The leu opened at 4.295/4.298 against the euro, compared to 4.292/4.295 at closing Monday.
Later, the leu strengthened slightly and, at around 10:15 local time, it was trading at 4.286/4.290 against the European coin.
The central bank announced Monday a leu reference of 4.2792 to the euro, slightly weaker than the previous rate of 4.271.
On the money market Tuesday morning, overnight rates dropped to 2.5%-3% a year, from 3.73%-4.23% a year.