Geography of Bogota: Colombia's Capital High in the Andes

Bogota, the capital of Colombia and one of the highest major cities in the world, sits at 2,640 meters elevation on the Bogota Savanna (Sabana de Bogotá), a high-altitude plateau in the Eastern Cordillera of the Colombian Andes. The city is home to roughly 7.4 million people (10 million in the metro area), making it the largest city in Colombia and one of the largest high-altitude cities on Earth.

Introduction

The city's geography is dominated by its extreme elevation and mountain setting. The Eastern Hills (Cerros Orientales), rising to over 3,600 m directly above the city, form a dramatic wall along Bogota's eastern edge. Despite its tropical latitude (4°N), the altitude produces a cool, often overcast climate that feels more like perpetual spring than the tropics.

Location & Setting

• Coordinates: 4.7110°N, 74.0721°W
• Elevation: 2,640 m above sea level
• Area: 1,587 km²
• Country: Colombia

Bogota sits near the center of Colombia on the Bogota Savanna, a flat to gently rolling plateau roughly 40 km long and 15 km wide within the Eastern Cordillera. The plateau was once the bed of Lake Humboldt, an ancient lake that covered the area during the Pleistocene before draining through the Tequendama gorge to the west.

The Eastern Hills (Cerros Orientales) rise abruptly from the city's eastern edge, reaching 3,600+ m at Cerro de Monserrate and Cerro de Guadalupe, both visible from virtually anywhere in the city. To the west, the savanna is bounded by lower ranges and the gorge of the Bogota River, which plunges over the Tequendama Falls (157 m drop) as it leaves the plateau.

Terrain & Landscape

• Bogota Savanna: High plateau, former lakebed, 2,550–2,650 m
• Eastern Hills: Mountain wall rising to 3,600+ m directly above the city
• Western Edge: Bogota River gorge and Tequendama Falls
• Wetlands: Remnant humedales (wetlands) throughout the savanna

The Bogota Savanna is remarkably flat, a legacy of its origin as a lakebed. Deep lacustrine sediments—clay, silt, and diatomite—underlie the plateau, creating soft soils that can amplify seismic waves and complicate construction. The flatness of the savanna facilitated Bogota's rapid outward expansion, though urban sprawl now threatens the productive agricultural land and remaining wetlands.

Bogota's remaining humedales (highland wetlands) are ecological gems under severe pressure. Once covering much of the savanna, these wetlands have been reduced by over 95% by urbanization. The surviving fragments—including Humedal La Conejera, Humedal Juan Amarillo, and others—support migratory birds and endemic species, and provide flood control and water filtration. Protecting these wetlands is a major environmental challenge.

Climate & Weather

• Climate Type: Subtropical highland (Köppen Cfb)
• Average Temp: 7–19°C year-round (very narrow range)
• Rainfall: ~840 mm annually, bimodal (two wet seasons)
• Frost: Possible on clear nights, especially December–February

Bogota's climate is cool and remarkably consistent year-round, a function of its 2,640 m elevation near the equator. Average high temperatures hover around 18–19°C throughout the year, with nighttime lows of 5–8°C. There are no traditional seasons; instead, Bogota has two wet periods (March–May and September–November) and two drier periods (December–February and June–August).

The weather is famously changeable—Bogotanos say you can experience all four seasons in a single day. Mornings often start clear and cool, clouds build through the day, and afternoon rain is common during the wet seasons. The Eastern Hills generate orographic rainfall, receiving significantly more precipitation than the western savanna. UV radiation at this altitude is very strong despite the cool temperatures, a common cause of sunburn for unprepared visitors.

Water & Rivers

• Bogota River: Main river, heavily polluted, drains the savanna
• Tunjuelo River: Southern tributary, also polluted
• Tequendama Falls: Bogota River plunges 157 m at western edge of savanna
• Páramo Water Source: High-altitude wetlands above 3,000 m provide most water

The Bogota River (Río Bogotá) collects drainage from the entire savanna and is one of the most polluted rivers in South America. As it flows through the metropolitan area, it receives largely untreated sewage and industrial waste from millions of people. The Tequendama Falls, where the river plunges 157 m off the plateau, was once a natural wonder but has been severely degraded by pollution. A major wastewater treatment plant (Canoas) is under construction to address this.

Bogota's water supply comes primarily from the páramos—unique high-altitude wetland ecosystems above 3,000 m in the surrounding mountains. The Chingaza and Sumapaz páramos, which trap moisture from Amazonian and Orinoquian air masses, supply roughly 80% of Bogota's drinking water. These fragile ecosystems, found only in the northern Andes, are threatened by climate change, agriculture, and mining.

Seismic Risk & Geology

• Seismic Zone: Intermediate risk within the Andean zone
• Soil Conditions: Soft lacustrine sediments amplify seismic waves
• Notable Events: 1785, 1917 earthquakes caused significant damage
• Nearby Faults: Multiple active faults in the Eastern Cordillera

Bogota faces moderate seismic risk from faults within the Eastern Cordillera and from the subduction of the Nazca Plate beneath South America to the west. The soft lacustrine sediments of the Bogota Savanna can amplify seismic waves significantly, similar to Mexico City's lakebed effect. Earthquakes in 1785 and 1917 caused extensive damage to the colonial and early modern city.

The city's rapid growth has placed millions of people in seismically vulnerable structures, particularly in informal settlements on the hillsides and in areas of soft, saturated soils. Colombia's building codes have been strengthened after several national earthquake disasters, but enforcement remains uneven. Landslide risk is also significant on the steep Eastern Hills during heavy rain.

Key Facts

• Bogota sits at 2,640 m elevation on the Bogota Savanna, a high Andean plateau that was once a lake.
• Despite being only 4° from the equator, the altitude produces average temperatures of 7–19°C year-round.
• Over 95% of the savanna's original wetlands have been lost to urbanization.
• Páramo ecosystems in the surrounding mountains supply roughly 80% of the city's drinking water.
• The Bogota River, draining the entire savanna, is one of the most polluted rivers in South America.

Fun Facts

• The Bogota Savanna was once covered by Lake Humboldt during the Pleistocene, which drained through the Tequendama gorge.
• UV radiation in Bogota is extremely strong due to the 2,640 m elevation, despite cool temperatures.
• Bogotanos say you can experience "all four seasons in a single day" due to rapid weather changes.
• The Tequendama Falls, where the Bogota River drops 157 m, was once a natural wonder but has been degraded by severe pollution.

Final Thoughts

Bogota's geography is defined by altitude. At 2,640 meters, the city has a cool climate despite its tropical latitude, depends on fragile highland ecosystems for its water, and sits on the soft sediments of an ancient lakebed that amplify earthquake risk. The Eastern Hills provide a dramatic mountain backdrop but also channel rainfall and constrain the city's eastward growth. Bogota's future depends on protecting the páramos that supply its water and managing the sprawling growth that continues to consume the unique landscape of the Bogota Savanna.