Over time, the tire pressure decreases. The pressure also varies depending on environmental conditions. All of this is normal. However, if you drive with the wrong tire pressure, the tires may overheat and become damaged. The tire pressure affects ride comfort, noise levels and handling characteristics.
Make it a habit to check the tire pressure monthly and before longer trips. Always make sure you use a reliable pressure gauge. To keep the tires in good shape, use the recommended tire pressure for cold tires.