Here are some popular events in Barranquilla, Atlántico Department, Colombia by month:

January - Carnaval de Barranquilla: One of the most famous carnivals in the world, celebrated in February or March but with pre-carnival events in January.

February/March - Carnaval de Barranquilla: The main carnival festivities take place during this month, featuring colorful parades, music, dancing, and cultural performances.

April - Semana Santa (Holy Week): This religious celebration includes processions, reenactments of biblical events, and traditional events in churches throughout the city.

June - Festival del Frito Barranquillero: A celebration of local fried foods and culinary traditions, with food stalls, music, and cultural activities.

July - Festival de Orquestas del Carnaval de Barranquilla: An event showcasing live music from local orchestras and performers, a precursor to the main carnival celebrations.

August - Festival Internacional de Cine de Barranquilla: A film festival that highlights international and Colombian cinema, with screenings, workshops, and special events.

September - Feria de Belleza, Salud y Bienestar: A health and wellness fair featuring exhibits, workshops, and activities related to beauty, health, and well-being.

October - Festival de Teatro Estudiantil: A student theater festival featuring performances by local schools and theater groups, promoting youth participation in the arts.

November - Festival del Dulce y del Postre: A festival dedicated to sweets and desserts, showcasing traditional Colombian treats and culinary creations.

December - Feria de Navidad: A Christmas fair featuring holiday decorations, gifts, food stalls, and festive activities for visitors and locals to enjoy.