What is the appropriate temperature setting for a car's automatic air conditioning?
4 Answers
The most suitable temperature for car air conditioning in summer should be 21-25°C, and in winter it should be 25-28°C. This is the automotive comfort environment standard established by the car air conditioning industry. Below are the detailed explanations: 1. Suitable temperature range: The temperature difference between the inside of the car and the external environment should not be too large. The ideal temperature difference between the inside and outside of the car is within 10°C for sedans and 8-12°C for large buses. When using the air conditioning for a long time, you can periodically open the windows slightly to ensure fresh air inside the car and avoid "air conditioning sickness." 2. Precautions for using air conditioning: Prolonged use of the internal circulation mode can reduce the oxygen level inside the car, and harmful gases such as carbon monoxide produced by incomplete engine combustion may accumulate in the car. Therefore, it is necessary to periodically switch to the external circulation mode to allow fresh air from outside to enter the car.
I think setting the automatic air conditioning between 22°C and 24°C is most appropriate, as it falls within the most comfortable temperature range for the human body—not too cold to avoid catching a cold, nor too hot to cause sweating. In summer, I usually set it around 24°C, which helps save a bit of fuel and reduces the load on the AC compressor. In winter, combined with the heater, setting it at 22°C keeps things comfortably warm. From a health perspective, maintaining a stable temperature can reduce driving fatigue, especially during long trips. It’s also important to pay attention to switching between recirculation and fresh air modes—for example, using fresh air mode to circulate outside air or switching to recirculation on rainy days to prevent fogging. Regularly checking the cabin air filter is crucial to prevent bacterial growth and maintain air quality. Overall, 22°C to 24°C is a safe zone—give it a try!
Every time I get in the car, I set the automatic air conditioning to 24°C. This is both comfortable and energy-efficient, as the compressor won’t frequently start up, saving some fuel costs. Setting it too low, like 20°C, may increase energy waste and isn’t environmentally friendly. I often use the recirculation mode briefly to prevent outside pollutants from entering. During mornings and evenings when temperatures are moderate, setting it slightly higher is ideal. This saves fuel while reducing carbon emissions—a win-win. During long drives, a stable temperature helps me stay more relaxed.
I recommend setting the air conditioning to 23 degrees as the ideal temperature. Too high and it feels stuffy, too low and it wears out compressor components, shortening the system's lifespan. For daily driving, maintaining this temperature is worry-free and safe. In cold weather, slightly adjust to 22 degrees to complement the heating. Regular cleaning of the air ducts is key.
