What is the dress code for afternoon tea at the Waldorf Astoria in Washington, DC? Afternoon Tea Dress Afternoon Tea Dress Codes in London Afternoon Tea Expert 2026 Afternoon Tea party outfit ideas! 27 flattering looks + tips! I get asked what the appropriate dress code is for afternoon tea and I always recommend smart casual at a minimum. Smart casual is polished and put together but comfortable. Wear neat, clean clothing What to Wear to Afternoon Tea: 9 Outfits That Embody Elegance Who What Wear