By 1217 GMT, the rouble was 0.9% stronger against the dollar at 57.00 , earlier hitting 56.5450, its strongest point since July 22.
"For now, the rouble is supported by fears that new sanctions from the West could paralyse dollar trading in Russia," said Alor Broker in a note.
STOCKS RECOVERY STUTTERSBCS Global Markets said geopolitical risks should prohibit any major leg up for Russian stock indexes, which pared early gains.
The rouble-based MOEX Russian index (.IMOEX) was 1.4% lower at 1,936.0 points, heading back towards February lows hit on Monday.
"In the coming days, the Russian market should trade in a narrow band - investors are likely to sit on the fence hoping for more clarity," BCS said.