The price of petrol looks set to increase by 43 cents per litre according to unaudited mid-month fuel price data, the Automobile Association said on Friday.
The AA said current data indicates that diesel will rise by 62c/l and illuminating paraffin by 47c/l.
"Recent reductions in the fuel price have been dealt a blow by a steady increase in international petroleum prices during the first half of February," it said.
The association said it expected prices to rise due to a combination of the weakening rand and a steady uptick in the international oil price.
"The Rand has slipped from R13.20 against the dollar on 1 February to R14.12 on 14 February. This is not good news for fuel users at a time when oil is also rising," the AA says.