Euro zone inflation surged back above 3% in August as higher energy costs pushed headline price growth to 3.3%, up from 2.9% in July, according to flash estimates from Eurostat. The increase was widely anticipated and clears the path for the European Central Bank to raise its deposit rate to 2.5% at next week's governing council meeting, a move markets have fully priced in.
Energy costs drive the headline surge
The acceleration came almost entirely from oil and gas prices. Brent crude has climbed steadily since early summer, while Dutch TTF natural gas futures have risen on supply concerns linked to the ongoing conflict between the United States and Iran. Energy's contribution to the headline rate outweighed a continued moderation in other components, leaving the ECB with a familiar dilemma: headline inflation well above the 2% target while underlying pressures show signs of fading.
The deposit rate currently sits at 2.25% after a quarter-point increase in June. Next week's expected move would bring it to 2.5%, the highest level since the tightening cycle began in 2022. ECB board member Isabel Schnabel told Bloomberg last week that borrowing costs must rise further to bring price gains back to target, a view echoed by several other policymakers in recent public appearances.
Core inflation eases, services slow
Beneath the headline figure, the picture looks different. Core inflation, which strips out volatile food and fuel, fell to 2.4% from 2.5% in July. Services inflation, the largest single component of the consumer basket and the one policymakers watch most closely for evidence of second-round effects, decelerated to 3% from 3.3%. Goods inflation also softened.
This divergence, headline rising while core falls, is the central analytical puzzle for the governing council. It suggests the energy shock is not yet feeding broadly into wage and price setting, a point David Powell, senior euro-area economist at Bloomberg Economics, emphasised. "The sharp rise in headline inflation contrasts with a drop in underlying measures of price increases," he said. "That divergence supports our view that the ECB is unlikely to tighten by as much as financial markets are currently pricing in."
Markets ahead of the ECB
Money markets currently imply two further quarter-point hikes over the next 12 months, taking the deposit rate to 3%. The assumption is that persistently high energy costs will eventually seep into broader price formation, particularly if the Iran conflict continues to disrupt supply. Some economists argue the euro area economy has proven surprisingly resilient to the combination of war, tariffs and higher rates, giving the ECB room to do more.
The Federal Reserve faces a similar backdrop, with US inflation data also showing energy-driven upside risks. A synchronised global tightening cycle would reinforce market expectations for further ECB moves. Yet the governing council's own guidance has stressed data dependence and meeting-by-meeting decisions, leaving plenty of room for a pause after next week.
Geopolitical backdrop complicates forecasting
The war between the United States and Iran shows no sign of resolution, keeping a risk premium embedded in oil and gas prices. European gas storage levels are adequate for now, but a cold winter or further escalation could drive prices sharply higher. The ECB's next set of macroeconomic projections, due in December, will incorporate updated energy assumptions and may clarify whether policymakers see the current spike as transient or persistent.
Labour market dynamics add another layer. Unemployment remains low by historical standards, but vacancy rates have fallen and wage growth indicators have moderated in recent months. Powell argues a cooling labour market should limit the pass-through of commodity prices into broader inflation, though he acknowledges a more persistent energy shock could put a December hike back on the table.
Ireland feels the heat
The energy impact is not uniform across the bloc. Irish inflation, measured by the Harmonised Index of Consumer Prices, reached 3.4% in August, the highest level in three months. Ireland's high exposure to gas-fired electricity generation and its open economy make it particularly sensitive to wholesale energy moves. The flash estimate underscores how the same shock hits member states differently, a recurring headache for a single monetary policy.
A familiar tension returns
The ECB has faced this tension before. In 2011, the bank raised rates twice on the back of an oil spike, only to reverse course within months as the euro area slipped back into recession. The memory of that episode lingers in Frankfurt. Policymakers now have better tools to distinguish supply-driven from demand-driven inflation, but the risk of misreading the signals remains. Next week's decision is the easy part; the path after that is where the real debate lies.
People mentioned
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David Powell
Organisations
European Central Bank · Eurostat · Bloomberg Economics
