The territories of Cusco feel the influence of the macro-climate created by great masses of air coming in from the southern forest or off the highlands and sometimes even from the distant region of Patagonia.
The winds from the southern forest bring masses of humid air. Whilst the winds which come from the Peruvian or Bolivian Highlands are colder and dryer, as are those that come from Patagonia.
On the other hand, the local winds which enter the valleys and plains of Cusco serve to distribute warmth and humidity during the day.
There are two climatic periods: the rainy season, from November until March and the dry period, from April until October.
Warm climate (humid and dry)
The areas of the low forest, for example north of Urubamba and the eastern part of the region of Cusco, the Pillcopata and Araza valleys generally experience a warm dry climate..
More than 1,000 mm. a year.
- Maximum: around 30°
- Median: between 23° and 25°
- Minimum: around 20°
The warm, dry climates, on the other hand, are in the low yunga in the basin of the river Apurimac, in the centre and southeast of the region.
Less than 500 mm. a year.
Temperate (humid and dry)
- Maximum: to 32°
- Median: between 17° and 18°
- Minimum: to 4.4°
The difference in humidity in the central valleys of the Cusco region can be marked by the towns location on the slope of the mountain. But generally the proximity of the east implies more humidity, while the vicinity of the west implies more dryness. These areas are mainly of temperate climates are of vital importance for the establishment of the population.
Cold (humid and dry)
- Maximum: to 29°
- Median: between 11° and 16°
- Minimum: between 7° and -4°
The height of the mountains in the region of Cusco means that there are areas that can get very cold especially in areas higher than 3,800 msnm.
- Maximum: to 10°
- Median: depends on the altitude
- Minimum: below 0°