If you’re looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in Uruapan: The hottest months are usually April and May, with an average temperature of 20°C, while the coldest months are January and February, with an average of 17°C. The rainiest months in Uruapan are August, July, September and June, with each month seeing an average of 482 mm of rainfall.