Weather will likely play an important role when you plan your trip to Sao Lourenco do Oeste, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually January and December, with an average temperature of 22°C, while the coldest months are July and June, with an average of 15°C. The rainiest months in Sao Lourenco do Oeste are October, December, January and May, with each month seeing an average of 213 mm of rainfall.