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South American crops see favorable weather reversal

Cooler and wetter weather arrives after record heat in Argentina.

The second week of January 2022 was one for the record books in Argentina where excessively hot and dry conditions baked the country.

Fortunately, the weather will take a dramatic turn toward much cooler and wetter weather in the third week of January, providing some temporary relief for the region. The weather will also see a reversal in central and northern Brazil where precipitation will pause allowing for harvesting and planting activities. 

Following a week of intense, record-setting heat in Argentina, the third full week of January, week-ending January 22, will bring a wholesale change in the weather. Significantly cooler and wetter weather arrives in Argentina where drought has plagued farmers much of this growing season. Farther north in southern Brazil, precipitation will be spotty. As we look even farther north, across central and northern Brazil, there will be a change to much drier weather.

The week-ending January 15 was the hottest and driest in more than 30 years for the major soybean growing region of Argentina. Record heat was a twist of the knife for farmers already struggling with drought conditions. Relief arrives in the form of much cooler and wetter weather this week, week-ending January 22, for Argentina. In fact, according to data from WeatherTrends360 this is forecast to be the second coolest and second wettest third week of January in 30+ years for Argentina’s major soybean-growing regions. Wetter than normal weather has been hard to come by this growing season in Argentina.

Weather map

Wetter weather will provide some temporary relief for farmers; however, the rain may arrive a little too late for early-planted corn and soybeans. Later-planted crops will see a greater benefit from the wetter conditions. However, this pattern change will be fleeting with drier conditions expected to return late January and into February.

In southern Brazil, prospects for rainfall will not be as high as Argentina as precipitation will be spottier, although the rainfall could be heavy for the areas where it does fall. Hotter weather will seep into southern Brazil, and this is forecast to be one of the hottest third weeks of January in 30-plus years from Río Grande do Sul to Mato Grosso Do Sul and the state of São Paulo. Hotter weather will, unfortunately, act to dry soils out more quickly.

A shift in the weather trends is also in store for central and northern Brazil where, after ample moisture thus far this season, the third week of January turns much drier. According to WeatherTrends360, this will be one of the driest third weeks of January since 1992 from Mato Grosso do Sul and São Paulo to Mato Grosso and Goiás. Dry weather in central and northern Brazil will actually be favorable as this will give farmers a chance to harvest soybeans and plant the second corn crop, Safrinha. 


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