Costco 2025 Wine Advent Calendar. Although it's only august, costco's beloved wine advent calendar has appeared back on the shelves in august ahead of the 2022 holiday season. And if you see it, buy it quick.

Costco’s popular wine advent calendar that features 24 half bottles from all over the world has returned for the 2021 season. Each bottle of wine is 375 ml, so it totals 12 standard bottles of wine.