Varied South America rains not enough to quell crop yield concerns

Spotty rain helps some areas, but others left out to dry.

Rainfall continued to be spotty across Brazil last week with beneficial showers in Minas Gerais, Parana, and southern Mato Grosso do Sul. Meanwhile, Rio Grande do Sul largely missed out on the much-needed rainfall. Dryness extended down into Uruguay and a large portion of Argentina. Recent dryness is expected to take its toll on the overall grain harvest, and Conab recently lowered estimates for Brazil’s grain harvest citing weather issues.

According to forecast data from Weathertrends360, the sporadic and spotty pattern of precipitation will persist with wetter than normal conditions across Parana, Sao Paulo, and southern Mato Grosso do Sul from December 11th through the 17th. Rainfall will be varied across Rio Grande do Sul but it looks like the southwestern portion of the state continues to be the driest area of the state. Central Brazil will see much drier than normal conditions through mid-December.


Sporadic rainfall will also be the theme in northern Argentina in mid-December, although southern and western areas, including Cordoba and southern Buenos Aires, will see a lack of rainfall.  Weathertrends360 predicts that surface soil moisture will continue to run a deficit across much of Argentina, except for far northern locations and locations bordering Brazil and Uruguay.



Weathertrends360 offers a FarmCast subscription for your local forecasts looking out up to 365 days. It can be found for $399 a year at

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