The centre said overall confidence in the economy during the month fell to 63.2, from 65 points. Confidence in job opportunities dropped to 66.7, from 68.2 points and confidence in people's future income went down from 91.8 to 90.3 points.
All consumer confidence indices were down for the ninth month in a row and hit a two-year-low, the centre said.
An index below 100 points indicates low consumer confidence.
Negative factors that eroded confidence included concerns about political turmoil, the Fiscal Policy Office slashing its growth projection for 2013 from 3.7% to only 3%, the decline of 4.1% in November exports and the baht's exchange rate, said the centre.
The stable domestic retail price of diesel was the only positive factor to boost consumers’ confidence over the month, it added.