Extreme Cold: The Polar Wave Striking Argentina

This July 4, 2026, Argentina woke up under the grip of an intense polar wave. According to local media, the city of Bahía Blanca, located in the southern part of the Buenos Aires province, experienced the coldest morning of the year, reaching a minimum temperature of -4.8°C and a wind chill of -10.3°C at 7:00 a.m.

Ranking of the Coldest Cities

Bahía Blanca positioned itself as the third coldest locality in the country, surpassed only by:

• Esquel: -5°C (a city in the Patagonian province of Chubut)
• Azul: -4.9°C (a city in the center of Buenos Aires province)

National Meteorological Service (SMN) Alerts

The National Meteorological Service (SMN)—Argentina's official weather agency—issued a yellow alert for extreme cold temperatures for almost the entire national territory. Additionally, it maintained an orange alert for a specific area in the center and east of the Buenos Aires province, where the health risk is higher.

Recommendations to Combat the Cold

Given this scenario, health authorities recommend taking precautions to protect the health of the most vulnerable groups:

Extended Forecast for the Weekend

For the rest of July 4, a maximum temperature of 12°C is expected in Bahía Blanca, with a cold, sunny morning and frost, increasing cloudiness in the afternoon. By midnight, the temperature will hover around 7°C.

As detailed by meteorologist Christian Garavaglia to Meteored, precipitation would return starting Sunday over the Buenos Aires province, the Autonomous City of Buenos Aires (CABA), and the southern part of the Litoral region, with estimated maximum rainfall of 15 to 20 mm in the center of the Buenos Aires province.