August’s inflation reports made a further European Central Bank rate increase look substantially more likely. Germany’s national inflation rate rose to 2.9% from 2.8%, while euro-area headline inflation accelerated to 3.3% from 2.9%. The catch is crucial: the euro-area increase was driven largely by energy, while core inflation slowed.
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That mix explains why markets can price a September ECB hike without delivering a decisive rally in EUR/USD. A more hawkish Federal Reserve outlook after Chair Kevin Warsh’s Jackson Hole remarks has simultaneously supported the US dollar.
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German, French and Spanish data pointed to stronger headline inflation
Regional German readings had signalled an upside risk ahead of the national release. Bavaria, Saxony and North Rhine-Westphalia each reported annual CPI inflation of 2.9% in August, while Baden-Württemberg reported 2.6%.
8 Germany’s national preliminary inflation reading subsequently came in at 2.9%, up from 2.8% in July.
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The broader European backdrop was also firmer at the headline level. France’s inflation rate rose to 2.7%, while Spain’s reached 4.5%.
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20 These results supported the view that the energy shock was affecting price indexes across major euro-area economies.
Still, the data do not establish a broad-based reacceleration in domestic inflation. In Germany, core inflation was unchanged at 2.4%, with lower services and food inflation offsetting higher energy and core-goods prices.
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Eurozone inflation reached 3.3%, but core pressure eased
Eurostat’s flash estimate showed euro-area annual inflation at 3.3% in August, matching expectations and rising from 2.9% in July. It was the highest reading since September 2023.
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Energy was the dominant source of the rise: annual energy inflation accelerated to 14.3% from 10.3%. Meanwhile, core inflation—which excludes energy, food, alcohol and tobacco—eased to 2.4% from 2.5%.
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This distinction matters for policy:
- Headline inflation above target makes it difficult for the ECB to dismiss the price shock, particularly while energy costs remain elevated.
- Easing core inflation gives policymakers a reason to avoid treating the August headline number as proof that persistent, internally generated inflation is accelerating.
In other words, the release supports a near-term hike but leaves the path beyond that meeting more dependent on energy markets and the next core and services readings.
Why a 25bp ECB move became the central expectation
Before the full euro-area release, markets had already assigned a 97% probability to an ECB increase at the September meeting, following firmer French and Spanish figures.
25 After the 3.3% euro-area print, reporting indicated that markets expected a 25-basis-point increase from the 2.25% deposit rate to 2.50% at the ECB’s September 10 meeting.
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The inflation data therefore did not create the policy expectation from scratch; it reinforced an already strong case. The ECB’s harder decision is likely to be how it characterises the next step. A continued rise in core or services inflation would support expectations for more tightening. If energy remains the principal driver while core measures cool, the case for a cautious, potentially one-off response is stronger.
Why EUR/USD has not broken higher
Higher expected ECB rates would ordinarily support the euro through a larger expected return on euro-denominated assets. But exchange rates reflect the relative outlook for both sides of the pair.
EUR/USD was trading around $1.16 after falling 0.57% to $1.1583 following Warsh’s Jackson Hole remarks.
1 Warsh said the Fed would “have work to do” if it lacked confidence that inflation was returning to its 2% objective.
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Fed funds futures reacted quickly: one LSEG reading put the probability of a September rate hike at 57%, up from 35% before the speech.
30 Other market measures differed in their precise probabilities, but pointed in the same direction: investors had markedly increased the chance of a September Fed move.
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That repricing strengthened the dollar and offset much of the euro support from higher ECB-hike expectations. The result was a more balanced EUR/USD market around $1.16 rather than a clean, ECB-led advance.
What could change the ECB and Fed outlooks
Euro-area inflation composition
The headline 3.3% figure alone is not the full policy signal. Investors will watch whether future data show energy costs flowing into services, wages and other core categories. Persistent core inflation would add weight to the case for a more restrictive ECB path; continued core disinflation would argue for caution after a September move.
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US inflation and labour-market data
Warsh’s remarks shifted the Fed debate toward whether inflation data justify another increase. The next US inflation and employment releases therefore have unusual importance: resilient hiring or firmer wage growth could preserve higher hike odds and support the dollar, while softer data could reduce the perceived need for near-term Fed tightening.
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Other central-bank decisions
The Bank of Canada was widely expected to hold rates, with one market assessment putting the probability of a hike at roughly 1%.
37 Such decisions are more likely to affect their domestic currencies directly than to reset EUR/USD, unless they materially alter global risk appetite or expectations for policy across major economies.
The practical takeaway for EUR/USD
The inflation surprise is not simply a bullish-euro story. It has made a September ECB hike highly likely, but the euro area’s inflation acceleration is heavily energy-led and core inflation has softened. At the same time, the Fed’s post-Jackson Hole repricing has made US rate policy more hawkish in market expectations.
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For EUR/USD, that leaves the relative data contest intact. Evidence of sustained euro-area core inflation would strengthen the ECB side of the equation. Strong US inflation or labour data would strengthen the Fed and the dollar side. Until one of those forces clearly dominates, trading near $1.16 is consistent with markets pricing tighter policy on both sides of the Atlantic.