If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Cuautla: The hottest months are usually April and May, with an average temperature of 23°C, while the coldest months are January and December, with an average of 19°C. The rainiest months in Cuautla are September, August, July and June, with each month seeing an average of 327 mm of rainfall.