For 2027, experts estimated that from January to March, precipitation will rise in northeastern Mexico; from February to June, the number of wildfires will increase; and from April to June, rainfall will decrease in the center, south, and southeast, likely causing drought. ^[1] Specialists from the Institute of Atmospheric and Climate Change (ICAyCC) at the National Autonomous University of Mexico (UNAM) stated that the El Niño phenomenon is strengthening and could reach very strong or historic intensity by late 2026. ^[2] Specialists from the Instituto de Ciencias de la Atmósfera y Cambio Climático (ICAyCC) of the Universidad Nacional Autónoma de México (UNAM) warned that the intense 2026 El Niño phenomenon will cause increased heatwaves and droughts for the spring of 2027. ^[3] Alejandro Jaramillo Moreno recommended that all three levels of government adapt shelters for heatwaves, providing cool spaces with hydration and medical attention, and advised the population to stay hydrated and avoid sun exposure. ^[4] Experts predicted a higher number of days with poor air quality in Mexican cities, particularly in the context of 2027 forecasts. ^[5] According to projections from the National Oceanic and Atmospheric Administration (NOAA), the El Niño phenomenon will maintain its strengthening trend with the possibility of reaching historical intensity by late 2026. ^[6] Experts warned that populations in greater vulnerability, including rural areas and urban zones with high marginalization indices, will suffer the repercussions with greater severity. ^[7]