Transport costs recorded the highest price decline of 1.67% as petrol prices decreased twice over the period.
Two key groups that saw a reduction in the price index were the housing, electricity, water, fuel, and building materials prices, along with the restaurant and catering services.
The growth rate of the price of other goods was not significant enough to offset the declines.
This month, prices for gold and the US dollar saw opposite trends, as gold increased by 1.15%, while the greenback declined 0.05% over the previous month.
In November, the city raked in US$1.28 billion from exports, up 4.4% month-on-month and 28.5% against the same period last year. The figure for the first 11 months of 2018 stood at nearly US$13 billion, a rise of 20.9% year-on-year.
Meanwhile, imports reached US$2.86 billion, increasing 7.1 percent month-on-month and 14.1% over the previous year. In the first 11 months, Hanoi imported goods worth more than US$28 billion, up 8%.
The city welcomed nearly 4 million visitors in the first 11 months of 2018, up 18.7 percent year-on-year.