Footfall has decreased year on year as shoppers increasingly look online for Sales bargains after Christmas.
The number of shoppers in stores between Monday and Wednesday was down 5.8% on the same period last year, research firm Springboard has reported.
Footfall on Boxing Day alone was down 7.3% year on year.
Of the three retail destinations tracked – high streets, shopping centres and retail parks – shopping centres performed best.
Springboard expects a further decline for the remainder of the week.
Diane Wehrle, insights director at Springboard, said: “The continued decline in footfall is in line with the long-term trend we have been recording alongside the growth of online channels. As an industry, we are learning how to best trade in a modern environment to co-exist with online, whilst celebrating British retail destinations that bring us leisure experiences the virtual world doesn’t offer.
“This festive season – the first post-Brexit – has been an experience for the industry learning how to best operate in a changed economic environment. The impact of declining footfall on retail sales is yet to be measured, but will without doubt help equip retailers with the insight needed to operate in 2017 with confidence.”