Footfall at shopping centres declined by 4.3% last week compared with the year before, dragging down the overall average across all retail locations.
High street and retail park footfall fell by 0.5% and 2% respectively for the week ended 29 April, the Springboard index shows.
Across all locations, footfall was down 1.4% on the same week in 2016.
The biggest declines in numbers to shopping centres were seen in Greater London (5.4%), North and Yorkshire (4.9%) and the South East (2.4%).
“Now that Easter is over and the school term has started, the comparison between footfall performance this year with 2016 is much more relevant again,” said Springboard’s marketing and insights director Diane Wehrle.
She added: “The drop in footfall in retail destinations across the UK last week of 1.4% was an improvement on the same week last year, when footfall declined by 1.9%.”