The best time to visit Santo Amaro Do Maranhão is during the dry season, which runs from June to October.During these months, the weather is consistently sunny with minimal rainfall, making it ideal for exploring the Lençóis Maranhenses National Park. The lagoons are full, creating the iconic landscape of crystal-clear freshwater pools located between vast white sand dunes. This period is superb for travellers who want to experience the natural beauty without interruption from rain.The shoulder seasons, May and November, can also be good options. In May, the lagoons are still very full from the rainy season, and the landscape is lush. November sees the lagoons starting to recede, but the weather remains pleasant for outdoor activities.