August's record breaking figure represents a rise of 9.5% on the same month a year ago.
It means that DXB has handled 52.2 million (+12.4%) in the year to date compared to 46.4 million accommodated during the first eight months last year.
According to operator, Dubai Airports, the "bumper traffic" was boosted by the seasonal rush of travellers, including inbound traffic of residents returning for the start of the academic year, as well as increase in flight frequency and launch of new services by Emirates, flydubai and other airlines.
The Indian subcontinent topped the list of regions with highest growth in passenger numbers (+143,970 passengers) followed by Western Europe (+129,950) and the GCC (+111,637).
Eastern Europe was the fastest-expanding market in terms of percentage growth (+67.9%), followed by North America (24.8%) which benefitted from the increase in Emirates’ capacity with bigger aircraft to Chicago, Dallas, Houston, and San Francisco, and the added daily flights to both New York and Seattle,
Russia & the CIS (12.9%), and the Middle East (11.6%), spurred mainly by launch of services to new destinations and additional capacities on Emirates and flydubai among other carriers.
Paul Griffiths, CEO of Dubai Airports said: “We are very pleased with the traffic so far this year, particularly the record-breaking numbers in August.
"As we mark the 55th anniversary of DXB this week we cannot help but look back at our humble beginnings, and how, thanks to the vision of the leadership, a tiny airport rose rapidly to become the world’s number one hub for international passengers.
"DXB has welcomed over 700 million passengers in its five-and-a-half decade history, clocking an unparalleled average growth rate of over 15%. Our mission is to ensure that the success story of Dubai’s aviation sector continues over the coming decades.”