The leu opened at 4.353/4.355 to the euro, slightly stronger than 4.3545/4.356 to the euro at Monday closing.
It later weakened to 4.357/4.3585 to the euro, before returning to the opening levels by 10:00 local time (GMT0800).
Trading was calm also in the other markets in the region, with the Hungarian forint and the Polish zloty staying flat against the euro.
The Romanian central bank set Monday the leu’s exchange rate at 4.3481 per euro, about 0.25% weaker on the day.
On the money market Tuesday morning, overnight rates were down to 1.25%-2.25% a year.