Taking the local weather in Vale do Paraíba into account can help you maximise your time at the pool during your trip. The hottest months are usually February and January, 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 Vale do Paraíba are January, December, March and February, with each month seeing an average of 275 mm of rainfall.