Fashion retailer Next has warned that it will have to lower its profits guidance for this year if the Indian summer continues throughout October.
September is an important month for the industry but, with slower demand for jumpers and coats, Next's sales in the UK are currently up 6pc in the quarter to the end of October, rather than the 10pc previously forecast for the period.
It hopes that it will recover some of the lost sales when the weather turns but if the unusually warm conditions continue for the full duration of October it is likely to lower its full-year profit guidance of £775m (€993m) to £815m.
The group, which overtook Marks & Spencer with a £695m annual profits haul earlier this year, had been experiencing its strongest sales growth for many years prior to the slower performance seen in September.
Next shares opened 5pc lower, while other retailers were also impacted by the update. Marks & Spencer dropped 4pc and Sports Direct International fell 1pc.