The city of Rio de Janeiro is currently undergoing a staggering heatwave, with temperatures soaring past 40 degrees Celsius for several consecutive days. The forecast from the city's meteorological system predicts highs up to 42°C, leaving residents grappling with the harsh conditions.
On Monday, November 17, the city reached 44°C, the highest temperature recorded since 2014. Sunday saw temperatures spike at 40.4°C. This sudden surge has pushed Rio to declaration of its Level 4 heat alert, the second highest on the city's scale, which has been instituted since June 2024. This marks the first time Rio has hit this level of warning, indicating extreme temperatures for over three consecutive days.
The conditions are attributed to a high-pressure system over the Atlantic Ocean, keeping the scorching temperatures consistent, with predictions indicating the heat will persist until at least Friday, November 21.
Mayor's office has laid out health recommendations due to these elevated temperatures. They are advising the public to increase fluid intake, particularly water and natural fruit juices, even before feeling thirsty. Light meals featuring fruits and salads are encouraged, and individuals are warned to avoid sugary drinks and alcohol, which can exacerbate dehydration.
Residents are advised to wear light clothing, avoid direct sun exposure from 10 Am to 4 PM, and utilize available cooling stations throughout the city, as well as hydration stations where water is accessible. Notably, physical education classes within schools are required to be conducted indoors to protect students from the heat.
The alarming report includes the unexpected reading of 52°C recorded on street thermometers in the Tijuca neighborhood, which compounded the sensation of discomfort felt by residents. This unprecedented heat event has led to immediate action from the local government, including the cancellation or rescheduling of significant outdoor events to offset the risk of heat-related illnesses.
The municipal health office is also promoting tips to maintain wellness during this heatwave. People are reminded to use sunscreen to protect their skin from UV rays and to shield their children with hats for additional protection.
Due to the current meteorological conditions, humidity levels are expected to fall between 21% and 30% during peak hours, contributing to the heightened risk of dehydration and heat-related illnesses. The municipality encourages the use of saline solutions for the eyes and nostrils to prevent dryness.
The Brazilian Institute of Meteorology, known as INMET, notes the continued dry spell as Rio has gone without rain since February 1 of this year. With this outlook, no immediate reprieve from the heat is expected.
Looking ahead, the weather forecast remains grim, with predicted low temperatures hovering around 21°C to 22°C, and highs maintaining around 37°C to 40°C through the week. Humidity levels are projected to stay high, around 90%, leading to oppressive heat and discomfort as residents navigate through this extreme environment.
Rio de Janeiro is facing one of its most challenging heat crises as local agencies work to mitigate the impact by urging vigilance and preparation among the populace. Safety measures and monitoring remain key as authorities continue to assess and respond to the changing weather events.