When Is Mardi Gras 20254 2025 Dates. !click on the mardi gras krewes below for further information about the krewe and to see their usual route for each parade. However, carnival celebrations always begin on january 6, a date referred to in the christian calendar as the twelfth night.

6 marking the start of carnival, that means the 2025 season will last. Mardi gras day falls on tuesday, march 4, 2025.