Overall nationwide inflation was unchanged at -0.9 percent on year, again in line with forecasts, but up 0.3 percent on month.
Among the key components, prices for education plunged 13.0 percent on year thanks to a decline in tuition costs. This was followed by furniture (-4.4 percent), recreation (-1.5 percent), clothing (-0.8 percent) and food (-0.7 percent). Fuel prices rose an annual 2.8 percent.
Overall inflation for Tokyo - considered a leading indicator for the nationwide trend, showed a 0.6 percent decline on year in September. Analysts had been expecting a 0.9 percent decline following the 1.0 percent contraction in August. It was up 0.3 percent on month.
Core inflation in Tokyo came in at -1.0 percent, matching forecasts after shedding 1.1 percent in August.
Among the key components, prices for education shed 6.6 percent on year, followed by furniture (-4.1 percent), recreation (-1.3 percent), housing (-1.0 percent) and communications (-0.5 percent. Fuel prices were up 4.2 percent on year.
The persisting deflation figures to be a main topic of conversation once again in next week's Bank of Japan monetary policy board meeting. Interest rates are already at a record low 0.10 percent, and now the bank is said to be pondering other measures, up to and possible including quantitative easing.