Retail sales volumes in Great Britain fell 0.4% in September after August’s increase, although the third quarter recorded overall growth, according to official figures. The Office for National Statistics reported a 0.7% quarterly rise, highlighting a stronger three-month trend than the final month alone suggested. The Office for National Statistics estimated a 0.7% rise in sales volumes during July to September compared with the previous three months, illustrating the contrast between monthly trading volatility and the broader trend.
The Office for National Statistics revised August’s monthly rise from 0.5% to 0.7% and July’s fall from 0.5% to 0.4%. The September decline therefore followed a relatively strong August, rather than representing three consecutive months of shrinking volumes. Compared with September 2025, volumes were 0.8% higher.
Supermarket sales weakened in September following increases earlier in the summer. Online clothing retailers also reported poor demand for autumn and winter ranges during unusually warm weather. The Met Office classified September 2026 as the joint fourth warmest September on record, a condition that may have affected when shoppers considered seasonal clothing necessary.
Non-food store sales volumes fell 0.4% over the month, with clothing, footwear, sports equipment and household goods among the weaker categories. Retailers pointed to reduced footfall and cautious spending, while hardware stores also experienced lower volumes. These comments provide context but are not a controlled estimate of how much each factor contributed to the headline change.
Automotive fuel sales were an exception, rising during September despite fuel prices continuing to increase. The ONS suggested that some drivers had partially filled their tanks during the previous month as prices rose, contributing to the pattern of subsequent purchases. The quarterly comparison benefited from a gradual recovery in fuel volumes after weakness in April.
Online sales values fell 0.4% between August and September, but remained 6.8% higher than a year earlier. The proportion of total retail sales conducted online edged down from 28.9% to 28.8%. Those figures refer to spending values and shares rather than the separate volume measure used for the headline retail sales release.
For retail operators, the mix of weather effects, discretionary purchasing and changing channel demand complicates stock decisions. A delayed autumn clothing season may create pressure on cash flow and discounting if inventory was purchased well in advance. Supermarket and convenience operators face a different challenge in balancing food availability, promotions and consumers’ sensitivity to prices.
The quarterly rise offers a reminder that one month’s decline does not necessarily represent a persistent contraction. The three-month comparison smooths some of the volatility created by promotions, weather and changes in fuel purchasing. Nonetheless, it is not evidence that every segment enjoyed stronger trading conditions: the ONS recorded different outcomes across store types.
Retail volumes and retail values should also be kept separate. A shopper can spend more money while purchasing fewer goods when prices rise, and retailers can report growth in revenue despite softer units sold. The official volume measure is designed to adjust for price changes, making it useful for assessing underlying demand.
Seasonal comparisons are especially important when autumn merchandise arrives during warm weather. A retailer may sell fewer coats in September and recover some sales in October, but the timing shift can still create storage costs or increase the likelihood of discounting. Grocery businesses may experience different patterns linked to promotions and food inflation. These differences help explain why an aggregate sales measure can obscure divergent trading conditions.
The release precedes the Chancellor’s Budget at a time when consumer confidence is under pressure. Retail businesses will be looking for signs that household disposable income and purchase intentions stabilise before committing to winter stock and staffing plans. October and November sales figures will offer better evidence of whether the September setback was temporary or the start of more sustained weakness.
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