My air conditioning is sufficiently cold but occasionally I've noticed a little thin film of condensation on the lower surface of the windshield. The area is across most of the width of the windshield in the bottom eighth. This would be on hot days, about 30 Celsius or 86 Fahrenheit.
What is the cause and solution for this problem?
2002 Acura RSX, The air conditioning compressor was replaced one year ago.