The best time to visit Hernandarias is during the dry season, from April to September, when the weather is most pleasant for sightseeing and outdoor activities.During these months, you'll experience lower humidity and less rainfall, with average temperatures ranging from 18°C to 25°C. This makes exploring the Itaipu Dam, one of the world's largest hydroelectric power plants, much more comfortable. It's also ideal for enjoying the natural beauty of the Paraná River and the various parks in the area.For those interested in fishing or water sports on the Paraná River, the dry season offers calmer waters and more predictable conditions. The cooler temperatures are also superb for enjoying the local cuisine at outdoor eateries without the oppressive heat of the summer months.While the summer months (October to March) can be hot and humid with frequent thunderstorms, they are still viable for visitors who don't mind the heat, especially if your focus is on indoor attractions or if you appreciate lush, green landscapes after the rains.