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The climate of Peru due to its considerable extension from north to south and to the difference in height between the various areas of the country is very varied. The climate of the country is greatly influenced by the presence of the Andes chain and that of the cold Humboldt current along the coasts of the Pacific ocean.
In general we can say that along the coast of Peru the climate is arid sub-tropical with very little rainfall. Along the Andes range, the climate has two seasons, a rainy summer and a dry winter. The Amazon area has hot humid climate with rains all year round and a relatively dry short season between June and August.
THE CLIMATE OF LIMA
The climate of the capital Lima is mild, sub-tropical desert, and is influenced by the cold Humboldt current, which ensures minimum average temperatures ranging between 12 ° C / 20 ° C and maximum average temperatures of 25 ° C / 30 ° C.
The rains are practically absent with an annual average of 13 mm, while the humidity is very high, this causes the rather continuous presence of the fog especially between May and November.
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| LIMA (34 meters) | ||||
| Month | Average low (°C) | Average high (°C) | Precip. (mm) | Precip. days |
| January | 19,4 | 26,1 | 0,8 | 0,7 |
| February | 19,8 | 26,8 | 0,4 | 0,7 |
| March | 19,5 | 26,3 | 0,4 | 0,7 |
| April | 17,9 | 24,5 | 0,1 | 0,3 |
| May | 16,4 | 22,0 | 0,3 | 1,1 |
| June | 15,6 | 20,1 | 0,7 | 2,3 |
| July | 15,2 | 19,1 | 1,0 | 3,0 |
| August | 14,9 | 18,8 | 1,5 | 4,1 |
| September | 14,9 | 19,1 | 0,7 | 3,1 |
| October | 15,5 | 20,3 | 0,2 | 1,2 |
| November | 16,6 | 22,1 | 0,1 | 0,4 |
| December | 18,2 | 24,4 | 0,2 | 0,5 |
| YEAR | 17,2 | 22,5 | 6,4 | 18,2 |
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THE CLIMATE OF THE PERU COAST
The climate along the Peruvian coast is hot and semi-arid in the extreme north, and arid and cold throughout the rest of the coastline going south. The extreme north coast presents summer temperatures ranging between 28°C and 38°C during the day and 20°C-23°C overnight. The rains are concentrated during the summer months between December and March and reached an annual average of 200 mm. The winter has temperatures ranging between 14°C-18°C at night and 22°C-29°C during the day.
The central and southern coasts have a mild climate with annual rainfall between 10 and 150 mm. The months between December and March are hot and sunny with average minimum temperatures ranging between 18°C and 22°C, while the average maximum range between 24°C and 30°C. The winters are cold and wet, with frequent mists, the average maximum winter temperatures vary between 15°C and 23°C, while the average minimum varies between 15°C and 8°C. The so called rainy season is between June and October.
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| TRUJILLO (34 meters) | ||||
| Month | Average low (°C) | Average high (°C) | Precip. (mm) | Precip. days |
| January | 17,0 | 25,1 | 1 | |
| February | 18,0 | 25,8 | 1 | |
| March | 17,9 | 25,8 | 1 | |
| April | 16,8 | 24,4 | 0 | |
| May | 15,6 | 23,2 | 0 | |
| June | 14,7 | 20,7 | 0 | |
| July | 13,9 | 20,8 | 0 | |
| August | 13,9 | 20,4 | 0 | |
| September | 13,8 | 20,5 | 0 | |
| October | 14,1 | 20,8 | 0 | |
| November | 14,6 | 22,0 | 0 | |
| December | 15,2 | 23,7 | 0 | |
| YEAR | 15,5 | 22,7 | 3 | |
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THE CLIMATE OF THE PERUVIAN ANDES
The climate of the Peruvian Andes is very varied and greatly influenced by altitude. In general the rainy season occurs between December and April, but their intensity varies considerably from area to area, for example along the south-western Andes there are between 200 and 500 mm of rain per year, while on the eastern side rainfall exceeds 1,000 mm per year.
Snow is frequent between 4,000 and 5,000 meters. Temperatures vary greatly with height. Between June and September the Andean area has sunny days, but with strong temperature variations between day and night, temperatures vary more between day and night than in the seasonal line.
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| CUZCO (3399 meters) | ||||
| Month | Average low (°C) | Average high (°C) | Precip. (mm) | Precip. days |
| January | 6,6 | 18,8 | 145,3 | 18 |
| February | 6,6 | 18,8 | 133,7 | 13 |
| March | 6,3 | 19,1 | 107,0 | 11 |
| April | 5,1 | 19,7 | 43,2 | 8 |
| May | 2,7 | 19,7 | 8,7 | 3 |
| June | 0,5 | 19,4 | 1,5 | 2 |
| July | 0,2 | 19,2 | 4,0 | 2 |
| August | 1,7 | 19,9 | 8,6 | 2 |
| September | 4,0 | 20,1 | 21,8 | 7 |
| October | 5,5 | 20,9 | 39,4 | 8 |
| November | 6,0 | 20,6 | 71,9 | 12 |
| December | 6,5 | 20,8 | 122,7 | 16 |
| YEAR | 4,3 | 19,7 | 707,8 | 102 |
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THE CLIMATE OF THE PERUVIAN AMAZON
The low lands of Peruvian Amazon have a rainy and humid climate throughout the year, temperatures vary between 18°C and 36°C, while the amount of rainfall varies between 2000 and 4000 mm per year. In some southern regions there is also a relatively short dry season between June and August.
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| IQUITOS (104 meters) | ||||
| Month | Average low (°C) | Average high (°C) | Precip. (mm) | Precip. days |
| January | 22,1 | 31,6 | 279,0 | 21 |
| February | 22,0 | 31,7 | 226,7 | 17 |
| March | 22,1 | 31,9 | 279,0 | 22 |
| April | 22,1 | 31,0 | 309,8 | 20 |
| May | 21,9 | 30,6 | 273,7 | 21 |
| June | 21,3 | 30,4 | 190,1 | 19 |
| July | 20,8 | 30,9 | 181,9 | 15 |
| August | 21,1 | 31,6 | 164,6 | 15 |
| September | 21,4 | 32,1 | 189,0 | 16 |
| October | 21,8 | 31,9 | 241,9 | 17 |
| November | 22,1 | 31,9 | 260,2 | 19 |
| December | 23,2 | 31,7 | 282,4 | 20 |
| YEAR | 21,8 | 31,4 | 2878,3 | 222 |
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WHEN TO GO TO PERU
The best time to visit Peru are the months of July to September, which correspond to the dry season along the Andean mountain range. For the coast, however, the best period is the sunny and humid months between December and March, when the coast is free from the cold fog that instead covers it for the rest of the year.
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