air conditioning

[Amech2]

I"ve had my Jetta for almost 1 year. The air conditioning works fine when the outside air temp is below 90, anything over that the air never really gets cold. The low pressure side seams to be at the correct pressure. Does anyone have a idea of what is wrong? 2008 SE

[isco6]

check the cabin filter.

[nitroscope8]

If you have the ability to check pressures, what is the ambient temp, low pressure, and high pressure readings with a/c on full blast at 2000 rpm?