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30-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily

Latest updates. In Japan, the 30-year government-bond yield was 4.05 percent on 17 September 2026, versus 4.08 on 16 September 2026.

Sample. There are 6,626 records in the daily time series shown in the graph above. The series covers the time range extending from September 1999 to September 2026.

History. Here's a glimpse of a few descriptive statistics computed on the whole sample: the yield reached its maximum of 4.13 percent on 1 September 2026; it reached a minimum of 0.04 on 6 July 2016; it was equal on average to 1.79.

Latest values

Date Value - Percentage points
2026-09-15 4.10600
2026-09-16 4.07500
2026-09-17 4.04700

Nugget of wisdom. 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.

Not for investment purposes. Time series and other data available on this web site are not suitable for investment purposes or as a basis for financial-decision making. Users should seek expert advice and perform independent analysis before taking any financial risk.

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

Discover the other time series included in this data set.

Nominal yields

Series Name Observations Start Date End Date
1-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 12655 1974-09-24 2026-09-17
2-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 12942 1974-09-24 2026-09-17
3-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13227 1974-09-24 2026-09-17
4-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
5-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
6-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
7-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
8-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
9-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 13303 1974-09-24 2026-09-17
10-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 9942 1986-07-05 2026-09-17
15-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 8601 1991-08-30 2026-09-17
20-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 9829 1986-12-01 2026-09-17
25-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 5508 2004-03-22 2026-09-17
30-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 6626 1999-09-02 2026-09-17
40-year yield on government bonds (percentage points; constant maturity; nominal) - Japan - Ministry of Finance - Daily 4614 2007-11-06 2026-09-17