Waitrose sales rose last week, buoyed by warm weather and the back-to-school season, although sister retailer John Lewis fared less well.

Sales increased 5.6% to £127.19m in the week to September 3. In the five weeks to September 3, sales rose 4.5% when compared with the previous year.

Waitrose worcester

Waitrose worcester

Waitrose’s new store in Worcester

The week was, on average, five degrees warmer than the same week last year and boosted sales of ice cream and salad, up 37% and 20%.

Waitrose marketing director Rupert Thomas added: “This was accompanied by demand for products in the promotional ‘Half Price Event’ - which covers a wide range of cleaning products and groceries.

“For many the start of the autumn term sparked back-to-school preparations with an upsurge in sales of snacking foods and children’s drinks.”

“For many the start of the autumn term sparked back-to-school preparations with an upsurge in sales of snacking foods and children’s drinks.”

Waitrose marketing director Rupert Thomas

John Lewis sales rose just 0.8% to £87.5m during the week, despite the back-to-school surge. That’s a 0.6% increase over the five weeks.

Fashion sales fell 0.9% while childrenswear, nursey and haberdashery was up 7.1%.

John Lewis shop trade director Maggie Porteous said: “Electrical and home technology sales were up 5.5%. Mobile phone sales continue to be a key driver, with Motorola models selling particularly well this week, and the Dyson Supersonic hairdryer is still on our bestsellers list.

“In home, sales were down 1.9%, although furniture continued its strong run-rate at 4.3%. Our own-brand ranges continue to show real strength, with House performing incredibly well on the back of a promotion, and our latest range, Design Project, also posting a strong week for sales.”

Overall, the partnership generated £214.69m, an increase of 3.6% in the fifth week and 3% in the five weeks.