The leu opened at 4.33/4.332 against the euro, compared to 4.3225/4.324 at closing the day before.
Within the first hour, the leu continued to weaken and, at around 10:00 local time (GMT0800) it was trading at 4.3355/4.3385 to the euro.
The central bank set the leu’s reference rate at 4.3219 per euro Wednesday.
On the money market, overnight rates stood at 3.5%-4% a year.