The weather is relatively fresh. The annual average in the city goes from 10.3° and 11.3° Celsius (50.54° to 52.34° Fahrenheit). The temperature is relatively stable during the Summer and Winter. Usually, it is cold at night and during the first morning hours the temperature increases considerably until noon. On June, the temperature frequently decreases below zero to 5° and 7°C (23° and 19.4°F).

Cusco is under the macro-climatic influence of great air masses originating from the South-Eastern Jungle, the High Plateau, and even from the distant region of La Patagonia. The winds from the Southern Jungle involve large air masses filled with humidity, which are impelled by the Eastern Trade Winds.

The winds that come from the Peruvian-Bolivian High Plateau are cold and dry, just like those originating from La Patagonia, which are supposed to involve larger events. These winds enter through the South-Eastern zone.

On the other hand, the local winds generated at the valleys and at Cusco plains aim at distributing the heat and humidity during the day.

The seasons change during the year is not very evident; but, generally, it is possible to distinguish two well-defined seasons:
- the rain season, which goes from November to March; and the dry season, which goes from April to October. It has an average annual temperature that fluctuates between 11°C and 13°C. During the sunny days the temperature goes up to 20°C.

RAIN: Cusco has a special weather due to he height at which it is located as well as its closeness to the Equator. There are just 2 well-defined seasons: a dry season and a rainy one. The dry season goes from May to October and the rainy season goes from November to April. In general, the rain fluctuates between 600 to 800 mm. During the year it varies between 31.5 to 34.5 inches.

Warm Climates (humid and dry)

Humid:
They correspond to the Low Jungle zones, both to the North at the Low Urubamba, and to the East part of the department at the entry to the Valleys of Pillcopata and Araza.

* Precipitations: More than 1,000 per year
* Temperatures:

· Maximum: 30° approximately
· Mean: Between 23° and 25°
· Minimum: 20° approximately

Dry Climates:
The warm and dry climates correspond to the Low Yungas that appear, as canyons, at the basin of the Apurímac River, at the center and Southwest part of the department.

* Precipitations: Less than 500 mm. per year
* Temperatures:

. Maximum: Up to 32°
· Mean: Between 17° and 18°
· Minimum: Up to 4.4°

Mild Climates (humid and dry)
These are the climates from the interandean valleys that domain the central zone of the Cusco territory, where the humidity difference is characterized by the location at the versant. In other words, the closeness to the East implies more humidity, whereas the proximity to the West implies more dryness. The mild climate zones are essential for the populations' establishment.

* Temperatures:

. Maximum: Up to 29°
· Mean: Between 11° and 16°
· Minimum: Between 7° and -4°

Cold Climates
They correspond mostly to the high areas of valleys, "Punas" and regions surrounding the glaciers; that is, in those areas above 3,800 m.a.s.l.

* Temperatures:

. Maximum: Up to 10°
· Mean: They vary according to the height.
. Minimum: Below 0°

HUMIDITY: At the lowest section of the Cusco Valley there is an average annual humidity of 64%.