The best time to visit São Romão, Minas Gerais, is generally during the dry season, from May to September, when the weather is most pleasant for exploring.
During these months, you'll experience less rainfall and cooler temperatures, making it ideal for outdoor activities like hiking and river excursions. The clear skies are great for enjoying the natural beauty of the region, including the nearby waterfalls and the São Francisco River. This period is particularly good for families looking to spend time outdoors without the interruption of heavy rains.
The shoulder months of April and October can also be good, offering a transition between the wet and dry seasons with fewer crowds and still agreeable weather. However, you might encounter occasional showers.