UGG fans have a good reason to start shopping ahead of the changing seasons: UGG’s end-of-summer sale is here, with select footwear marked down for a limited time. Why Shop UGG’s End-of-Summer Sale? Is UGG’s End-of-Summer Sale Worth Shopping? UGG’s end-of-summer sale is a good opportunity to shop discounted footwear before fall demand picks up. From sandals and sneakers to cozy slippers and boots, shoppers can find seasonal styles at lower prices while supplies last.