Oct 4 (Reuters) - South Africa's rand strengthened in early trade on Tuesday, ahead of the central bank's biannual monetary policy review due later in the day.

At 0635 GMT, the rand traded at 17.7200 against the dollar, 0.76% stronger than its previous close.

The dollar index , which measures the currency against six rivals, was last down 0.22% at 111.32. read more

Emerging market currencies including the rand were aided by a softer dollar after the safe-haven currency lost some support overnight following local economic data showing a slowdown in U.S. manufacturing.

At home, investors will be looking at the South African Reserve Bank's release of its biannual monetary policy review later in the day, which could shed light on the trajectory for interest rates in Africa's most industrialised economy.

The government's benchmark 2030 bond was up in early deals, with the yield down 9 basis points to 10.590%.

Our Standards: The Thomson Reuters Trust Principles.