South Africa's headline consumer price inflation quickened to 4.9% year on year in August from 4.6% in July, data from Statistics South Africa showed on Wednesday. On a month-on-month basis, the consumer price index was at 0.4% in August from 1.1 % in the previous month. Core inflation, which excludes prices of food, non-alcoholic beverages, fuel and energy, edged up slightly to 3.1% year on year in August, from 3.0% previously. On a month-on-month basis core inflation was at 0.3% from 0.5% previously.