The median forecast of 15 analysts showed annual inflation at 20.50% in December, up from 18.7% in November, which was the highest since December 2017.
"This is primarily due to pass-through effects from the pound's depreciation at the end of October, as well as further weakening of the currency in the parallel market through December," Goldman Sachs said in a note.
Five analysts also forecast that core inflation would climb to 23.6% from 21.5% in November.
The state statistics agency CAPMAS will release November inflation data on Tuesday morning.
The steady increase in inflation would put pressure on the central bank's Monetary Policy Committee to raise interest rates when it next meets on Feb. 2.
"This is primarily due to pass-through effects from the pound's depreciation at the end of October, as well as further weakening of the currency in the parallel market through December," Goldman Sachs said in a note.
