It dropped by 10 basis points to Rp10,300 from previously at Rp10,290 against the dollar in inter-bank trading.
Samuel Sekuritas economist, Lana Soelistianingsih, meanwhile said the rupiah exchange rate seemed to continue to be pressured moreover after the country`s foreign exchange reserves declined to US$92.67 billion in July.
She said domestic foreign exchange swap activities were not yet quite effective to strengthen the rupiah.
In the trade on the second week of August most Asian currencies weakened such as Malaysian ringgit, Philippine peso and Taiwan dollar.
"Perhaps the rupiah would move at a range of Rp10,300 and Rp10,380 against the US dollar," she said.
The head of research of Monex Investindo futures, Ariston Tjendra, said the decline in economic growth and inflation hike were the main drivers of the rupiah depreciation.
"The condition has been worsened by a decline in foreign exchange reserves," he added.
He said another factor contributing to the situation is foreign capital outflows.
"The rupiah may worsen in the future if the Fed really stops its stimulus program," he said.
Bank Indonesia`s rupiah middle rate of exchange on Thursday was recorded at Rp10,318, down from Rp10,297 per US dollar.(*)
Editor: Heru Purwanto
Copyright © ANTARA 2013
