Volatile Weather Delays Corn and Soybean Plantings in South America

Heavy rains are wreaking havoc on Argentina’s farmland, leaving nearly 4 million acres at risk and delaying corn and soybean plantings in one of the world’s top grain export regions.

BUENOS AIRES, ARGENTINA (RFD-TV) — A shift in South America’s weather could shake up the crop outlook and help increase the competitiveness of U.S. grains in global trade markets.

Earlier in the week, the weather in Argentina and southern Brazil was trending drier, threatening soil moisture for winter wheat, corn, and first-season soybeans. Meanwhile, central Brazil was expected to see increased rain, easing dryness, but delaying soybean planting.

As of Thursday, heavy rains are wreaking havoc on Argentina’s farmland, and leaving nearly four million acres at risk. Central Buenos Aires is one of the world’s top grain-exporting regions. However, farmers are currently unable to access their fields, delaying soybean and corn plantings. Argentine farmers worry some land may remain idle for months, blaming years of under-investment in drainage and roads for worsening the impact.

Brian Hoops with Midwest Market Solutions told RFD-TV News that orders and cancellations will be worth watching in the weeks ahead. Hoops also said to keep an eye on weather conditions in Brazil, currently China’s top soybean supplier.

“We’re looking at China, not really buying a lot of soybeans—pretty good weather in South America – and yet, the market continues just to march higher,” Hoops explained. “We are in a tactical uptrend here for soybeans in the entire soy complex. That is giving us some strength from algorithmic-type trading on dips in the marketplace, to see if we continue to push higher. So we’re seeing a lot of strength in that, soybeans.”

Meteorologists link the pattern to a peaking La Niña, with conditions possibly normalizing early next year. Farmers will be watching closely, as this volatility could impact corn and soybean production across the continent.

Related Stories
Mold damage is tightening China’s corn supplies, supporting higher prices and creating potential demand for alternative feed grains in early 2026.
While this month’s WASDE report will not include updated figures on U.S. crop size, officials say it will offer a clearer picture of crop conditions in the Southern Hemisphere.
USTR Jamieson Greer signals a narrower trade deal with China, adding more market uncertainty. The Farm Bureau also supports reviewing China’s missed trade commitments under the Phase One.
Southern producers head into 2026 with thin margins, tighter credit, and rising agronomic risks despite scattered yield improvements.
Record yields and exceptionally low BCFM strengthen U.S. corn’s competitive position in global markets.
Credit stress is building for row-crop farms despite steady land values and slight price improvements.

Marion is a digital content manager for RFD News and FarmHER + RanchHER. She started working for Rural Media Group in May 2022, bringing a decade of digital experience in broadcast media and some cooking experience to the team.

LATEST STORIES BY THIS AUTHOR:

HTS Commodities’ Lewis Williamson provides updates on how growers are preparing for spring planting in an unpredictable agricultural landscape.
RealAg Radio host Shaun Haney explains how geopolitical developments in the Middle East can create energy-driven pressures that impact the supply chain and reshape demand for certain ag products.
Jake Charleston of Specialty Risk Insurance offers his perspective on current cattle market conditions and shares advice for producers seeking to stay protected in an uncertain market.
National Pork Producers Council incoming president Rob Brenneman shares insights from the National Pork Industry Forum in Kansas City, where producers gathered to discuss Farm Bill policy, sustainability, and other priorities for the year ahead.
USDA’s March WASDE report leaves U.S. corn, soybean and wheat ending stocks unchanged while adjusting global production estimates for South America.
Co-founders Jeremy and Heather Clark share how Vets to Cowboys helps U.S. veterans build new skills, find community in cattle ranching, and discover new opportunities in agriculture.