Taking the local weather in Ribeirão dos Índios 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 September and October, with an average temperature of 26°C, while the coldest months are July and June, with an average of 21°C. The rainiest months in Ribeirão dos Índios are January, December, February and March, with each month seeing an average of 209 mm of rainfall.