30-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily
This series is part of the dataset: Japan constant-maturity government-bond yield curve (Ministry of Finance)
Download Full Dataset (.xlsx)Latest updates. In Japan, the 30-year government-bond yield was 3.07 percent on 24 September 2025, versus 3.09 on 22 September.
Sample. There are 6,386 data points overall in the daily time series presented in the figure above. The series covers the span of time stretching from September 1999 to September 2025.
History. Have a look at some descriptive statistics computed on the whole sample: the yield had an average value of 1.72 percent; it reached its highest level of 3.17 on 3 September 2025; it reached a trough of 0.04 on 6 July 2016.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-19 | 3.072 |
| 2025-09-22 | 3.094 |
| 2025-09-24 | 3.074 |
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Series Metadata
| Field | Value |
|---|---|
| Description | 30-year yield; Japan government bond yield curve |
| Country | Japan |
| Economic concept | Interest rate |
| Data type | Semiannually compounded interest rate |
| Deflation method | Not applicable |
| Seasonally adjusted | No |
| Rescaling | None |
| Frequency | Daily |
| Unit | Percentage points |
| Source | Japan Ministry of Finance |
| Source type | National source |
| Data licence | Public Data Licence |
| Measure type | Interpolated level (constant maturity; cubic spline) |
Series in the same data set
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