Overview

• The city marked its hottest day of 2025 on Monday, with CGE reporting 34.4°C and Inmet’s Mirante de Santana station later measuring 35.1°C.
• São Paulo’s Municipal Civil Defense declared a citywide state of attention for low relative humidity at 12:20.
• Vale do Paraíba cities set yearly heat records, including Taubaté at 36.6°C and Cachoeira Paulista at 37.5°C, with desert-like humidity as low as 10%–11% in several towns.
• Inmet forecasts a steep drop on Tuesday in the capital to 16°C–22°C, followed by cooler days through Friday with highs near 16°C–18°C.
• CGE projects isolated light rain or drizzle in the city Tuesday, while Climatempo expects the heaviest and most frequent showers in the extreme south and along the coast, with gusts around 50 km/h as clouds increase.