Overview

• Forecasts from Inmet show most capitals above 30°C and up to 40°C in Cuiabá and parts of Tocantins, with Rio, Belo Horizonte and São Paulo reaching the low to mid‑30s.
• Inmet and civil defense agencies issued low‑humidity alerts for the Center‑West, the Federal District, Minas Gerais and São Paulo, with the Vale do Paraíba seeing readings near or below 20% and elevated fire risk.
• Inmet posted storm warnings for parts of the North and South, including Amazonas, Acre, Roraima, Rondônia, Pará, Paraná and Santa Catarina, with strong winds and potential hail in some areas.
• Short‑term outlook points to hot, dry conditions holding through the week, with Brasília near 31°C and 12% humidity and Goiás expecting broader rains to return around October 13, according to Inmet.
• Seasonal signals remain uncertain as NOAA has not confirmed La Niña despite odds above 60%, while MetSul projects October temperatures above historical averages across much of the Center‑South.