Annual headline consumer prices rose for a third straight month in June, lifted by higher food prices, the Commerce Ministry said on Friday.
The headline CPI index increased 0.38% in June from a year earlier after rising 0.46% in May and 0.07% in April, when it had its first annual gain in 15 months. A Reuters poll had forecast a rise of 0.50% in June.
Inflation in June rose 0.03% from May.
An increase in June's CPI was pushed by a rise in the food and beverage sector by 2.8% but the non-food sector declined by 0.94%.
June's annual core inflation rate, which strips out raw food and energy prices, was 0.80%, the same as forecast in the poll and slightly above May's 0.78%.
However, the headline inflation for the first half of 2016 was still a 0.09% contraction compared to the same period of 2015.
Inflation has been held down by government price controls, subsidies and sluggish consumption at a time when household debt remains high.
Low inflation is one reason the Bank of Thailand has left its policy interest rate unchanged at 1.50% since April 2015. The rate is 25 basis points above the record low during the global financial crisis. The central bank next reviews monetary policy on Aug 3.