Taking the local weather in Antônio João into account is an important factor for planning your visit, especially if you plan to spend your trip by the pool. The hottest months are usually December and October, with an average temperature of 24°C, while the coldest months are July and June, with an average of 19°C. The rainiest months in Antônio João are January, February, December and October, with each month seeing an average of 223 mm of rainfall.