The leu closed at 4.2625/4.2635 to the euro, compared with 4.2720/4.2740 to the euro at Friday closing.
It opened up and touched an early high at 4.26 per euro. It later eased part of the gains and traded in narrow ranges throughout the session, on reduced volumes.
At the end of Bucharest session, the Polish zloty was gaining 0.1% against the euro, while the Hungarian forint was flat.
The Romanian central bank set the leu’s reference rate at 4.2611 per euro, slightly stronger from 4.2669 per euro Friday.
On the money market Monday, overnight rates fell to 2.25%-2.75% a year, from 4.2%-4.7% a year in the previous session.