The euro remained under pressure Friday with worries over Greece's economy intensifying.
The currency slipped to a nine-month low against the yen and a six-month low against the dollar.
The main focus will be on U.S. GDP numbers due Friday, with economists expecting an annualized growth of 4.6% in the fourth quarter, double from the quarter before.
The dollar index received a slight boost ahead of that to touch a five-month high at one point.
Meantime, traders digested data from Japan showing a fall in December CPI. This was the tenth straight month of annual declines, as weak consumer demand kept the country stuck in deflation.
Meantime, the higher-yielding Australian and New Zealand dollars both slipped, with both currencies briefly hitting their lowest in a month against the greenback.
In the energy markets, oil prices recovered from a decline in the previous session. NYMEX crude traded around $73.80 a barrel.
Gold prices inched lower to $1,083/oz hurt by the rising dollar and waning risk appetite among investors.
