São Paulo dawns under heavy fog this Friday (26); see forecast

The city of São Paulo dawned, this Friday (26), with the sky covered by fog, drizzle and with thermometers reading 12ºC. According to the weather forecast, the day should continue to be cloudy and with light rain.

According to the state's Civil Defense, the combination of high relative humidity and low temperatures recorded in the capital favored the formation and persistence of fog, especially in higher elevations.

The fog that extends in the early hours of the morning compromises the visibility of the landscape, which can be below 1 km at times, and São Paulo residents must be careful in traffic when traveling through the city streets.

With the gradual warming throughout the morning, the tendency is for the fog to dissipate in the next few hours. From 10am onwards, the thermometer should register an increase in temperature, with the maximum reaching 19ºC.

According to Climatempo, air quality should remain good, with relative humidity reaching 99%. For this Friday, 5.6 mm of rain is expected throughout the day and winds should not exceed 5 km/h.

CNN Brasil contacted Congonhas and Guarulhos airports, which reported that there was no impact on operations due to the fog.

Forecast for the weekend
After days of record low temperatures, thermometers are expected to rise from the weekend onwards and there is no rain forecast for the two days in the city of São Paulo.

On Saturday (27), the temperature varies between 14ºC and 22ºC, with a minimum until 6am and a maximum reaching 3pm. Air humidity should also decrease during the sunniest period, which occurs between 12pm and 6pm.

On Sunday (28), the day should be sunny with some clouds. The thermal sensation, however, should be low, varying between 25ºC and 18ºC.

Lowest temperature in 30 years
The city of São Paulo recorded, on Thursday (25), the record for the lowest maximum temperature for the month of June in 30 years. According to Civil Defense, the capital of São Paulo reached 13.4°C.

The data released was recorded at the Mirante de Santana station, in the North Zone of the Capital (INMET). The record comes amid the first cold wave of the winter of 2026 in Brazil.

Cold wave in Brazil
On Wednesday (24), the phenomenon, caused by an intense mass of polar air, recorded the lowest temperature of the year in the country at -9.2°C in Bom Jardim da Serra (SC). According to Climatempo, capitals such as Florianópolis, Curitiba and Rio Branco, for example, faced the coldest dawn of the year.

The center of the cold air mass, a region where temperatures are lower, passed over the South and part of the Southeast on Thursday (25).

*Under the supervision of Carolina Figueiredo

Source: CNN