Overview

• President Claudia Sheinbaum delivers her First Informe de Gobierno on 1 September 2025.
• The Congress of the Union opens its first ordinary period of sessions on the same day.
• The SEP’s 2025–2026 school year begins on 1 September for preescolar, primaria and secundaria.
• Core independence observances this month include the Grito on 15 September, the anniversary of the start of the struggle on 16 September and the consummation on 27 September.
• September’s markers also include Banxico’s 1925 inauguration, the 1969 opening of Mexico City Metro Line 1 and the 19 September National Day of Civil Protection with the nationwide Mega Simulacro.