Residents accounted for 82.3% of total arrivals at accommodation establishments in August, while foreigners made up for the reminder 17.7%.
The large majority of foreign visitors (94.9%) came from Europe, the data showed.
Romanian tourist departures abroad rose 1.1% on the year in August.
In January to August, tourist arrivals increased by 15.6% on the year, while overnight accommodations were up 13.1%.