Piyush Mathur, Nielsen's regional managing director MENA, said that while confidence levels in the UAE were rising, consumers were changing their spending habits as a result of the credit crunch.
They showed "more discretion", especially when buying new clothes, and they had cut down on their grocery shopping, he added.
The global average also rose 9 points since April.
In the latest round of the survey, Vietnam posted the largest consumer confidence increase in the second half of 2009 compared to first half, up 24 points from 85 to 109 index points, followed by Hong Kong (+23 pointsand Chile (+22 points).
India, Indonesia and Norway continued to top the global rankings for the most confident nations, while the most pessimistic nations were Latvia and Japan.
Consumer confidence rose in 45 out of the 52 countries compared to six months ago.
The Nielsen index was based on the views of more than 30,000 internet users across 54 countries.