Keeping an eye on the weather can enable retailers to select and determine stock levels of certain products to suit the changes in climate for up to 14 months in advance.

After a weekend of hot and sunny weather,supply operations director at Safeway, Mark Aylwin, said: “By acting on Met office predictions we were able to get the best, most appropriate items on our shelves giving our customers some fantastic offers.”

Sales of chicken breasts and drumsticks jumped at Safeway as shoppers came in to make the most of the barbecue weather. Eight times as many burgers were sold compared to a normal weekend, Safeway said.

The supermarket also sold seven times as many iceberg lettuces and three times as many punnets of strawberries as a regular weekend.

While sales of fly and wasp killer increased fivefold.