Plizio Visual Lab

Gran Chaco (Bolivia)

Plizio editorial teamUpdated: Jun 2026Data Sources

Relief

Weather…

The Bolivian portion of the Gran Chaco spans the departments of Santa Cruz, Chuquisaca, and Tarija in the country's southeast. This semi-arid lowland is characterized by thorny dry forests, savannas, and extreme climatic conditions, including some of the highest summer temperatures in South America. Geographically, the Chaco is a sedimentary basin located between the Andes Mountains to the west and the Brazilian Shield to the east. The region's history is dominated by the Chaco War (1932-1935) fought between Bolivia and Paraguay over suspected oil reserves, a conflict that resulted in tens of thousands of casualties. Today, the Chaco is indeed one of Bolivia's most vital natural gas production regions, significantly impacting the national economy. It is home to indigenous peoples such as the Guarani and Weenhayek, whose livelihoods depend on the fragile environment. The Kaa-Iya del Gran Chaco National Park protects a vast area of this ecosystem and is famous for its jaguar populations and the rare Chacoan peccary.

Best time to visit & climate

The most pleasant time to visit is May–Jul.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg °C	28	27	27	25	22	21	21	24	27	29	29	29
Rain mm	122	124	100	62	29	16	10	7	17	43	69	117

📋 Practical info

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Getting there

Access to the Gran Chaco usually begins from eastern cities like Santa Cruz or Tarija. Traveling deeper into this region requires a reliable vehicle due to long distances of unpaved, dusty roads.

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Best season

The cooler dry season from May to October is the most pleasant time to explore. The wet summer months bring stifling heat and turn the dirt roads into muddy, impassable quagmires.

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Terrain & paths

The environment is a vast, remarkably flat expanse dominated by dense, thorny scrubland, dry forests, and sparse savannahs, offering very little natural shade and almost zero elevation change.

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What to bring

Lightweight, breathable, and long-sleeved clothing is essential for protection against harsh sun and abundant insects. A wide-brimmed hat, insect repellent, and plenty of water are absolutely mandatory.

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Parking

Parking is informal and abundant; visitors simply pull their vehicles off the dirt tracks into clearings. Care must be taken not to park over dry brush to prevent the risk of starting a wildfire.

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Safety

Dehydration and heat exhaustion are severe risks in this harsh climate. Additionally, some local wildlife, including certain snake species, require visitors to tread carefully in the thick undergrowth.

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Time needed

Wildlife watching and general exploration usually take 1 to 2 days within targeted reserves, though traversing the entire expanse of the Chaco region would require several days of continuous driving.