Japan Measures of Underlying Inflation: September 2025

Tue, Oct 28, 2025 · 2:00 AM ET Next release · Sep 22, 1:00 AM ET

Japan’s measures of underlying inflation in September:

  • Trimmed mean CPI inflation was up 0.1 ppt to 2.1% YoY (highest since June).
  • Weighted median CPI inflation was up 0.4 ppts to 1.4% YoY (highest since June).
  • The mode CPI inflation fell -0.2 ppts to 1.7% YoY (the lowest since July).