The British pound is on pace for its largest monthly decline against the U.S. dollar since July 2025, as a combination of fading interest rate support and renewed political uncertainty weighs on the currency. Sterling has fallen 2.2% in June, marking its steepest monthly drop since a 3.8% decline last July.
On Thursday, the pound traded at $1.3161, down 0.1% on the day and hovering near its weakest level since November. The decline comes in a week that marks the 10th anniversary of the Brexit referendum and follows the resignation of Labour Prime Minister Keir Starmer, adding a fresh layer of uncertainty for investors already reassessing the UK monetary policy outlook.
Oil Price Drop Eases Inflation Concerns
A key factor behind the pound's weakness is the sharp decline in crude oil prices. The suspension of hostilities between the United States and Iran has allowed energy shipments to resume through the Strait of Hormuz, driving oil prices lower. This has eased fears of a renewed inflation spike in the UK, reducing pressure on the Bank of England to raise interest rates aggressively.
Market pricing now suggests traders expect only one rate hike from the BoE this year. Higher interest rates typically support a currency by increasing returns on sterling-denominated assets, but with energy prices falling and inflation concerns softening, that tailwind has diminished. The reduced prospect of further tightening has removed a key pillar of support for the pound at a time when political developments are also clouding the outlook.
Starmer's Resignation Adds Political Risk
The political landscape has become another point of concern for investors. Starmer resigned on Monday following a sharp decline in his popularity, making him the latest in a series of UK leaders since the 2016 Brexit vote. His departure means Britain is set to have its seventh prime minister in the decade since the referendum.
Attention has shifted to the leadership race, with former Greater Manchester mayor Andy Burnham emerging as the frontrunner after winning a local election and taking up a seat in parliament this week. Investors are closely watching whether Burnham would retain Finance Minister Rachel Reeves, as the continuity of fiscal policy is seen as crucial for market confidence. For more on the leadership transition, see UK Leadership Shift: Burnham's Fiscal Plans and Chancellor Pick in Focus as Starmer Steps Down.
Market Implications
The pound is now under pressure from both sides. The fading prospect of BoE rate increases has weakened one source of support, while political change has raised fresh questions over fiscal leadership and investor confidence in the UK policy outlook. The combination has left sterling vulnerable, with traders pricing in a cautious stance.
For broader context on how these dynamics are affecting UK equities, see FTSE 100 Outlook: Three Key Drivers Shaping the Footsie This Week. Meanwhile, the dollar's strength is also impacting other asset classes, as highlighted in Silver Plunges to 6-Month Low as Dollar Strength and Hawkish Fed Reshape Metals Outlook.
As the leadership contest unfolds, the market will be watching for signals on fiscal discipline and the direction of monetary policy. Any clarity on the new government's economic agenda could provide a catalyst for sterling, but for now, the currency remains under pressure.
This article is for informational purposes only and does not constitute financial advice.
