Welsh onion (negi)
Average retail price
- Cheapest surveyed city
- ¥684 Aomori
- Priciest surveyed city
- ¥1,201 Miyazaki
Retail price survey conducted by the Statistics Bureau of Japan. This is a survey average, not a shop price — actual prices vary by store. 総務省統計局 小売物価統計調査 · Surveyed items and specifications
Key facts
Welsh onion (negi) costs ¥903 per kg in Japan as of August 2026 — the unweighted average of 81 surveyed cities, down 4.8% from a year earlier. Measured as an index, the official CPI for welsh onion (negi) reads 128.2 (2020 = 100) in August 2026, down 7.2% year on year and up 15.3% over five years.
Welsh onion (negi) sits in the food group of Japan's CPI basket, with 680 monthly observations from January 1970 to August 2026. The series peaked at 198.1 in March 1994 and bottomed at 8.8 in March 1972; the latest reading is -35.3% against that peak. Against ten years ago it is +24.6%.
Annual average index by year
| Year | Index | YoY % | Months |
|---|---|---|---|
| 2015 | 90.4 | +6.7% | 12 |
| 2016 | 100.6 | +11.3% | 12 |
| 2017 | 97.6 | -3.0% | 12 |
| 2018 | 109.1 | +11.8% | 12 |
| 2019 | 95.8 | -12.2% | 12 |
| 2020 | 103.5 | +8.0% | 12 |
| 2021 | 106.6 | +3.0% | 12 |
| 2022 | 103.3 | -3.1% | 12 |
| 2023 | 113.8 | +10.2% | 12 |
| 2024 | 117.7 | +3.4% | 12 |
| 2025 | 132.6 | +12.7% | 12 |
| 2026 | 116.5 | -12.1% | 8 |
Average of the monthly index values in each year (2020 = 100). Blank months are excluded.
Average retail price by month
| 2026-08 | ¥903 |
|---|---|
| 2026-07 | ¥880 |
| 2026-06 | ¥798 |
| 2026-05 | ¥716 |
| 2026-04 | ¥653 |
| 2026-03 | ¥777 |
| 2026-02 | ¥829 |
| 2026-01 | ¥939 |
| 2025-12 | ¥883 |
| 2025-11 | ¥885 |
| 2025-10 | ¥934 |
| 2025-09 | ¥998 |
| 2025-08 | ¥948 |
Frequently asked questions
- How much does welsh onion (negi) cost in Japan?
- ¥903 per kg, as of August 2026 — the unweighted average of 81 surveyed cities in the government's retail price survey.
- Which Japanese city has the cheapest welsh onion (negi)?
- Among the surveyed cities in August 2026, Aomori was cheapest at ¥684 and Miyazaki the most expensive at ¥1,201.
- How much have welsh onion (negi) prices changed in Japan over the past year?
- As of August 2026, -7.2% year on year, measured by Japan's official consumer price index (2020 = 100).
- How much have welsh onion (negi) prices changed in Japan over the past five years?
- +15.3% compared with the same month five years earlier. The index now reads 128.2.
- When were welsh onion (negi) prices in Japan at their highest?
- The series peaked at 198.1 in March 1994. The latest reading is -35.3% against that peak.
- What is the difference between the index and the yen price?
- This page carries two kinds of number. The index (2020 = 100) measures percentage change over time and is not a yen amount; the yen figure is an actual average retail price from the government's retail price survey. Source: 総務省統計局 消費者物価指数 (e-Stat table 0003427113, nationwide, monthly).