't underestimate this issue—high temperatures inside the car are unsafe for both people and pets, increasing the risk of heatstroke. I recommend parking in the shade or using a sunshade to effectively reduce the temperature difference.

[VonKendra]

I have studied some basic physics and understand that the temperature inside a car skyrockets in summer due to the greenhouse effect. The glass windows allow sunlight to enter and heat up interior materials such as seats and dashboards, but the infrared radiation is blocked and cannot escape. Data shows that the temperature difference between the inside and outside of a closed car parked in the sun can exceed 25 degrees Celsius within 30 minutes. Factors influencing this include solar intensity, parking duration, and vehicle color. Dark-colored cars heat up more than light-colored ones. To cool down, you can leave the windows slightly open for ventilation before parking, or choose to park in the shade to avoid prolonged direct exposure.

[AniyahFitz]

I am particularly concerned about summer car safety. The temperature rises very quickly. When the outside temperature is 30 degrees, it only takes 10 minutes for the car interior to exceed 40 degrees, with a difference of up to 10-15 degrees. This can easily lead to accidental heatstroke, especially for children or pets trapped in the car. In real cases, a few seconds of negligence can lead to tragedy. It is recommended to open windows for ventilation and check the temperature before getting in the car, and park under a sunshade to reduce heat buildup. Safety first, don’t overlook this detail.

[MacBentley]

As a seasoned car owner, I have some tips for managing in-car heat. The temperature difference inside a closed car in summer can range from 15 to 40 degrees higher than outside. Parking in unshaded areas leads to the fastest temperature rise. I typically use reflective windshield covers and car curtains to reduce heat. Additionally, I open all doors to ventilate for a minute or two before getting in; or choose vehicles with light-colored interiors, as they absorb heat more slowly. Factors like parking duration and sun intensity affect the degree of heat buildup, with avoiding prolonged parking during peak afternoon heat being most effective.