Clam Chowder Day 2025. Discover the rich flavors and textures of this beloved soup and get ready for a tasty treat. Tasting begins at 10:00 a.m.

15, legal sea foods will celebrate “chowder day” in massachusetts, a longstanding tradition of the famed. In fact, in 1939 the state of maine made it illegal to put tomatoes in clam chowder!