Here are some popular events in Mexico by month:

January:

- Three Kings Day (Día de los Reyes) – celebrated on January 6th, with parades and the consumption of Rosca de Reyes.

- Feast of the Virgin of Guadalupe (Día de la Virgen de Guadalupe) – celebrated on December 12th and continuing into January, with pilgrimages to the Basilica of Guadalupe in Mexico City.

February:

- Carnival (Carnaval) – celebrated in several cities across Mexico, with parades, music, dancing, and colorful costumes.

March:

- Tianguis Turístico – Mexico's largest travel trade show, showcasing the country's tourism offerings.

April:

- Semana Santa (Holy Week) – a week-long celebration leading up to Easter, with religious processions, events, and traditional foods.

May:

- Cinco de Mayo – commemorates the Mexican army's victory over the French Empire at the Battle of Puebla on May 5, 1862, celebrated with festivals and parades.

June:

- Guelaguetza – an annual cultural festival in Oaxaca featuring traditional dance, music, food, and artisanal crafts.

July:

- Feria Nacional de la Plata – a national silver fair in Taxco, celebrating the city's silver mining heritage with exhibitions and workshops.

August:

- Day of the Dead Parade (Desfile de Día de Muertos) – held in Mexico City, featuring colorful floats, costumes, and performances to honor the deceased.

September:

- Mexican Independence Day (Día de la Independencia) – celebrated on September 16th with festivals, parades, concerts, and fireworks.

October:

- Day of the Dead (Día de los Muertos) – a traditional Mexican holiday to honor and remember deceased loved ones, with altars, offerings, and celebrations.

November:

- Mariposa Monarca (Monarch Butterfly Migration) – the annual migration of monarch butterflies to the Monarch Butterfly Biosphere Reserve in Michoacán.

December:

- Guadalupe-Reyes Marathon – a month-long celebration from December 12th to January 6th, culminating in the Feast of the Epiphany.