South Korea’s consumer price dynamics showed a modest acceleration in September 2026, with the month‑over‑month Consumer Price Index (CPI) rising 0.3%, up from a 0.2% increase in August 2026. The latest data, updated on 01 October 2026, indicate a slight firming in price pressures compared with the previous month.
On a month‑over‑month basis, the “actual” 0.3% reading for September reflects how prices evolved versus August, while the “previous” 0.2% figure measures the change in August relative to July. The step‑up in the headline CPI suggests that inflation momentum picked up marginally as the third quarter drew to a close, a development closely watched by markets assessing the trajectory of consumer prices in South Korea.