Investors have also started wagering on a quicker pace of monetary policy easing by the Federal Reserve this year ahead of a slew of US economic data this week, headlined by Thursday's nonfarm payrolls report.
That spurred Dollar selling, leaving the euro perched at a near four year high of $1.1808.
The single currency surged 13.8% in the January and June period, its strongest ever first half performance, data showed.
Sterling was steady at $1.3739, not far from the three and a half year high it touched last week, while the Japanese yen firmed to 143.77 per Dollar.
The Yen has gained 9% in the first half of the year, its strongest performance since 2016.
The Dollar index, which measures the US currency against six others, slipped to 96.612, it’s lowest since February 2022.
"There are many reasons not to like the US Dollar. Some are structural, like the erratic trade policies and fiscal risks," said Moh Siong Sim, a Currency Strategist at Bank of Singapore.
--Reuters--