Climate & Weather Guide in Paraguay

Climate zones, seasonal temperatures, rainfall patterns, and best travel times

Paraguay has a hot inland climate with strong regional contrasts between the wetter east and the drier west. Most of the country is tropical savanna, while the eastern Paraná area is more humid subtropical and the northwestern Chaco is hot semi-arid to seasonally dry. National climate summaries for the 1991-2020 period show a warm country overall, with summer heat often intense and winter usually mild to warm, though cool south winds can bring brief colder spells. Rainfall is concentrated in the warm season, and the western lowlands are much drier than the east. Paraguay is large enough and climatically diverse enough to justify multiple zones, with the east generally more comfortable for those wanting greener surroundings and steadier rainfall.

Summer Average

30-38°C

Winter Average

16-23°C

Climate Types

Humid subtropical and Tropical savanna and Hot semi-arid

Annual Rainfall

500-1800 mm

Sunshine Hours

2,500-3,100 hrs/yr

Average Humidity

60-75%

Regional Climate Variations

Eastern Paraná Region

This is Paraguay’s wettest and most settled climate zone, with a humid subtropical character and abundant rainfall spread through the year. Seasonal temperature changes are moderate compared with the rest of the country, and the air often feels more humid and less dusty than in the west. This region includes major urban and agricultural areas, so it is generally the most comfortable choice for residents who prefer greener landscapes and fewer extreme dry spells. Summer is hot, but the higher rainfall helps reduce the harshness of the heat compared with the Chaco.

Summer:28-33°C

Winter:14-20°C

High rainfall

Humid, greener, and more stable than the west, with warm summers, mild winters, and frequent rain that supports agriculture and denser settlement.

Central and Northern Lowlands

Central and northern Paraguay are dominated by tropical savanna conditions, with a long hot season, a shorter mild winter, and rainfall that is concentrated in the warmer months. Compared with the east, this area is a little drier and more seasonally marked, but it still supports farming and urban life. Heat can become intense in late spring and summer, and residents should expect high evaporation, strong sunshine, and occasional humidity surges before storms. This zone offers a more typical inland Paraguay feel: warm most of the year, with noticeable wet and dry swings.

Summer:31-38°C

Winter:16-22°C

Moderate rainfall

Hot, sun-drenched, and seasonally wet, with a mix of humid storm periods and drier stretches that make the climate feel distinctly tropical inland.

Western Chaco

The Chaco is Paraguay’s hottest and driest major region, with a hot semi-arid climate in the northwest and broader dry tropical conditions across much of the west. Rainfall is lower and less reliable than in the east, and drought risk is much higher. Summers are very hot, with heat often feeling more oppressive because of strong sun and limited evaporative relief, while winters are generally milder but can still bring sharp temperature swings. This region is less comfortable for people sensitive to dryness and heat, but it can suit those who prefer open landscapes and are prepared for a tougher climate.

Summer:33-40°C

Winter:15-21°C

Low to moderate rainfall

Very hot, dry, and highly seasonal, with strong sunshine, high evaporation, and frequent drought stress that makes the climate feel harsh and demanding.

Paraguay is a warm country with three practical climate zones: wetter and more comfortable in the east, hotter and more seasonal in the center and north, and much drier and harsher in the western Chaco. For residents and expats, the eastern Paraná region is usually the easiest climate to adapt to, while the west demands more tolerance for heat, dryness, and climate extremes.

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