However, jumped in the east of the country, which supplies a small amount of the harvest, according to field reports from farmers on Tuesday.
Cocoa is Cameroon's main export crop and is mainly grown in the central and south-western regions, each of which account for 40 per cent of output. The south produces 15 per cent and the east accounts for the remaining 5 per cent.
The country is the world's fifth largest cocoa grower. Its season runs from August 1 to July 31, with the main harvest from October to January or February and the light crop harvest from April or May to July.
Farmers in the two main regions and the south said prices had dipped on the shortage of beans leading to fewer buyers making the trek to growing areas.
"There are few buyers too as the light crop harvest has not yet started," said Emmanuel Nnogo Akolo, a local cooperative society leader at Emana, in Centre Region.
The trend was bucked in the east, where farmers said beans were selling at 1,000 CFA francs per kilogramme, up from 875 CFA francs last month.
"This is the highest price we've ever had in this part of the country," said Janvier Gbaman, the local cooperative society leader in Bertoua, one of the region's main towns.
"I believe it is because we are also having buyers coming in from the southern neighbouring countries of Congo-Brazzaville and Gabon," he added.
Cocoa plantations are expanding in Cameroon's North-West, West and Adamawa regions, where the crop enjoys the warm temperatures of the deep valleys.