One of the most feared climate phenomena on the planet is advancing over Brazil with the risk of suffocating heat, chaotic rains, severe drought, and impacts that could disrupt the country in 2026.

Written by Noel Budeguer

Published on 14/04/2026 at 10:41

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The abnormal warming of the Pacific is already raising alarms for changes in Brazilian climate in the coming months, with impacts on agriculture, water supply, and planning for a more unstable second half of the year.

Brazil may enter a new phase of climate attention as early as May. The trend is for the El Niño to advance, with rising temperatures and changes in rainfall patterns across various regions of the country.

In practice, this could mean more intense heat waves, flooding in the South, irregular rainfall in the Southeast and Central West, as well as stronger drought in the North and Northeast. The impact spreads and also affects agriculture.

What changes with the arrival of El Niño in Brazil

The El Niño occurs when the surface waters of the Pacific Ocean, along the equatorial line, become warmer than normal. This alters wind circulation and affects the climate in different parts of the planet.

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May opens the window and August increases the risk

The forecast indicates a chance of occurrence as early as May. In the quarter of June, July, and August, the possibility of consolidation reaches 62% and continues to rise during the second half of the year.

Starting in August, the scenario becomes even stronger, with a probability exceeding 80% until the end of 2026. This raises the alert for persistent heat and more extreme weather events.

According to data released by NOAA, the U.S. agency for climate and oceans, the warming of the Pacific is already indicating an important change.

This movement reinforces the risk of heat waves, as well as opening the door for periods of irregular rainfall in the Southeast and Central West. In the South, concerns grow with storms and the possibility of flooding.

In the North and Northeast, the advancement of the phenomenon increases the chance of severe drought. States such as Maranhão, Tocantins, Piauí, and Bahia are among the most sensitive to this type of impact.

South may have excess rain and Northeast enters a zone of higher pressure

In the South, the combination of above-average rainfall and already moist soil can increase the risk of flooding and disruptions even in winter, with a broader effect between spring and summer.

In the Northeast, the scenario points to less rain and greater difficulty in the natural storage of water. This imbalance puts pressure on cities, rural areas, and reservoirs over the coming months.

Agriculture comes into focus with losses in planting and harvesting

**Severe drought, collapsing reservoirs, and cracked soil come into focus in Brazil with the advance of one of the planet’s most feared climatic phenomena throughout 2026.**

The reduction of rainfall in the North and Northeast compromises crops that depend on soil moisture. The problem weighs more heavily on non-irrigated crops and can hinder planting and the initial development of plants.

In the South, excessive rain saturates the soil and makes it difficult for machinery to enter the fields. In critical phases, such as flowering and grain filling, productivity drops and the final quality also suffers.

Spring and summer may concentrate the broader impact

In the Midwest and Southeast, the phenomenon may also increase the frequency of dry spells in spring and early summer. This favors failures at the beginning of the crop cycles such as soybeans and corn.

There is also the possibility of a Super El Niño in 2026, but this scenario remains a low-probability hypothesis by the end of the analyzed period. Nevertheless, the risk is already changing climate and production planning.

The advance of El Niño puts Brazil in front of a more sensitive second semester, with above-average heat and unevenly distributed rainfall. The effect is not limited to the weather map and reaches the fields, cities, and the daily lives of the population.

With a 62% chance in the June, July, and August quarter and a probability above 80% starting in August, the phenomenon gains weight in forecasts and puts pressure on the region.

One of the most feared climate phenomena on the planet is advancing over Brazil with the risk of suffocating heat, chaotic rains, severe drought, and impacts that could disrupt the country in 2026.

The abnormal warming of the Pacific is already raising alarms for changes in Brazilian climate in the coming months, with impacts on agriculture, water supply, and planning for a more unstable second half of the year.

What changes with the arrival of El Niño in Brazil

May opens the window and August increases the risk

South may have excess rain and Northeast enters a zone of higher pressure

Agriculture comes into focus with losses in planting and harvesting

Spring and summer may concentrate the broader impact

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One of the most feared climate phenomena on the planet is advancing over Brazil with the risk of suffocating heat, chaotic rains, severe drought, and impacts that could disrupt the country in 2026.

The abnormal warming of the Pacific is already raising alarms for changes in Brazilian climate in the coming months, with impacts on agriculture, water supply, and planning for a more unstable second half of the year.

What changes with the arrival of El Niño in Brazil

May opens the window and August increases the risk

South may have excess rain and Northeast enters a zone of higher pressure

Agriculture comes into focus with losses in planting and harvesting

Spring and summer may concentrate the broader impact

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