The euro weakened against the US dollar and the yen after European Central Bank President Mario Draghi said the euro-zone was expected to stay in recession next year, reversing an earlier forecast for a recovery in economic growth.
The downgrade to the outlook for gross domestic product came as the ECB left its benchmark interest rate at a record low 0.75 per cent. Draghi said that there had been wide discussion on interest rates within the ECB, which taken together with the weaker growth track has stoked speculation the central bank may cut rates next year.
The euro fell 0.9 per cent to $1.2954 and dropped 1 per cent to 106.64 yen after the statement.
"By the second part of the next year, we should see the beginning of a recovery" in Europe, as the global economy picks up pace, Draghi said.
The ECB forecasts the region's economy will shrink 0.5 per cent this year, worse that the 0.4 per cent contraction it forecast three months ago. The economy would shrink 0.3 per cent in 2013, compared to an earlier forecast of 0.5 per cent growth.