Taking the local weather in Ribeirao do Pinhal into account can help you maximise your time at the pool during your trip. The hottest months are usually December and September, with an average temperature of 23°C, while the coldest months are July and June, with an average of 18°C. The rainiest months in Ribeirao do Pinhal are January, December, February and November, with each month seeing an average of 206 mm of rainfall.