Climate averages 1991–2020

Weather in Peru.

ClimaNote covers 24 cities in Peru, starting with Lima, Callao and Trujillo. Open a city for charts and a table of all 12 months, or open a month for a side-by-side comparison of cities in the atlas.

Across these cities the yearly average high ranges from 13.7°C in Huancayo to 30.9°C in Sullana, and yearly rainfall from 25 mm in Chincha Alta to 2,772 mm in San Juan, Peru (tied with Iquitos). The hottest city-month is March in Piura, with an average high of 33.1°C, and the coolest is July in Huancayo, at 13.2°C. By single month, the most rain falls in January in Puerto Maldonado, with 369 mm.

February is the warmest month in 6 cities, March in 5, November in 4, September in 2, October in 2 and December in 1 (in 4 other cities two or more months tie); August is the coolest in 7 cities, July in 6 and June in 4 (in 7 other cities two or more months tie). March is the wettest month in 10 cities, February in 8 and January in 5 (in 1 other city two or more months tie); August is the driest in 8 cities, July in 4, June in 3 and April in 1 (in 8 other cities two or more months tie). Of these cities, 10 have a month with under 1 mm of rain and 4 have a month with more than 300 mm of rain; none has a month with an average high below 2.0°C.