Mesopotamia
The Mesopotamia has a sub-tropical weather in the northern part and a milder climate in the southern one. It has a very diverse flora and fauna, and its territory contains hillocks, lagoons and marshes, and is crossed by large rivers. In the far north, summers are very long and humid, but not as extreme as in the Chaco region, staying most often in the 30°C to 35°C range (18°C to 24°C at night) Falls are also warm and humid, often reaching 30°C as well, and winters are mostly mild, with highs between 20°C and 24°C, and lows around 10°C.
However, temperatures still reach 30°C on occasion, but also fall to 0°C every once in a while, and it is not uncommon to see rainy days with high temperatures hovering around 10°C and strong winds from the south. Precipitation reaches up to 2,500 mm, producing a thick jungle. As we move south towards Entre-Rios, summers become shorter, and we perceive four distinct seasons, with pleasant falls between 20°C and 25°C, cool winters with highs in the 15°C to 18°C range, common night frosts and mild, windy springs. Precipitation is high throughout the year, especially in early and late summer, reaching between 1,200 and 1,800 mm.
Read more about this topic: Climate Of Argentina, Regions