What is the Suitable Temperature for Car Air Conditioning in Summer?
4 Answers
In summer, the most suitable temperature for car air conditioning is generally 26℃. Here is some relevant information: 1. Temperature difference between inside and outside: It is best to keep the temperature difference between the inside and outside of the car within 10℃. The most comfortable temperature for the human body is between 24℃ and 27°C. Additionally, the local weather temperature should be considered, and the indoor-outdoor temperature difference should not exceed 5℃. If the temperature difference between the inside and outside of the car is too large, it can easily lead to air conditioning sickness, with common symptoms including loss of appetite, nausea, and migraines. 2. Temperature set too low: Setting the temperature too low can increase the burden on the air conditioning system and reduce cooling efficiency. Moreover, keeping the air conditioning on for extended periods is not advisable, as it can lead to headaches—a common symptom of air conditioning sickness, primarily caused by a large temperature difference between indoor and outdoor environments. Choosing the right air conditioning temperature becomes a matter of knowledge.
In summer, I usually set the car air conditioning temperature between 22 to 24 degrees Celsius. This range feels most comfortable for the body—not too cold to cause joint pain or colds, nor too hot to make the skin sweaty and sticky. During long drives, temperatures below 18 degrees can easily lead to colds, especially for the elderly and children. Avoid directing the vents straight at the face to prevent headaches or dryness discomfort. For cars with automatic air conditioning, pressing the AUTO button will automatically adjust the fan speed and direction, making it efficient and convenient. A suitable temperature also helps maintain focus while driving, as extreme cold can cause physical tension and distraction. Combining the use of internal and external circulation is recommended—use internal circulation during midday to prevent external hot air from entering. Overall, a setting of 22-24 degrees is both comfortable and safe.
I usually set the air conditioning to around 24°C because higher temperatures increase fuel consumption. The compressor working at high intensity will raise fuel usage, especially in traffic jams. From my experience, setting it at 24°C saves about 30% more fuel than 18°C, and also reduces engine load. Many cars now have automatic functions that adjust the fan speed after setting the temperature, improving efficiency. In the morning, you can use the external circulation to bring in cooler air, then switch to internal circulation at noon to maintain the temperature. Regularly cleaning the AC filter is also important, as dust buildup can affect cooling performance. Considering both environmental protection and cost savings, 24°C is a good balance—I recommend everyone try it.
For cars with automatic air conditioning, after starting the car, I press the AUTO button and directly set the target temperature, such as 23 degrees. The system will automatically control the fan speed and mode based on the temperature and humidity inside the car, without the need for manual intervention. 23 degrees is a scientifically recommended value, ensuring stable compressor operation and preventing excessive wear. After setting, the air conditioning will maintain the target temperature and reduce speed, making it highly efficient and energy-saving. I can also adjust the airflow direction or circulation mode through the central control screen, but maintaining the temperature at this point is sufficient. Setting it too low wastes cold air, while setting it too high may not be cool enough. Keeping the filter clean prevents bacterial growth. The range of 20 to 24 degrees is a standard choice.
