Hoi AnApr–Jun: mild temperatures, lower humidity, and fewer crowds make it perfect for wandering the lantern‑lit streets and cycling to nearby rice fields.
Hoi AnJul–Aug: high heat and humidity, but the vibrant water‑puppet shows and fresh seafood are worth the summer bustle; ideal for beach days and night markets.
Hoi AnSep–Oct: cooler evenings, reduced rainfall, and moderate tourist flow allow for comfortable temple visits and scenic boat rides along the Thu Bon River.
Hoi AnNov–Dec: crisp air, lower prices, and fewer tourists create a relaxed atmosphere for exploring the old town and nearby My Son ruins.
Hoi AnJan–Feb: cooler temperatures, occasional drizzle, and very low crowd levels provide a peaceful setting for cultural tours and cooking classes.
Weather varies by region—always check local forecasts.