Even though the Federal Reserve was almost certain to raise interest rates later in the day, disappointing retail sales and inflation numbers cast doubt on the speed of its monetary policy tightening.

The STOXX 600 <.STOXX> index fell 0.3 percent with the banks <.SXEP>, whose lending business gets a boost in margins when rates rise, taking off most points from the pan-European index with a fall of 1.3 percent.

The oil sector <.SXEP> fell 1.6 percent to six-month lows as crude prices tumbled to a five-week low following data showing an unexpectedly large weekly build in U.S. gasoline inventories.

Shares had earlier been supported by data showing that euro zone industrial output grew in April, and that employment rose in the first quarter of the year to reach a record high.

Among outstanding movers, the Swedish measurement technology firm Hexagon (>> Hexagon) rose 10.8 percent to a new record high after a Wall Street Journal report that it was in talks about a potential sale to undisclosed buyers.

Hexagon said that the market would be immediately informed should evaluations lead to concrete results.

Technology stocks <.SX8P> rose 0.4 percent, clawing back some ground after a nosedive fuelled by jitters over valuations, particularly in the U.S..

Tech sector aside, the trend of defensive stocks outperforming cyclical sectors continued, with utilities <.SX6P> among the best-performing sectors, up 0.6 percent.

"We expect the dominant market narrative over the coming months to be the fade in Euro area PMI momentum," said Deutsche Bank European equity strategist Sebastien Raedler.

"We remain underweight European cyclicals versus defensives, which have underperformed by 4 percent since early May, as Euro area macro surprises have started to roll over."

Among utilities, France's EDF (>> Electricité de France) rose 3.3 percent after appointing a new manager to run its British unit handling the construction of two nuclear reactors at Hinkley Point C.

British housebuilder Bellway (>> Bellway) gained ground after its trading update showed that robust demand for homes had not slowed ahead of the national election on June 8.

The builder's upbeat tone also lifted peers Barratt Development (>> Barratt Developments) and Taylor Wimpey (>> Taylor Wimpey).

(Reporting by Helen Reid and Danilo Masoni; Editing by Kevin Liffey)

By Helen Reid and Danilo Masoni