The leu closed at 4.5085/4.511 per euro, from 4.52 per euro a day earlier.
It had opened at 4.513 against the euro and traded near 4.51 to the euro for most of the day, in a quiet market.
The central bank set the leu’s reference at 4.5144 versus the euro, modestly stronger from a six-week low of 4.5176 per euro Monday. Against the US dollar, the leu’s reference weakened marginally to 3.4999 units, from 3.4977 units in the previous session.
In the money market, overnight rates were at 4.7%-5.2% a year, little changed on the day.