Thailand’s consumer price inflation edged higher in September 2026, with the Consumer Price Index (CPI) rising 2.82% year-over-year, up from 2.53% in August 2026. The latest data, updated on 06 October 2026, signal a further firming of price pressures in the Thai economy on an annual basis.
Both the August and September readings are measured against the same months a year earlier, confirming that the uptick reflects a genuine year-over-year acceleration rather than short-term volatility. The move from 2.53% to 2.82% YoY suggests that inflation is continuing to build momentum as the third quarter draws to a close, a trend that will be closely watched by investors and policymakers assessing the outlook for interest rates and household purchasing power.