The best time to visit Mambai, Goiás, Brazil, is during the dry season, which typically runs from May to September.
During this period, you can expect sunny days and comfortable temperatures, with less humidity and a lower chance of rain. This makes it ideal for exploring the region's natural attractions, such as its extensive cave systems and waterfalls, without the inconvenience of muddy trails or swollen rivers. Trekking and outdoor activities are much more pleasant and accessible.
For travelers interested in canyoning, rappelling, and cave exploration, the dry season offers optimal conditions. The trails leading to the waterfalls are firmer, and the water levels in the rivers are more predictable, ideal for adventure seekers.