How Many Degrees Celsius Can a Car Reach in Summer?
4 Answers
In summer, the temperature inside a car can reach up to 90°C. The main function of a car thermometer is to accurately measure and display the internal temperature of the vehicle. Additionally, there is a car water temperature gauge. Below are detailed explanations about the car water temperature gauge: 1. Overview: The sensor of the water temperature gauge is a thermistor-type sensor. It is fixed to the engine cooling water passage with threads. The thermistor determines the current flowing through the coil winding of the water temperature gauge, thereby driving the pointer on the gauge to swing. 2. Others: Traditionally, tap water was used as the cooling water for car engines. Currently, most car engine cooling systems use specialized coolant. Hence, it is also referred to as the coolant temperature gauge.
How hot can a car get in summer? I have personal experience with this. Last year, I parked my car outdoors on a 35-degree day and forgot to close the windows. When I returned two hours later, a wave of heat hit me as soon as I opened the door, and the dashboard was so hot I couldn't touch it. I measured the temperature with a thermometer, and it had reached 65 degrees! And this was a light-colored car—a black car might have been even hotter. This kind of high temperature isn't just uncomfortable; it's dangerous—there have been cases where pets left in cars for just a few minutes suffered serious consequences. So now, I’ve made it a habit to use a sunshade on the windshield and leave the windows slightly open for ventilation when parking. Actually, the temperature depends on the weather, car color, and exposure time. Generally, a car can reach over 40 degrees in just half an hour under the sun, and after a few hours, it can peak at 70 degrees. A reminder to everyone: never leave children or pets in the car on hot days—safety first.
From a physics perspective, it's quite fascinating how cars heat up in summer. Sunlight enters through the glass, and the heat gets absorbed by seats and interior materials, but thermal radiation can't escape, creating a greenhouse effect. Under direct sunlight, cabin temperature can exceed 50°C within just one hour. If windows are closed during prolonged exposure, temperatures easily surpass 60°C or even 70°C. Dark-colored vehicles absorb heat faster—my neighbor's black car once recorded 68°C on a hot day. Contributing factors include ambient temperature, wind speed, and parking location (e.g., concrete surfaces retain more heat than grassy areas). Remember: Don't rely solely on AC—after extreme heat exposure, always ventilate by opening windows before starting the engine to avoid health risks.
This issue really worries me. I tested the temperature inside my car, and after two hours in the sun, it soared past 60°C, with the steering wheel becoming unbearably hot. The risks of high temperatures are severe—if a child or pet were trapped inside, just a few minutes could lead to tragedy. Never underestimate summer parking; the car interior quickly turns into an oven when exposed to the sun. I recommend everyone get a simple thermometer to measure and understand the actual conditions. Preventive measures include using a car cover or parking in the shade—don't take the risk.
