The seasonally and working-day adjusted surplus eased to 34.1 billion euros from 37.8 billion a month earlier, when it was at highest level on record for the euro zone.

The unadjusted data showed the surplus surging to 44.8 billion euros from 27.8 billion as the surplus from goods trade and services both rose sharply.

For the latest 12 months, the 19-country currency bloc's surplus increased to 3.4 percent of gross domestic product from 3.3 percent a year earlier.