An engine temperature over 220 degrees Fahrenheit is considered overheating in a car, though some cars are better at handling excessive heat than others.
Engine damage can begin once the temperature surpasses 20 degrees over its normal operating temperature. Check your temperature gauge, located on the dashboard, to make sure you’re operating at the correct temperature.
If your car is running hot, ensure it has enough coolant and that there is not a coolant leak. Monitor the situation, and if you notice signs of proper overheating, stop driving and have the problem addressed right away.