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 3.80 percent on 22 June 2026, compared to 3.79 on 19 June.
Sample. There are 6,565 data points overall in the daily time series displayed in the graph above. The span of time covered by the series goes from September 1999 to June 2026.
History. Have a look at some simple statistics calculated on the full sample: the yield had a mean value of 1.77 percent; it hit a maximum of 4.04 on 19 May 2026; it recorded a bottom of 0.04 on 6 July 2016.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-06-18 | 3.737 |
| 2026-06-19 | 3.786 |
| 2026-06-22 | 3.797 |
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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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