If you're looking forward to lots of outings with your partner, take a look at these details about year-round temperatures in San Pablo Villa de Mitla: The hottest months are usually April and May, with an average temperature of 19°C, while the coldest months are January and December, with an average of 16°C. The rainiest months in San Pablo Villa de Mitla are September, June, August and July, with each month seeing an average of 237 mm of rainfall.