Rain is forecast to intensify across several areas of Brazil during the weekend of April 18–20, 2026 [1, 3].
These weather shifts coincide with the Feriadão de Tiradentes holiday, potentially impacting travel and outdoor activities for millions of residents across the North, Northeast, and South regions [1].
In the South, an advancing cold front associated with an extratropical cyclone is expected to bring stronger precipitation and a significant drop in temperature [3]. Reports on the timing of this front vary; some forecasts indicate the weekend begins with sunny skies before the front arrives on Monday and Tuesday, while others predict intense rain throughout the weekend [1, 3].
The North and Northeast regions are also expected to see an increase in rainfall [1]. These patterns contrast sharply with the Southeast, where weather is predicted to remain mostly sunny and warm.
In Belo Horizonte, located in Minas Gerais, the forecast remains stable. The city is expected to see sunny conditions with a maximum temperature of 29 °C [2].
The holiday period, which officially begins on Saturday, April 18, 2026 [1], will see these disparate weather systems moving across the country simultaneously. While the Southeast enjoys high temperatures, the South faces the risks associated with the cyclone-linked cold front [3].
“Rain is forecast to intensify across several areas of Brazil.”
The divergence in weather patterns across Brazil highlights the country's vast climatic volatility during the April transition. The presence of an extratropical cyclone in the South increases the risk of flash flooding and infrastructure damage, while the stable high-pressure system in the Southeast ensures a typical autumn climate for the holiday period.
