Pound Sterling Declines as Fed Rate Hike Looms and UK Inflation Data Tempers BoE Bets

The British pound weakened on Wednesday, pressured by broad-based U.S. dollar strength ahead of an expected Federal Reserve rate hike and UK inflation data that gave the Bank of England little reason to adopt a more hawkish stance. The GBP/USD pair traded down at 1.3474 as investors positioned for diverging monetary policy paths between the U.S. and the UK.

Dollar Strengthens on Fed Expectations

The primary driver for currency markets was the anticipation of the Federal Reserve's policy decision. According to Investing.com, markets have almost fully priced in a 25 basis point interest rate increase, which would take the U.S. benchmark rate to 4%.

This expectation has provided significant support for the dollar. Analysts noted that investors are reluctant to bet against the greenback, with attention now turning to the Fed Chair's press conference for signals on future policy. Francesco Pesole, an FX strategist at ING, stated that "any openness to further tightening can support the dollar by reinforcing policy credibility."

UK Inflation Fails to Spark Hawkish Shift

Domestically, new data showed the UK's headline Consumer Price Index (CPI) accelerated to 3.1% in August, up from 2.9% in the prior month. However, the details of the report tempered any hawkish reaction that might have supported the pound.

The rise was largely attributed to a widely anticipated 7% monthly increase in fuel costs. Analysts pointed to softer underlying figures as a reason for the Bank of England (BoE) to remain patient. According to ING, key details included:

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• Relatively soft food inflation at 1.1% year-over-year.
• Contained core services inflation, which stood at 3.4%.

An ING analyst noted, "There’s nothing in today’s data that suggests the Bank of England needs to turn more hawkish." The bank's forecast sees UK inflation peaking near 3.7% early next year but expects the BoE to hold interest rates steady into 2027, barring a major spike in energy prices.

Market Outlook

The combination of a strengthening dollar and a steady BoE is weighing on sterling's outlook. The divergence in central bank policy is becoming more pronounced, with analysts at ING suggesting the euro could also strengthen against the pound, targeting a move above 0.860 in the EUR/GBP pair.

The key risk factor remains energy prices. A sustained rise in oil could challenge the view that inflation will ease, potentially forcing central banks to reconsider their policy stances. For now, however, the focus remains squarely on the Federal Reserve's impending announcement and its implications for global currency markets.