The United Kingdom’s Retail Price Index (RPI) recorded a month-on-month change of 0.6% in August 2026, unchanged from July’s 0.6% reading. According to data updated on 16 September 2026, price growth, as measured by RPI, showed no acceleration or deceleration between the two months.
On a month-over-month basis, the “Actual” figure for August represents the change compared with July 2026, while the “Previous” figure reflects July’s change versus June 2026. With both months registering the same 0.6% increase, the data point to a period of short-term stability in retail price movements across the UK economy. Investors and policymakers may interpret the flat reading as a sign that, at least over the summer, price pressures neither intensified nor eased on a monthly basis.