If you’re looking forward to lots of outings with your partner, check out these details about year-round temperatures in Taboão da Serra: The hottest months are usually February and January with an average temp of 72°F, while the coldest months are July and June with an average of 64°F. The rainiest months in Taboão da Serra are January, February, December, and March, with each month seeing an average of 10 inches of rainfall.