Carnival Mardi Gras 2025 Dates. Fat tuesday is the last day of the carnival season as it always falls the day before ash wednesday, the first day of lent. See carnival mardi gras's 2025 to 2026 schedule and popular upcoming cruise itineraries on cruise critic.

The 2025 new orleans carnival season starts on saturday, jan. Explore destinations to start your carnival mardi gras cruise planning.