Fashion sales fell 0.8% at John Lewis last week despite the “welcome” return of more typical British summer weather.
However, in the week to August 10 overall at the department store chain sales rose 7.1% to £65.07m.
David Barford, director of selling for London and the South, said: “The flow of new season stock continues in and with the cooler weather, customers will be keen to shop newness.”
Barford added that some of the buying groups within the fashion division had “strong performances”, with women’s accessories and beauty being one of the top performing categories delivering a 7.1% increase on last year.
Schoolwear was also up 17.2% while men’s formalwear and footwear increased by 18.2% and 11.3% respectively on the 2012 figures.
The retailer reported a 21.4% surge in online sales.
But the north/south divide continued from last week, with southern stores up against tough comparisons from last year’s Olympic Games.
Northern stores delivered a 10.5% increase on last year, with Chester topping the table with an increase of 24.6, Trafford was up 19.6% and Glasgow had an increase of 14.8 % on last year.