What to wear to New Orleans Jazz & Heritage Festival: New Orleans sits at 28°C (82°F) by day and 19°C (66°F) at night in April, on city streets, with a high chance of rain. That means a light base with one warm layer you can carry, cushioned trainers or a low boot, and a bag small enough for the gate rules. The crowd leans jazz, elegant and boho, so anything that survives the day reads as right.











