For a second consecutive week, sales increased across fashion, non fashion and homewares sectors, according to the latest figures from BDO LLP.
Total sales for the week ending February 14th rose by 6.7 per cent, said the firm.
The fashion sector was up 9.9 per cent, with consumers showing good reactions to new brands and ranges for spring, with womenswear selling particularly well.
Non fashion, meanwhile, grew by 0.4 per cent - helped by Valentine's Day gift sales - while homewares was up 4.4 per cent. Textiles and lighting were the strongest performers, with furniture and cookware also doing well.
Non store was buoyed by a strong uplift in younger fashion brands, up by 39.1 per cent.
Don Williams, head of retail at BDO, said: "This time last year, many retailers were in trouble due to continuing bad weather and flooding in some parts of the country. The weather this week has also been bad, but that has not prevented shoppers from pushing sales figures up for the second consecutive week.
"Surprisingly though, Valentine's Day did not provide its usual guaranteed sales uplift. Some stores did particularly well, but some failed to match last year's figures."