Thailand's consumer confidence index dropped to 50.6 in April from 51.8 in the previous month, a survey showed on Tuesday, the lowest in eight months and the second straight monthly decline.
Consumer confidence was hurt by high energy prices, the University of the Thai Chamber of Commerce (UTCC) said when releasing the survey results on Tuesday.
Fertiliser costs have been high while agricultural product prices have been low, it added.
There was some positive sentiment emerging from stable politics and government measures to support living costs for vulnerable groups, the university said.
Confidence in the economy, jobs and future income all declined, according to a statement by the UTCC, which compiles the index.
Confidence remains below 100, with the slow economic recovery, high living costs and uncertainty over the US–Iran conflict likely to weigh on the near-term outlook.
The agriculture sector is clearly is not doing well, Thanavath Phonvichai, president of the university, said at a press conference.
Investments and consumption are slowing, he added, although tourist arrivals were picking up.