Rio Hits 40.1°C on Christmas, City Stays at 'Calor 3' Heat Level

Overview

• Alerta Rio measured a maximum of 40.1°C at the Guaratiba station, the city's hottest day since October 6.
• The municipal protocol remains at Calor 3, signaling sustained heat with highs roughly between 36°C and 40°C.
• State health officials alerted all 92 municipalities and urged hydration, light clothing, sunscreen, and avoiding outdoor exertion from late morning to midafternoon.
• Forecasts indicate clear to partly cloudy skies, weak to moderate winds, no rain, and elevated temperatures through December 29.
• Beaches were crowded from Copacabana to Ipanema and Arpoador, while Inea reported 15 coastal points as unsuitable for bathing.