Climate & Weather Guide · BoliviaClimate & Weather Guide in Bolivia
Climate zones, seasonal temperatures, rainfall patterns, and best travel times
Bolivia has one of the most varied climates in South America because its territory spans the high Andes, intermontane valleys, and vast eastern lowlands. The country is mostly tropical in latitude, but elevation creates sharp contrasts: the Altiplano is cold and dry, the central valleys are milder and more settled, the Yungas are humid and subtropical, and the lowlands range from seasonally dry savanna to very wet tropical rainforest. Recent climatology for Bolivia is based on 1991-2020 observed data, and the country’s climate diversity is explicitly described using Köppen-Geiger classification in the Climate Change Knowledge Portal.
Summer Average
18-33°C
Winter Average
5-24°C
Climate Types
Highland and Subtropical and Tropical and Semi-arid
250-2500 mm
1,800-3,200 hrs/yr
45-85%
Regional Climate Variations
Altiplano and Western Andes
This high-elevation zone covers La Paz, Oruro, and much of western Bolivia, where thin air and strong sunshine offset cold temperatures. The climate is cool to cold year-round, with a long dry season and frequent nighttime frosts, especially on the plateau. Bolivia’s western highlands are described as cool on the Cordillera Occidental and parched across most of the Altiplano, with the rainy season concentrated from December to February.
Dry air, intense UV, cool days, and very cold nights; comfortable for those who prefer a crisp mountain climate over heat and humidity.
Central Valleys and Cochabamba-Tarija Highlands
The intermontane valleys offer Bolivia’s most temperate and livable climate for many expats, with milder temperatures, more sunshine, and generally less extreme cold than the Altiplano. Blue Green Atlas notes that the lower Cordillera Oriental valleys have a semiarid Mediterranean-like climate, while conditions become semitropical in nearby lower areas. These valleys are often attractive for agriculture and urban settlement because they combine moderate warmth with manageable rainfall.
A spring-like feel in many cities, with warm sunny afternoons, cooler evenings, and a generally balanced climate for year-round residence.
Yungas and Eastern Andean Slopes
This narrow transition belt on the eastern slopes of the Andes is humid, green, and much warmer than the highlands. The climate becomes semi-tropical in the Yungas, with abundant moisture and lush vegetation, making it one of Bolivia’s most distinctive ecological zones. Because elevation changes rapidly here, temperatures can shift quickly over short distances, and rainfall is much higher than in the west.
Warm, humid, and frequently cloudy or rainy; ideal for lush landscapes but less comfortable for people who prefer dry weather.
Northern Amazon Basin
Bolivia’s northern lowlands are tropical and very wet, with dense forest, high humidity, and a long warm season. Blue Green Atlas notes that rainfall is heavy in the northeast lowlands and that flooding is common in March and April, which is important for residents considering housing, transport, and infrastructure resilience. This is one of the country’s hottest and most humid regions.
Hot, humid, and lush, with frequent heavy rain and a distinctly tropical feel throughout most of the year.
Southern Lowlands and Chaco
The southern lowlands are warmer and drier than the northern Amazon, especially toward the Chaco, where the lowland plain becomes drier to the south. This zone has strong seasonal contrasts, with hot summers, milder winters, and a higher risk of dry spells and heat stress than in the humid northeast. For residents, the climate can feel more open and sunlit, but water availability and summer heat are important practical considerations.
Hot, sunny, and more seasonally dry than the rest of the lowlands, with a distinctly warmer and less humid feel.
Bolivia’s climate is highly diverse because elevation changes create everything from cold, dry highlands to humid tropical lowlands. For residents and expats, the most comfortable areas are often the central valleys, while the Altiplano suits people who prefer cool, dry mountain weather and the lowlands suit those who can tolerate heat and humidity.
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