FX.co ★ Japan’s Consumer Prices Stall in September, Signaling Flat Inflation Momentum

Japan’s national Consumer Price Index (CPI) registered 0.0% month-on-month in September 2026, down from 0.1% in the previous month, indicating that price growth effectively stalled. The latest data, updated on 22 October 2026, show that after a marginal increase in August, consumer prices neither rose nor fell in September on a seasonally comparable basis.

The month-on-month reading compares price changes in September with those in August, while the “previous” figure reflects August’s change versus July. The shift from 0.1% to 0.0% suggests a pause in short-term inflationary pressure, which may influence expectations around monetary policy and consumer demand dynamics in the coming months. Investors and policymakers will be watching subsequent releases closely to see whether this marks a temporary stabilization or the start of a broader cooling in Japan’s price environment.