Taking into account the local weather in Hacienda Tres Amigos can help you maximize your time at the pool during your trip. The hottest months are usually April and May with an average temp of 77°F, while the coldest months are January and February with an average of 74°F. The rainiest months in Hacienda Tres Amigos are July, October, June, and November, with each month seeing an average of 16 inches of rainfall.