Weather in May will have a cold front, risk of frost, and rainfall above 100 mm, while heat and drought concern crops in central Brazil.

Written by Fabio Lucas Carvalho

Published on 30/04/2026 at 22:47

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The weather in May will be marked by a contrast between intense rain in the South, risk of frost in mountain areas, and the persistence of dry heat in producing regions, a scenario that increases concern for crops, especially second-crop corn.

The **weather in May** begins with the arrival of a cold front in Rio Grande do Sul starting this Friday, the 1st, with rains also advancing to Santa Catarina. This scenario contrasts with the persistence of heat and drought in much of the Central-West, Southeast, and Matopiba areas.

Cold front changes the weather in May in the South

The forecast indicates prolonged periods of **rain**, mainly in Rio Grande do Sul. Accumulations could exceed **100 mm in just five days**, raising concerns in the field.

Heat and drought continue in central Brazil

During the first week of the month, the weather remains hot and dry in the central Brazilian crops. This pattern is expected to persist for the next **10 days**, with low humidity and irregular return of rains until May 11.

ARTICLE CONTINUES BELOW

Frost increases concern for crops

Starting Sunday, the 5th, there is a risk of frost, especially in the mountain areas of Rio Grande do Sul and Santa Catarina. The **weather in May** could worsen the situation of crops, especially second-crop corn, subject to water restriction and productive losses.

With information from **Canal Rural**

Weather in May will have a cold front, risk of frost, and rainfall above 100 mm, while heat and drought concern crops in central Brazil.

The weather in May will be marked by a contrast between intense rain in the South, risk of frost in mountain areas, and the persistence of dry heat in producing regions, a scenario that increases concern for crops, especially second-crop corn.

Cold front changes the weather in May in the South

Heat and drought continue in central Brazil

Frost increases concern for crops

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Weather in May will have a cold front, risk of frost, and rainfall above 100 mm, while heat and drought concern crops in central Brazil.

The **weather in May** will be marked by a contrast between intense rain in the South, risk of frost in mountain areas, and the persistence of dry heat in producing regions, a scenario that increases concern for crops, especially second-crop corn.

Cold front changes the **weather in May** in the South

Heat and drought continue in central Brazil

Frost increases concern for crops

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The weather in May will be marked by a contrast between intense rain in the South, risk of frost in mountain areas, and the persistence of dry heat in producing regions, a scenario that increases concern for crops, especially second-crop corn.

Cold front changes the weather in May in the South