The US dollar exchange rate on the international Forex market exceeded 80 rubles for the first time in four months, according to ICE data.
The dollar gained 3.98% in the latest trading session.
The last time the US currency traded above the 80-ruble mark was on April 3.
Russia's Central Bank had earlier set the official dollar rate at 77.2 rubles and the euro at 88 rubles for July 6.
