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Official 2025–26 School Calendars: SEP Confirms Sept. 1 Start, Extremadura Opens Sept. 11

Some outlets list different winter-break return dates, with the DOF calendar serving as the reference.

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Overview

  • Mexico’s SEP published its national basic-education calendar in the DOF, setting 185 instructional days from Monday, Sept. 1, 2025 to Tuesday, July 15, 2026, with classes proceeding on Sept. 1 in the State of Mexico.
  • The schedule outlines seven official long weekends and adds CTE Friday closures across the year, with sessions slated on Sept. 26, Oct. 31, Nov. 28, Jan. 30, Feb. 27, Mar. 27, May 29 and Jun. 26.
  • Winter-break dates are reported inconsistently: Proceso cites Dec. 22, 2025–Jan. 7, 2026 with return Jan. 8, while Merca2.0 lists Dec. 22–Jan. 9 with return Jan. 12; both report Semana Santa from Mar. 30 to Apr. 10, 2026.
  • Teacher activities include a late-August intensive CTE phase and January workshops, and the national preinscription window for 2026–27 runs Feb. 3–13, 2026.
  • Extremadura’s official calendar starts most Infantil, Primaria and ESO students on Sept. 11, 2025 with staggered end dates by level, while the University of Extremadura sets Grado semesters for Sept. 11–Dec. 19, 2025 and Jan. 29–May 8, 2026.