Brazil’s potato market has closed the week with notably higher prices, driven by persistent rainfall that once again disrupted harvesting, logistics and overall supply. For producers and traders, this marks yet another climate-related challenge in a season already characterized by volatility.

The rains affected not only volumes but also the quality of potatoes arriving at wholesale markets, tightening availability of premium-grade product.


How Rainfall Affected the Market

Harvest Delays and Field Losses

Constant rainfall in producing states made harvesting difficult or impossible in many areas.
Waterlogged fields increase the risk of:

  • mechanical damage during harvest,
  • spoilage,
  • fungal issues,
  • reduced shelf life.

As a result, fewer potatoes reached distribution centers.

Lower Quality on the Market

The tubers that did arrive often showed defects caused by excess moisture.
With high-quality lots scarce, premium potatoes fetched significantly higher prices.

Supply Tightening Across Regions

Key producing regions — including Minas Gerais, São Paulo and Paraná — reported inconsistent supply flows.
Wholesalers noted that many shipments were smaller than expected.


Market Reaction: Prices Move Up

Producers who managed to harvest before the heavy rainfall benefited from better prices by the end of the week.
Buyers, especially in major urban centers, faced rising quotes due to:

  • reduced supply,
  • the scarcity of top-grade potatoes,
  • increased post-harvest losses from weather stress.

Similar patterns were reported earlier this year on Potatoes News: rainfall episodes have repeatedly led to abrupt price swings in the Brazilian potato market.


Potatoes News Analytics: Climate’s Growing Influence

The latest price rise further confirms a trend we’ve tracked across Brazil and Latin America:

Weather Now Drives Market Behavior

Frequent rain, heatwaves and irregular seasons are shaping supply dynamics more strongly than traditional market cycles.

Quality Volatility Is Increasing

Buyers and processors face greater variation in tuber size, defects and storability.

Infrastructure Gaps Amplify Climate Impacts

Producers with limited storage or drainage capacity suffer the most from recurring rains.

These challenges echo similar situations in Argentina, Mexico and Colombia, where climate factors are increasingly dictating market outcomes.


What the Coming Weeks May Bring

More Price Volatility

If rains persist or if new weather events occur, prices are likely to remain unstable.

Short-Term Opportunities for Some Producers

Growers with stored potatoes or access to mechanized harvesting have a temporary advantage.

Potential Pressure on Retail Prices

Consumers may see higher prices depending on regional supply and logistics conditions.


Conclusion

Once again, heavy rainfall has disrupted Brazil’s potato market, tightening supply and lifting prices. This recurring pattern highlights the sector’s vulnerability to climate variability and underscores the need for more resilient production and post-harvest systems.

The question facing the sector is:
Will Brazil invest in the infrastructure and climate-adaptation tools needed to reduce market volatility in future rainy seasons?

Brasil: La lluvia vuelve a afectar al mercado de la papa y la semana cierra con precios más altos.
argenpapa.com.ar/noticia/16771-

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Viktor Kovalev CEO
POTATOES NEWS Viktor Kovalev is the founder of Potatoes.News and the creator of the International Potato Tour (IPT) — a global multimedia project that connects potato farmers, processors, researchers, and agribusiness companies across more than 20 countries. Viktor writes about potato production, processing technologies, storage, seed breeding, export markets, innovations, and sustainable agriculture. His work combines journalism, field research, and video storytelling, giving readers and viewers a unique perspective on the global potato industry. Areas of expertise: Global potato market trends Seed potato production and certification Potato processing (chips, flakes, fries, starch) Smart farming and agri-technologies Storage, logistics, and export Interviews and field reports from leading producers