But some states of Mexico, especially in the northwest, were exposed to more than 100 days of intense heat, the report states. Overview of regions and cities 2024.
While in some southern entities, between 60 and 80 hot days were recorded, that is, days with maximum air temperatures exceeding 35 degrees Celsius.
From 2041 to 2060, people in tropical regions are expected to endure an additional 40 to 60 hot days per year. For Mexico, a national average of 34 additional hot days annually is calculated.
“The 20 regions projected to be the most affected, and home to more than 29 million people, are in Australia, Colombia and Mexico,” warns the OECD.
States with the highest temperature increase
Air temperatures rose, on average, 1.4 degrees Celsius last year across major OECD regions.
However, nine states in the country exceeded that figure. Tamaulipas, Querétaro, Coahuila, Guanajuato, Zacatecas, San Luis Potosí, Chihuahua, Aguascalientes and Durango increased their air temperatures between 1.5 and up to 1.76 degrees Celsius above their temperatures observed between 1981 and 2010.
Except for the cold and polar regions of the OECD, where the temperature increased up to 2 degrees Celsius, eight of those states in the country are among the small regions with the greatest increase in temperature, with 1.5 degrees Celsius above.
“The global average temperature in 2023 was just 1.5 degrees Celsius higher than the pre-industrial level of 1850-1900, something that was not expected until 2045,” the report notes.
In the rest of the states of Mexico, the temperature increased between 0.39 and 1.4 degrees Celsius. With the exception of Baja California, which recorded a decrease of 0.16 degrees Celsius during 2023.
