The Automobile Association of South Africa is predicting a 20c a litre increase in the price of fuel at the end of July.
In a statement on Friday the AA said that "the increases we expect at the end of July have mainly been driven by the weaker Rand / US dollar exchange rate."
"The Rand accounted for about two-thirds of the hike, with a slight uptick in international fuel prices contributing the remainder," said the AA.
“We expect petrol to increase by around 20 cents a litre, but diesel is predicted to go up by nearly 31 cents, with illuminating paraffin showing a 27 cent hike,” the AA said.
"While the Rand continues its volatile trend, international fuel prices have surged strongly in the past ten days. If this upwards movement continues into August, fuel users can expect further bad news," the AA concluded.