French consumer price inflation accelerated in July, defying expectations and reinforcing a broader pattern of persistent price pressures across the eurozone.

According to preliminary data, France's national Consumer Price Index (CPI) rose 2.1% year-on-year in July, above the 1.8% expected by economists and up from 1.8% in June. The flash estimate for the Harmonised Index of Consumer Prices (HICP)—the measure used by the European Central Bank for cross-country comparisons—came in at 2.4% year-on-year, surpassing the 2.1% forecast and climbing from 2.0% in the prior month.

The increase in headline inflation was driven primarily by a re-acceleration in services prices and energy costs. Within the services component, notable price increases were recorded for accommodation services and communication services. Energy prices rose on the back of higher costs for gas and petroleum products.

On a monthly basis, headline inflation posted a 0.6% increase in July, a marked rebound from the -0.3% reading recorded in June. The uptick comes despite hopes that the ceasefire agreement reached between the United States and Iran at the end of June might deliver some temporary relief in energy markets. That relief has not materialized in the data, either in France or elsewhere across the region.

Preliminary inflation estimates from Spain and Germany have also pointed to stronger price pressures in July, further underscoring the regional trend.

The persistently elevated readings will increase pressure on the European Central Bank to raise interest rates further at its September policy meeting. The ECB targets inflation at 2% over the medium term, and policymakers have repeatedly flagged services inflation as a critical gauge of underlying domestic price pressures, since it tends to reflect wage dynamics and local demand more closely than the volatile food and energy components that dominate headline figures.

A breakdown of the French data shows food prices holding steady at a 0.9% year-on-year increase in July, unchanged from the previous month. Energy prices climbed to 12.4%, up from 11.0% in June. Services inflation also moved higher, reaching 2.3% in July compared with 1.9% in June.

France is the eurozone's second-largest economy, and its inflation figures are closely watched as an indicator of broader price trends across the currency bloc.