Peru Weather

When you visit Peru, one of the first things you’ll hear from the locals is that the country has three geographic zones: costa, sierra, y selva—coast, mountains, and jungle. Each zone has its own distinctive climate, so it’s a good idea to familiarize yourself with the latter when planning your trip.

The weather along the coast is generally moderate. This may seem strange, considering the area is basically desert, but its due in part to the cold Humboldt Current that flows along the shore. This means that the weather in cities like Lima and Trujillo hovers between 60 and 80 degrees all year, with almost no rain. In summer (December to March), there are warm days with strong sunshine, but in the winter a coastal fog called la garúa sets in and makes everything gray.

Weather in the sierra consists of wet and dry seasons; the former runs from November to March, the latter from May to September. The days are generally bright and clear, but at night, temperatures can dip down below zero, especially on the southern altiplano (Andean plateau), so you’ll need a warm jacket. Also, beware of sudden rainstorms, which can spring up quickly during the wet season. Fortunately, the sierra’s peak tourist period (June to August), with its numerous festivities, coincides with the dry season, so North Americans and Europeans who go during their summer vacation should have no problems.

The jungle, too, has wet and dry seasons, with strong heat and humidity year round. Generally the months from June to September are the best time to go, since wildlife-viewing opportunities will be reduced during times of heavy rain. Landslides and flooding are also a problem from January to April; plan accordingly.

Average monthly temperatures (°F) and rainfall (inches) for select locations in Peru are shown below.

Arequipa

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High696869707069696971717070
Low515151494746464647484849
Rain121000000000

Cusco

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High646465666766666667686766
Low454646433935343741444545
Rain654200001234

Iquitos

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High888787878685858788888888
Low737373737372717272727373
Rain1110121211867891010

Lima

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High798080767269676667697276
Low686969666361606059616366
Rain000000000000

Puerto Maldonado

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High878788878786869292909087
Low726969696663606266676971
Rain8663232035510

Trujillo

MonthJanFebMarAprMayJunJulAugSepOctNovDec
High757777747270686767687073
Low677069676563626161616365
Rain000000000000

Source: Weatherbase.

Have Questions? Call 1-888-268-9753 to Speak to An Expert.