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 3.64 percent on 31 March 2026, compared to 3.70 on 30 March.
Sample. The daily time series displayed in the chart has 6,510 observations. The time range covered by the series extends from September 1999 to March 2026.
History. Take a look at a few statistics we calculated on the full sample: the yield had an average value of 1.75 percent; it reached its maximum of 3.77 on 20 January 2026; it reached a minimum of 0.04 on 6 July 2016.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2026-03-27 | 3.629 |
| 2026-03-30 | 3.698 |
| 2026-03-31 | 3.64 |
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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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