Planning for the weather is an important factor for making your trip to Atlixco a success, especially when you're splurging. The hottest months are usually April and March, 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 Atlixco are September, June, August and July, with each month seeing an average of 329 mm of rainfall.