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Brazil weather: El Niño triggers record rain and storm alerts FAST-MOVING
The onset of spring in Brazil is being heavily influenced by a strong El Niño phenomenon, leading to extreme weather patterns across several regions. In Rio de Janeiro, the city has recorded its rainiest September in 29 years, with rainfall totals reaching 171.9 mm as of late September.
In the Southeast, Inmet has issued danger alerts for heavy rainfall accumulation, ranging from 50 to 100 mm, affecting São Paulo, Rio de Janeiro, Minas Gerais, and Espírito Santo. This instability is characterized by alternating periods of intense storms, lightning, and high temperatures with irregular rainfall distribution.
Southern and coastal regions are also experiencing significant shifts. Santa Catarina has faced cold air masses bringing temperatures near freezing and potential frost, while Paraná is under alert for falling temperatures across 153 municipalities. Meteorologists note a high probability that this El Niño event will be one of the most intense on record, potentially lasting until early 2027.
Entities
Brazil · Civil Defense · Climatempo · Defesa Civil · Defesa Civil do Estado de São Paulo · El Niño · El Niño · Epagri/Ciram · INMET · INPE · Instituto Nacional de Meteorologia · NOAA
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 4 SOURCES] There is a probability greater than 90% that El Niño will reach a very strong category. alotatuape.com.br · br.paipee.com · sitebarra.com.br
- [○ 1 SOURCE] Santa Catarina is expected to see above-average rainfall between September and November. portalrbv.com.br
- [○ 1 SOURCE] El Niño is expected to increase rainfall in the South and Southeast regions of Brazil.
- [○ 1 SOURCE] El Niño is expected to increase drought in the North, Northeast, and Central-West regions of Brazil.
- [○ 1 SOURCE] The 2026 spring will be heavily influenced by a very strong El Niño. portalrbv.com.br
- [● 3 SOURCES] There is a 75% chance this El Niño event will be the most intense recorded since 1950. br.paipee.com · litoralmania.com.br
- [● 6 SOURCES] The El Niño phenomenon is expected to influence weather patterns during the spring season in Brazil. alotatuape.com.br · br.paipee.com · itapevinoticias.com.br · litoralmania.com.br · revistafactual.com.br · +1 more
- [● 2 SOURCES] A cold air mass is expected to bring low temperatures and potential frost to Santa Catarina. correiodovale.com.br · litoralmania.com.br
- [● 2 SOURCES] The spring season in São Paulo is expected to feature irregular rainfall and periods of intense heat. alotatuape.com.br · br.paipee.com
- [○ 1 SOURCE] A weather system is moving from São Paulo toward Rio de Janeiro, Minas Gerais, and Espírito Santo. www.estadao.com.br
- [● 2 SOURCES] The Civil Defense of São Paulo has issued an alert for heavy rainfall. alotatuape.com.br · br.paipee.com
- [○ 1 SOURCE] Sea surface temperatures in the Niño 3.4 region were 1.8°C above average in August. litoralmania.com.br