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 30 September 2025, versus 3.05 on 29 September 2025.
Sample. There are 6,390 observations overall in the daily time series shown in the chart above. The time span covered by the series stretches from September 1999 to September 2025.
History. Here's a glimpse of a few descriptive statistics we calculated on the full sample: the yield hit a trough of 0.04 percent on 6 July 2016; it reached a maximum of 3.17 on 3 September 2025; it had an average value of 1.72.
Latest values
| Date | Value - Percentage points |
|---|---|
| 2025-09-26 | 3.084 |
| 2025-09-29 | 3.05 |
| 2025-09-30 | 3.067 |
Suggestion. We categorize time series into data sets and worksheets to make your life easier. When you look below, you will discover how we arranged further information linked to the statistics provided here.
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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) |