What is the appropriate temperature to turn on the air conditioner in hot weather?

It is more appropriate to turn on the air conditioner at about 24 degrees in hot weather.

When using air conditioning, the indoor and outdoor temperature difference should not be too large, generally around 8℃ to 10℃. Although there may be hot weather above 38℃ in summer, the temperature is below 35℃ for most of the day, so the indoor temperature is about 26℃.

Extended data:

When cooling in summer, when the temperature is set at 26~27 degrees Celsius, the cooling load can be reduced by more than 8%. When heating in winter, setting the temperature 2 degrees Celsius lower can also save electricity10%; When people sleep, their metabolism decreases by 30%~50%. Setting the air conditioner in the sleeping area and raising the temperature by 2 degrees Celsius can save electricity by 20%.

For people who sit still or work lightly, if the room temperature is kept at 28~29 degrees Celsius and the relative humidity is kept at 50%~60%, people will not feel stuffy or sweaty, which belongs to the comfortable range.