Thailand's annual consumer inflation rate fell to its lowest in 35 months in January, the Commerce Ministry said on Monday.
The figure compared with a forecast fall of 0.82% for January in a Reuters poll.
The core CPI increased 0.52% year-on-year in January, versus a forecast rise of 0.57%.
The decline in January was the fourth in as many months and was driven by government energy subsidies, lower food prices, and a high base effect from last year, the ministry said.
It was the ninth straight month that headline CPI was below the central bank's target range of 1% to 3%.