Weather will likely play an important role when you plan your trip to Huillanopampa, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually November and October, with an average temperature of 8°C, while the coldest months are June and July, with an average of 5°C. The rainiest months in Huillanopampa are January, February, December and March, with each month seeing an average of 189 mm of rainfall.