If you’re hoping to get lost in the rain on your romantic getaway, check out these details about year-round temperatures in Alto Paraíso de Goiás: The hottest months are usually September and October with an average temp of 79°F, while the coldest months are July and June with an average of 75°F. The rainiest months in Alto Paraíso de Goiás are December, November, January, and February, with each month seeing an average of 13 inches of rainfall.