Because of the interaction between the Pacific Ocean and the Andes the coastline of Peru has a unique climate type. These areas only get a few tens of millimeters to 200 millimeters of annual precipitation. (1)
Snow-capped of Andes Mountains between from Lima to Cuzco(3)
Sunlight is blocked by the fog and clouds that come form the ocean. This happens mostly to the North and rarely to the South. The fog along the coast is named Garua. The colder season is from May to October and it causes the fog to remain constantly. This cause the natives to life in higher regions where is has more sunlight and therefore dryer. (1)
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| Photo Credit: Yanachaga-Chemillen National Park © Levi T. Novey (2) |
Seasonality
In the Peruvian Amazon, or the lower situated areas east of the Andes temperatures are 30-33 degrees Celsius all year round. Because of high humidity figures it feels hot and muggy. During the ‘dry’ months maximum temperatures may even be higher. In July and August temperatures of 35 degrees Celsius or even higher can be recorded on a regular basis. In the Andes temperatures are determined by the altitude you are at. In the valleys the annual average temperature is between 15 and 20 degrees Celsius. On the mountain peaks temperatures may be below freezing point. Temperatures are lower on the western side of the Andes than on the eastern side of the Andes. This is mainly caused by the Peru current or Humboldt current that supplies relatively cold sea water from the south. Temperatures during the afternoon are 21-26 degrees Celsius in the southerly located coastal places. In the northerly located coastal places temperatures are 23-28 degrees Celsius. (1)
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Climate Comparisons
Location Map - Lima, Peru and Pucallpa, Peru (3)
Below are climate comparisons data of Denver, Colorado where I currently live and two cities in Peru, Lima and Pucallpa. The charts will show the temperature and precipitation of the mentioned cities.
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| Source: worldclimate.com |
The annual temperature in Denver is 11°C and has the most seasonality compared to Peru.
The annual temperature in Lima is 19°C which has more variation of temperature but not by much. The annual temperature in Pacallpa is 26°C and Pucallpa has s steady temperature all year long.
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| Source: worldclimate.com |
Pacallpa has more monsoon seasons from October through April with the peak in March which casues flooding and mudslides Pacallpa's annual precipitation is 1569.5mm. Lima, with precipitation of 19.3mm, has a really dry season throughout the year compared to Denver's rainy season of April through August with the most rain in May. Denver's annual precipitation is 397mm.
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| Peru Climate (4) |
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