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Data from Statistics Bureau of Japan. Forecasts by Sigmanomics Forecast Engine.
JapanJapan CPI YoY climbed to 1.9% in August 2026
Statistics Bureau of JapanMonthlyReleased August 2026
Japan CPI YoY climbed to 1.9% in August 2026, up 0.1% from July's 1.8% reading. The print came in cooler than the 2.0% consensus, a softer print than forecasters anticipated. The print is running well above the 12-month average of 1.68%. Over the past 3 months, CPI YoY averaged 1.95%, vs 1.5% in the prior 3-month window.
Latest Release
1.9
Actual
2
Consensus
1.8
Previous
Median Absolute Error
±0.15 percentage points
across last 5 releases
Last Call
Aug 2026
Predicted: 2.03
Actual: 1.9
Error: +0.13
Sigmacast Σ-direction model: consensus + ½ × mean(surprise, trailing 90d).
CORRELATED SYMBOLS— markets that historically move with this indicator
| Symbol | Direction | Correlation | Asset Class | Co-movement | Action |
|---|---|---|---|---|---|
| USD/JPY | ▼ Inverse | −0.50 | FOREX | Moves against | → View |
| EUR/JPY | ▼ Inverse | −0.45 | FOREX | Moves against | → View |
| Nikkei 225 | ▲ Direct | +0.45 | INDEX | Moves with | → View |
| GBP/JPY | ▼ Inverse | −0.40 | FOREX | Moves against | → View |
| XAU/USD | ▲ Direct | +0.30 | COMMODITIES | Moves with | → View |
Correlation based on 12-month rolling window. Click any symbol to view its Sigmanomics forecast page.
THE RELEASE
CPI YoY (Japan) was reported at 1.9% in August 2026. This missed the market consensus of 2% by 0.1%. The reading rose from the previous value of 1.8%. Trailing 12-month context per ETL data through August 2026.
THE MODEL'S TAKE
Historically, this indicator is negatively correlated with USD/JPY (Bullish JPY). A secondary relationship exists with EUR/JPY, negatively correlated (Bullish JPY).
WHAT TO WATCH NEXT
The next release is scheduled for October 1, 2026. Same-country events in the next 14 days include Exports YoY (Sep 15) and Balance of Trade (Sep 15).
Auto-generated from current model state · Refreshes on each release · Last update August 2026.
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CPI YoY - JP
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About CPI YoY — Japan
DEFINITION
Japan's CPI YoY for August held steady at 2.00%, matching July's reading and consensus exactly. The inflation rate remained unchanged from July's 2.00%, continuing a stable trend since June's 1.9%. Market focus now shifts to upcoming BOJ policy decisions amid persistent inflation at the 2% target. Updated 8/28/26
WHY THIS INDICATOR MATTERS
Inflation prints feed directly into central-bank policy expectations and real-yield calculations, and are among the most rate-sensitive releases on the calendar. The release is more useful as part of a longer-run signal than as a single-print catalyst. Released monthly.
WHAT CHANGED THIS MONTH
Latest reading (Aug 2026): actual 2 %, consensus 2 %. Prior reading (Jul 2026): 2 %. Before that (Jun 2026): 1.9 %.
WHAT'S NEXT
Sigmacast's 1-month forecast points to a higher reading versus the latest print, with the 3-month outlook reinforcing that direction. Both horizons are aligned bullish for this indicator, suggesting a consistent trend signal. Trend-driven dynamics are the primary tailwind in the current projection. This indicator correlates most strongly with USD/JPY (Bullish JPY, r=-0.50) — a useful reference for forex-focused traders.
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Economic Calendar - JP Events
| Monday, September 14, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
|---|---|---|---|---|---|---|---|
| 04:30 | JP | Capacity Utilization | 0.5 | 4.1 | -1.3 | -0.40 | Low |
| 04:30 | JP | Industrial Production MoM | -0.2 | 1.9 | 0.1 | -0.05 | Low |
| 04:30 | JP | Industrial Production YoY | 3.9 | 4.9 | 4.1 | 4.00 | Low |
| Tuesday, September 15, 2026 | Actual | Previous | Consensus | Sigmanomics Rolling-Surprise Forecast | Impact | ||
| 04:30 | JP | Tertiary Industry Index MoM | -0.2 | 0.3 | 0.30 | Low | |
| 23:50 | JP | Exports YoY | 23.2 | 18.2 | 18.60 | Medium | |
| 23:50 | JP | Balance of Trade | -634.5 | -1052.6 | -959.65 | High | |
| 23:50 | JP | Imports YoY | 27.8 | 26.3 | 26.15 | Low | |
| 23:50 | JP | Machinery Orders MoM | 9.7 | -2.8 | 1.10 | Medium | |
| 23:50 | JP | Machinery Orders YoY | 16.9 | 15.3 | 18.45 | Medium | |
| 23:50 | JP | Adjusted Trade Balance | -0.69 | -0.98 | -0.92 | Medium | |