Singapore's exports in July tumbled more than expected as sales to China and the United States fell, leaving the trade-reliant economy struggling.
The dollar hit its lowest in seven weeks on Tuesday, dipping below 100 yen for the first time since June.
The dollar was softer, pegged back by sluggish U.S. data that tempered expectations of a Federal Reserve interest rate hike.
The dollar held lower at the end of a week dominated by flows into higher-risk currency plays like the Australian and Canadian dollars.
The New Zealand dollar surged after its central bank made a smaller interest rate cut than some had expected.
The U.S. dollar fell broadly on Wednesday as U.S. Treasury yields fell and investors waited on a speech by Fed Chair Janet Yellen.
Sterling fell against the dollar after the Bank of England hinted at further easing.
This comes ahead of a week of data likely to feed the debate on the chances of a rise in U.S. interest rates this year.
The U.S. dollar reversed losses to trade about a third of a percent higher Friday after the headline figure on the July employment report topped expectations.
Sterling saw its biggest falls since the aftermath of June's Brexit vote.
The dollar gained as ADP jobs data revealed new U.S. private sector jobs, suggesting an improving labor market.
The euro rose above $1.12 for the first time in more than a month, while the yen hit its strongest in three weeks.
The dollar recovered after its poorest weekly performance in three months, while the yen weakened after surging more than 3 percent.
The yen soared against the dollar after a round of modest monetary policy easing from the Bank of Japan disappointed investors.
The dollar fell against the yen as expectations faded of the Bank of Japan delivering a radical stimulus package this week.
The U.S. dollar gained against the euro and the yen after the Federal Reserve left the federal funds rates unchanged on Wednesday.
The yen hit a high against the euro and rose against the dollar as traders lower expectations of a Japanese stimulus injection.
The pound is expected to push even lower, according to currency analysts, as the first signs emerged of the impact it's giving to the business sector.
The dollar inched up against the yen ahead of meetings at the Bank of Japan and the Fed which investors expect to be dollar-positive.
The dollar index also hit its highest level since March.