Taking into account the local weather in Valles Hondos is an important factor for planning your visit, especially if you plan to spend your trip poolside. The hottest months are usually August and September with an average temp of 69°F, while the coldest months are January and July with an average of 68°F. The rainiest months in Valles Hondos are April, November, October, and December, with each month seeing an average of 12 inches of rainfall.