The bank also said in a monetary policy document that capital outflows in the fourth quarter would rise to levels comparable with those in the first quarter and forecast significant outflows for the next three years.
The outlook for Russia's economy has darkened considerably since the summer, as falling oil prices, Western sanctions over Ukraine and a slowdown in capital investment have pushed the country towards recession.
A major casualty has been the rouble, which is down some 45 percent against the dollar so far this year.
The central bank has also had to hike its main lending rate by a cumulative 5 percentage points in response to market turmoil linked to the Ukraine crisis.
The central bank said on Monday that inflation could peak at 11.5 percent early next year and that reaching its mid-term inflation target of 4 percent by the end of 2017 would require keeping monetary policy tight next year.
The bank predicted capital outflows of around $120 billion next year, $75 billion in 2016 and $55 billion in 2017.