Average temperature: 20.5°C. The hottest month is September, with an
average high of 28°C and an average low of 16ºC. The coolest month is
July, with an average high of 25ºC and an average low of 13°C. The
monthly difference between the average high is around 3 degrees celsius
and the average low 5 degrees celsius.
The altitude ensures that the climate is moderate without the tropical
humidity of lower altitudes. The climate has basically two seasons:
rainy and dry. Rains occur between October and March and are rare after
April. Maximum temperatures average 28ºC. In the dry season, the
temperature decreases and can reach daily highs of 13ºC in July although
maximum averages of 25ºC are the norm. During the dry season the
relative humidity of the air reaches critical levels, particularly
during the hottest times of the day. Between November and April the air
quality improves, favored by the evaporation of the waters of Lake
Paranoá. With almost 40 km² of area and 500 million m³ of water, this
artificial lake was designed to ameliorate the harsh climactic
conditions of the winter.