
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 interior temperature. Additionally, there is the car water temperature gauge. Below are detailed explanations about the car water temperature gauge: Overview: The sensor of the water temperature gauge is a thermistor-type sensor. It is fixed with threads to the engine cooling water passage. The thermistor determines the current flowing through the coil winding of the water temperature gauge, thereby driving the pointer on the gauge to swing. Additional Information: Traditionally, tap water was used as the cooling water for car engines. Currently, most car engine cooling systems use specialized coolant. Therefore, it is also referred to as the coolant temperature gauge.

Last summer when I drove to the supermarket and parked in an open-air parking lot for half an hour, the temperature inside the car actually rose to around 65°C—it was like a steamer! When I went in to get my things, the air felt scorching hot, my case softened, and the seats were too hot to sit on. I forgot to use a sunshade that time and regretted it deeply. Don’t underestimate this—under direct sunlight, the temperature inside a closed car can rise extremely quickly, soaring above 70°C within just 20 minutes. Prolonged exposure like this can damage car seats and dashboards, and the battery is prone to aging. I suggest always looking for shade or a corner of the parking lot before parking, or buying a reflective sunshade—safety first.

As a parent, I'm particularly vigilant about high temperatures inside the car. When taking my child out in summer, if the car is parked in the sun for just over ten minutes, the temperature can rise above 55°C. Once when I stopped to buy water and returned, the car displayed 70°C - thankfully I hadn't left my child inside. Such extreme heat is incredibly dangerous, as children can easily suffer heatstroke or even life-threatening situations. Actual data shows temperatures can reach 80°C, so I always remind myself to develop these habits: open windows to ventilate before driving, run the AC for a while before letting anyone sit inside, always park in shaded areas, and never cut corners for convenience.

From a temperature perspective, car interiors heat up extremely quickly in summer. Sunlight passes through the glass and directly heats the air, turning the enclosed space into a greenhouse. If the outdoor temperature is 35°C, the interior can exceed 60°C in a short time. I once measured the car thermometer and it rose to over 70°C within an hour in the afternoon. High temperatures can cause plastic parts to deform, affect electronic devices, and may even lead to heatstroke. It's recommended to use sunshades more often to cool down and avoid prolonged exposure to direct sunlight.

I have some understanding of the physics behind it. The high temperature inside a car in summer is due to the conversion of light energy into heat energy, combined with the rapid heat buildup from stagnant air. Under normal outdoor conditions of 30°C, the temperature inside a car under sunlight can rise to 50°C within minutes, and can reach 70°C within half an hour, even exceeding 80°C. I use a thermometer to record these temperatures, and the car paint is prone to aging as a result. Installing heat-insulating films can help reduce the temperature rise, and leaving windows slightly open for ventilation when parking is crucial.

Regarding the issue of high temperatures inside vehicles, I emphasize safety. Numerous cases show that parking for extended periods in summer can lead to temperatures reaching 70-80°C, causing heatstroke or igniting items. I often share data: actual measurements have recorded highs of over 70°C. It's advisable to park in shaded areas, check the air conditioning before driving, and carry water to cool down during trips. Simple habits can help avoid risks.


