<P> Combarbalá's climate is semi-arid, with a relative humidity around 50% . Summer temperatures range from 24 to 33 ° C (75 to 91 ° F) with the much cooler nights typical of desert climates . Winter temperatures are generally above freezing, the minimum being ~ 3 ° C (37 ° F). Most of the year it is clear and sunny . Annual rainfall is about 200 mm, but long droughts and heavy rains are not rare in the region . </P> <P> The vegetation found in the commune is typical of the area climate, adapted to the dryness and low relative humidity of the climate . Predominating species are in most of the area are different types of cacti, hawthorns and carob trees . However, in the valleys, near the rivers, is possible to find more water - demanding species, like Eucalyptus and Weeping Willows . </P> <P> Rivers in the area are fed by two main sources: rain and melting snow . Because of this, their levels rise at least twice a year: in winter due to rains, and in summer due to snow melting . In a normal year, rains can be up to 200 mm . But periods of drought or heavy raining are not uncommon . </P> <P> There are a number of small rivers that come down from the Andes mountain chain, which tribute their water to the three main rivers in the commune: Combarbalá, Cogotí and Pama . All of them end at the Cogotí dam, which has a capacity of 150 million cubic meters (~ 39 billion gallons). From there, it flows into the Guatulame River and then to La Paloma dam in the commune of Monte Patria . </P>

Province/region where the copper are found