Asda Christmas Sales Decline 2025 Dates. Elsewhere, asda will also be continuing its ‘winter warmer’ offer for customers over 60, who can purchase soup, a roll, and unlimited tea or coffee for £1 (€1.21) in any of the. Asda was the only major supermarket in the uk to see its sales decline in the lead up the crucial christmas trading period.

The latest decline led to asda’s market share falling to 12.5pc in december, down from 13.5pc a year earlier. Shopper spending has decreased, despite slowing inflation, ahead.