There's nothing like an all-inclusive holiday in Matta 'e Peru to revive you, especially when you know what to expect from the elements. Here's some information to help you decide when to book: The hottest months are usually July and August, with an average temperature of 24°C, while the coldest months are February and January, with an average of 11°C. July and August are the driest months, while November and January are the rainiest months.