Weather will likely play an important role when you plan your trip to Valle Hermoso, but bear 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 temperature of 21°C, while the coldest months are July and August, with an average of 21°C. The rainiest months in Valle Hermoso are March, April, January and February, with each month seeing an average of 663 mm of rainfall.