The best-known “Crawfish Festival” coming up in 2026 is the Louisiana Crawfish Festival , which is scheduled for March 26–29, 2026 at the Frederick J. Sigur Civic Center in Chalmette, Louisiana.

Because “when is the crawfish festival” can refer to several different events around the U.S., here are a few 2026 crawfish festivals with dates:

  • Louisiana Crawfish Festival (Chalmette, LA) – March 26–29, 2026.
  • Crawfish Music Festival (Biloxi, MS) – April 17–19, 2026 at Mississippi Coast Coliseum.
  • Michael Arnone’s Crawfish Fest (Augusta, NJ) – May 29–31, 2026.

If you had a specific city or state in mind, tell me which one (for example, “Chalmette, LA” or “Biloxi, MS”), and I can focus on that particular crawfish festival’s dates and basic details like tickets and location.