July 3 (Reuters) - Russia's finance ministry said on Wednesday it would increase its purchases of foreign currency and gold in the month ahead, a move that will reduce the state's overall forex sales as the central bank makes interventions of its own.

The finance ministry said its purchases of foreign currencies and gold for the period from July 5 to Aug. 6 would amount to the equivalent of 123.8 billion roubles ($1.41 billion), or 5.4 billion roubles per day.

The Russian state's overall daily FX sales will drop to 3 billion roubles from 8.1 billion roubles, due to the central bank's sales.

In the previous period, between June 7 and July 4, the ministry had planned to buy foreign currency worth 71.1 billion roubles, or 3.7 billion roubles per day. ($1 = 87.5000 roubles) (Reporting by Darya Korsunskaya and Alexander Marrow Editing by Peter Graff)