You can plan your beach trip with this snapshot of year-round temperatures in Sao Felix do Tocantins: The hottest months are usually September and August, with an average temperature of 29°C, while the coldest months are July and June, with an average of 26°C. The rainiest months in Sao Felix do Tocantins are January, March, December and February, with each month seeing an average of 314 mm of rainfall.