Weather will likely play an important role when you plan your trip to El Oro de Hidalgo, and keep in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually April and May with an average temp of 66°F, while the coldest months are January and December with an average of 58°F. The rainiest months in El Oro de Hidalgo are July, August, September, and June, with each month seeing an average of 18 inches of rainfall.