Arrivals at Ivorian ports as of Sunday had increased by 46 percent since the beginning of the season compared to the same period last season.
"I don't know what's happening but there is so much cocoa this year that even I am surprised," said a buyer in the western town of Guiglo.
However, analysts said wet weather, which has raised concerns among some farmers about possible fungal disease, could scupper the record harvest.
"Wet weather kind of works against the beans in the drying process and slows it down," said Stephen Mass, a commodities analyst at the Hightower Report. "So it may cause near-term output to slow over the next couple of weeks."
Stephen Platt, futures specialist at Archer Financials, said that despite high production he expected cocoa prices to be supported by strong demand and a potential weakening of the dollar.
"The market is still pretty well-balanced, looking at a modest surplus," he said. "My own suspicion is the crop looks good, but I think that if we start seeing some weakness in the dollar, that should start to underpin the market."