First cold front arrives in Mexico in September 2026

The National Meteorological Service reports that the first cold front of the season will arrive in Mexico in September 2026, mainly affecting the north and marking the end of the heatwave. States such as Chihuahua, Coahuila and Baja California are expected to see changes in temperature, rain and wind.

The National Meteorological Service announces that the first cold front of the season will arrive in Mexico in September 2026.

Although the exact date has not been set, it is expected that the first effects will be felt in the north of the country, affecting states such as Chihuahua, Coahuila and Baja California.

Geographic reach

Forecasts indicate that the frontal system will concentrate in northern entities: Chihuahua, Coahuila, Baja California, Nuevo León, Durango, Sonora, Zacatecas and San Luis Potosí. A drop in temperatures, rainfall, wind gusts and, in some areas, hail are expected.

End of the heatwave

The arrival of September also marks the gradual end of the heatwave, which usually ends around September 4. The duration can vary each year, but the phenomenon typically concludes before the cold front season begins.

Season duration

The cold front season will last until May 2027. The first systems usually have lower intensity, but their presence marks the start of the transition to cooler months.