Mexico braces for intense monsoon rains and extreme heat across multiple states

The Mexican monsoon, active over the northwest, will bring heavy to very heavy rain, hail, strong winds and elevated wave heights from July 20‑23, 2026. The Servicio Meteorológico Nacional expects the strongest accumulations of 75–150 mm in Sonora and Chihuahua, with intense rain also forecast for Sinaloa, Durango, Baja California Sur, Zacatecas, Jalisco, Colima, Michoacán, Guerrero, Estado de México and Morelos, and scattered showers elsewhere. Temperatures above 45 °C are predicted in parts of Baja California, while much of the country will remain hot to very hot.

Protection Civil agencies have issued warnings to avoid crossing streams, stay away from low‑lying areas, and reduce travel during storms. Municipal officials in Chihuahua and Ciudad Juárez have launched preventive campaigns, distributing safety guidelines to residents.

The recent rains have also helped refill the Cutzamala water system, raising levels in its three main reservoirs and improving water supply for the Mexico City metropolitan area after severe droughts in 2024‑2025. Experts stress that despite the short‑term relief, continued water‑conservation measures remain essential.

Additionally, the Servicio Meteorológico Nacional reports the onset of the “canícula” in several northeastern and southern regions, a mid‑summer dry spell that reduces cloud cover and raises heat stress, prompting further health and agricultural advisories.