Other facts from our historical weather data: Which months have the greatest rainfall in Morro de São Paulo? Most rainfall (rainy season) is seen in April, May, June and July. Which is the warmest month in Morro de São Paulo? March has an average maximum temperature of 30°C (86°F) and is the warmest month of the year. Which is the coldest month in Morro de São Paulo? The coldest month is August with an average maximum temperature of 27°C (81°F). Which is the wettest month in Morro de São Paulo? June tops the wettest month list with 188mm (7.4 in) of rainfall. Which is the driest month in Morro de São Paulo? December is the driest month with 82mm (3.2 in) of precipitation. Which is the sunniest month in Morro de São Paulo? January is the sunniest month with an average of 246 hours of sunshine. No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.