Heatwave set to drive second supermarket sales bump of 2026

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Total till sales at UK supermarkets rose by 4.6% year on year in the four weeks ending 13 June, ‘primarily driven by’ the heatwave in the last two weeks of May

Supermarkets can expect another boost to sales from week’s extreme high temperatures, after May’s heatwave drove an uplift, according to analytics company NIQ.

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