The weather is important when you want to venture out and explore, so here's a little information about the local climate: The hottest months are usually September and August with an average temp of 80°F, while the coldest months are June and July with an average of 75°F. The rainiest months in Sao Miguel Do Guapore are February, March, December, and January, with each month seeing an average of 15 inches of rainfall.