When Is Mardi Gras Day 2025. For 2025, fat tuesday falls on march 4, three weeks later than 2024’s feb. This date is crucial for many reasons, not least of which is that it marks the day before ash.

In between those three months will be parties, parades and other celebrations of. Mardi gras, fat tuesday, will next be celebrated in louisiana on tuesday, march 4, 2025.