The weather in Peru is varied due to the country's diverse terrain, which leads to a mixed climate across its different regions. Peru has three climate zones: coastal region (La Costa), Andean region (La Sierra), and the Amazon Rainforest (La Selva).
The extreme altitude changes of the mountainous landscape mean that one part of the country may be experiencing freezing cold temperatures while the coastal regions have sunny weather.
The Pacific coastal regions have an unusual desert climate and experience little rainfall. Peru's capital, Lima, is located a bit further inland and also has low rainfall. Lima's warm season is from December to April, with average temperatures ranging from 66°F to 81°F (19°C to 27°C). Winter (June to October) temperatures in the city often drop to 60°F (15°C).
On the other hand, the mountainous and jungle regions experience heavy rains, particularly in the peak wet season from January to March. The drier months in Andean region and Amazon Rainforest are typically from June to September.
If you're moving to Lima or any of the surrounding areas, you'll likely need lightweight clothing in summer. Warm thermal clothing is essential in the mountainous regions, and waterproof clothing is required in the rainy regions.