Peru’s weather varies with its landscape. The rainy season throughout the country occurs from January to March. Sun seekers should know that although it is somewhat humid, the coast is very warm at this time; a perpetual mist characterizes the beaches for the rest of the year.
The highlands of Peru, areas such as Cuzco and Lake Titicaca experience milder temperatures during the rainy season, although there are generally impressive cloudbursts in the afternoon. The high tourism season occurs from June to August, even though these can be the coldest temperatures. Travelers should remember that some of these areas are very high, and nights drop to below freezing.
The Amazon is always humid (it’s a rainforest!), although the rains recede a little from May to October. It rarely rains enough, even during the wet season, to ruin a trip. This region is also always hot, although temperatures can drop enough to require an extra layer at night.