JOHANNESBURG: South Africa's rand weakened on Thursday as the U.S. dollar firmed and weak domestic mining and manufacturing data pointed to soft economic growth at the start of the year.

Stocks declined, led by gold miners, as the price of the yellow metal dropped.

At 1502 GMT the rand had weakened by 0.5 percent to 13.9925 per dollar.

The dollar index, which measures the currency against a basket of six others, rose on Thursday after reports that U.S. March producer prices had posted the biggest rise in five months, and after weekly jobless claims fell to the lowest since 1969.

Locally, data from Statistics South Africa showed that mining output was down 7.5 percent year-on-year in February, while manufacturing production barely grew, rising by 0.6 percent.

"The latest activity figures add to the evidence that growth in South Africa softened at the start of 2019. Conditions will probably pick up later in the year, but growth will remain tepid," said John Ashbourne, senior emerging markets economist at Capital Economics.

In fixed income, the yield on the benchmark government bond due in 2026 added 3.5 basis points for 8.49 percent.

On the bourse, the broader All-Share index fell 0.39 percent to 58,186, while the blue-chip Top-40 index  declined 0.42 percent to 51,942.

Gold stocks fell 2.97 percent with AngloGold Ashanti shedding 3.5 percent to 184.92 rand and rival Gold Fields slipping 3.18 percent to 53.30 rand.