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 stood at 3.35 percent on 25 December 2025, compared to 3.37 on the previous day.
Sample. There are 6,449 data points in the daily series displayed in the figure above. The period covered by the series is from September 1999 to December 2025.
History. Have a look at some summary statistics computed on the entire sample: the yield had a mean of 1.74 percent; it reached its lowest level of 0.04 on 6 July 2016; it reached its maximum of 3.37 on 22 December 2025.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-12-23 | 3.371 |
| 2025-12-24 | 3.371 |
| 2025-12-25 | 3.349 |
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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) |
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