A/C stops cooling intermittently while driving on 2004 Honda Civic Hybrid

The A/C cools when I start up the car, and runs nicely for a while, but cuts out when I've been driving for a while. Then it will intermittently cool, but at less than full capacity.

Asked by for the 2004 Honda Civic Hybrid
the first thing is to look at the a/c system pressures with a good set of gauges. if the pressures are normal,
would next check the amperage draw on the clutch.