The leu closed at 4.389/4.391 to the euro, compared with 4.347/4.35 to the euro at Thursday close.
It had opened at 4.355/4.356 units, but the local currency was under pressure throughout the session, as risk aversion on the regional markets increased.
The central bank set the leu’s exchange rate at 4.3794 per euro, a seven-week low.
On the money market, overnight rates rose to 3.5%-4% a year, from 3%-3.5% a year Thursday.