SAO PAULO, July 11 (Reuters) - Brazil's central bank will sell up to $1 billion in a dollar auction with repurchase agreement on July 15, it said in a statement on Friday.
The auction will start at 10:30 a.m. local time (1330 GMT) on Tuesday, the central bank said, adding the repurchase is set for November 4.
In recent months, the central bank has been promoting auctions to roll over maturities scheduled for the beginning of each month.
The auction announced on Friday targets the rollover of the maturities set for August 4 - the business day following the start of the United States' 50% tariff on products sold by Brazil, which begins on August 1 .
The tariff announcement on Wednesday brought volatility to the Brazilian foreign-exchange market, with the spot real closing on Friday with 2.28% weaker against the dollar.