The leu opened at 4.356/4.358 against the euro, compared to 4.346/4.349 at closing the day before.
Within the first hour, the leu continued to weaken and, at around 10:30 local time, it was trading at 4.358/4.362 against the euro.
The central bank computed Wednesday a leu-to-euro reference of 4.346 units, the weakest level seen by the leu over the past two weeks.
On the money market, overnight rates dipped to 5%-5.5% a year, from 5.1%-5.5% a year previously.