Excessive Rain Threatens Coffee Quality in Minas Gerais

Excessive humidity and heavy rains in Minas Gerais are threatening the quality of coffee beans and disrupting the harvest process.

These weather conditions are critical because Minas Gerais is a strategic hub for coffee production. Disruptions in the South of Minas region could lead to a higher frequency of grain defects, potentially lowering the market value of the crop and affecting global supply chains.

Coffee producers said that the saturation of the soil and persistent precipitation have made harvesting operations difficult. The moisture prevents the beans from drying properly, which creates an environment where quality degrades. This trend was particularly evident during May 2026 [1, 2].

The instability is linked to broader climatic patterns. Reports said that a "Super El Niño" has contributed to extreme weather events across the state ^[3]. These conditions placed 595 cities in Minas Gerais under a yellow alert ^[3].

Meteorological bulletins have warned of continued instability, with rain possibilities extending as late as 9 p.m. in affected areas ^[3]. Farmers in the southern regions are monitoring the fields closely as they attempt to salvage the crop despite the moisture. The interplay between soil saturation and sudden rainfall continues to pose a risk to the overall yield of the season [1, 2, 4].

Local data suggests the climate in Minas Gerais is shifting, which may lead to more frequent disruptions of this nature ^[5]. Producers are now facing the challenge of balancing the timing of the harvest with unpredictable weather windows to avoid further loss of bean quality.