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The climate in Peru

Average daytime and nighttime temperatures

All climate diagrams on this page result from the collected data of 26 weather stations.
Weather stations at an altitude above 3830m have not been included.
All data correspond to the average monthly values of the last 20 years.
Back to overview: Peru
Climate zone: tropics
It is warm to hot all year round and invites to bathe at average water temperatures of 19 degrees. The warmest and rainiest part of the country is San Martín. The coldest is Puno.
Duration of daylight and sunshine in Peru
Compare climate with other regions or countries
Hours of sunshine per daySunshine hours per day in Peru
Rainy days per monthRainy days per month in Peru
Precipitation in mm/dayPrecipitation in Peru
Water temperatureWater temperatures in Peru
Relative humidity in %Relative humidity in Peru
Absolute humidity in g/m³Absolute humidity in Peru

Regions in Peru

All figures per year. For detailed climate data click on the name of the region.
RegionTemperature
max Ø day
Temperature
min Ø night
Rainy
days
Precipitation
Arequipa21.2 °C9.0 °C16 95 l
Cajamarca21.5 °C7.5 °C97
Callao22.5 °C17.7 °C1 0 l
Cusco20.5 °C5.6 °C100 756 l
Huanuco30.1 °C19.8 °C202
Ica24.2 °C16.0 °C0 0 l
La Libertad24.9 °C17.7 °C7 26 l
Lambayeque27.2 °C18.4 °C10 40 l
Lima22.4 °C17.7 °C1 0 l
Loreto31.6 °C22.4 °C152 2,537 l
Madre de Dios30.9 °C20.2 °C2,278 l
Piura31.0 °C19.6 °C14 110 l
Puno18.4 °C0.5 °C74 555 l
San Martín32.7 °C21.3 °C104 1,077 l
Tacna22.8 °C15.6 °C4 11 l
Tumbes29.3 °C20.7 °C29 412 l
Ucayali32.1 °C21.9 °C104 1,420 l

Temperature records of the last 73 years

The hottest temperature measured from 1949 to September 2022 was reported by the Pucallpa weather station. In August 2006 the record temperature of 40.0 °C was reported here. The hottest summer from July to September, based on all 31 weather stations in Peru below 3830 metres altitude, was recorded in 1997 with an average temperature of 21.9 °C. This average temperature will normally be measured every 4 to 6 hours, thus also including the nights. Normally, this value is 19.7 degrees Celsius.
The coldest day in these 73 years was reported by the weather station Cuzco. Here the temperature dropped to -8.0 °C in May 2014. Cuzco lies at an altitude of 3249 meters above sea level. The coldest winter (January to March) was in 1950 with an average temperature of 20.8 °C. In Peru, it is usual to have about 1.8 degrees more at 22.5 °C for this three-month period.
The most precipitation fell in February 1978. With 95.2 mm per day, the Quincemil weather station recorded the highest monthly average of the last 73 years. Incidentally, the region with the most rainfall for the whole year is around Tingo Maria. The driest region is near San Juan.

Data basis and methodology

The data of the individual measuring stations are based on the archives of the German Weather Service, individual values averaged and supplemented by own elements. In order to determine a representative national average, average values were first calculated for each part of the country, which were then summarized at the national level. Thus, if a disproportionate number of weather stations are located in a small area, their number does not affect the national average.
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