Autumnal equinoxobservances in the Northern Hemisphere,vernal equinoxobservances in the Southern Hemisphere (seeSeptember 22):

Spring Day (Argentina)

Spring Day in Argentina marks the arrival of the vernal equinox in the Southern Hemisphere, celebrated with vibrant outdoor festivities and student gatherings. It symbolizes renewal as flowers bloom and temperatures warm across the country.
Observed annually on September 21, Spring Day coincides with the vernal equinox in Argentina, signaling the official start of spring. On this day, parks and plazas across the nation fill with students who celebrate 'Día de la Primavera' with picnics, live music, and sports. The tradition dates back to the early 20th century when educators sought to connect youth with nature and the changing seasons. Cities often host flower markets and exhibitions that showcase native blooms and gardening workshops. Many families take advantage of the holiday to organize outdoor gatherings under blossoming trees. Social media platforms buzz with photographs of flower crowns and colorful decorations. Spring Day encourages Argentinians of all ages to embrace renewal, outdoor activities, and environmental awareness.
Autumnal equinox vernal equinox September 22 Spring Day (Argentina)

Arbor Day (Brazil)

Brazilian Arbor Day is dedicated to planting and nurturing trees, highlighting the vital role of forests in ecology and community well-being.
Observed each year on September 21, Brazil’s Arbor Day encourages the planting and care of trees across schools, parks, and rural communities. Communities organize reforestation projects, school workshops, and municipal planting campaigns to enhance urban and native forests. The day highlights the importance of trees in preserving biodiversity, regulating climate, and preventing soil erosion. Environmental groups and government agencies often collaborate to distribute seedlings and host educational events. Families and volunteers gather to plant saplings in public spaces, fostering a sense of ecological stewardship. Arbor Day in Brazil serves as a reminder to protect natural heritage and to promote sustainable land use for future generations.
Arbor Day (Brazil)

Founder's DayandNational Volunteer Day(Ghana)

Ghana’s Founder's Day honors the country’s founding figures, while National Volunteer Day celebrates citizens’ contributions to community development.
Instituted by government decree, Founder's Day commemorates the vision and sacrifices of Ghana’s founding fathers, including Kwame Nkrumah and other leaders who led the nation to independence. Official wreath-laying ceremonies at memorials and churches pay tribute to their enduring legacy. National Volunteer Day inspires Ghanaian citizens to engage in community service projects, from health outreach to environmental clean-ups and educational support. Non-profit organizations and local authorities coordinate events that encourage teamwork and civic responsibility. Award ceremonies recognize outstanding volunteers whose efforts have made a tangible impact in their communities. Together, these observances foster national unity and highlight the importance of both historical remembrance and active citizenship. Schools and youth groups often hold workshops to instill a sense of pride and service in the next generation.
Founder's Day National Volunteer Day Ghana

Student's Day (Bolivia)

Observed annually on September 21, Student's Day in Bolivia celebrates the energy and achievements of students nationwide. Schools and universities organize cultural activities, sports events, and educational programs.
Although not an official public holiday, Student's Day in Bolivia is widely celebrated with parades, concerts, and academic competitions. The Bolivian Student Federation organizes nationwide events that foster unity and civic engagement among young people. Cultural performances and debates provide a platform for students to showcase their talents and discuss educational issues. Many schools and universities host seminars on academic innovation and student rights. Community service projects highlight the positive impact of youth in Bolivian society. The day underscores the vital role of education in the country's cultural and social development.
Student's Day (Bolivia)

Spring Day (Argentina)

Spring Day in Argentina marks the official first day of spring in the Southern Hemisphere, celebrated on September 21. Students and young people celebrate with outdoor parties, picnics, and colorful festivities.
Every September 21, Argentina welcomes the arrival of spring with Dia de la Primavera. Parks and public spaces fill with young people enjoying picnics, music, and dance. Colorful flowers are exchanged among friends as a symbol of renewal and joy. Schools frequently organize outdoor festivals and decorated floats to mark the occasion. Local cafes and street vendors offer seasonal treats and refreshments. The celebration often overlaps with Student's Day, adding an academic spirit to the festivities. Spring Day reflects Argentina's vibrant youth culture and the hope that comes with longer, warmer days.
Spring Day (Argentina)