Complete list of worldwide holidays, observances, and special events in September 2026
Complete list of holidays and observances around the globe
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UN observance that recognizes the role of charity in alleviating humanitarian crises and human suffering. The day was established to commemorate the death anniversary of Mother Teresa.
UN observance, not a public holiday
Federal holiday in the United States honoring the American labor movement. It is celebrated on the first Monday in September and marks the unofficial end of summer.
Federal holiday in the United States
National holiday in Brazil commemorating the declaration of independence from Portugal on September 7, 1822. The day is celebrated with parades, concerts, and other patriotic events.
National holiday in Brazil
UNESCO observance that highlights the importance of literacy to individuals, communities, and societies. The day raises awareness about the challenges of illiteracy and promotes efforts to increase literacy rates worldwide.
UNESCO observance, not a public holiday
Commemorates the admission of California as the 31st state of the United States on September 9, 1850. The day is observed as a legal holiday in California.
State holiday in California
Raises awareness about suicide and suicide prevention. The day encourages understanding about suicide and highlights effective preventive measures.
Observance, not a public holiday
Observance in the United States that honors the memory of those who were killed in the September 11 attacks in 2001. The day is marked by a moment of silence at 8:46 a.m. EDT, the time the first plane struck the North Tower of the World Trade Center.
Observance, not a public holiday
Encourages people to offer encouragement and positive messages to those around them. The day was first observed in 2007 and was created by the Encouragement Foundation at Harding University in Searcy, Arkansas.
Observance, not a public holiday
Recognizes the positive contributions of programmers to society. The day is celebrated on the 256th day of the year (September 13 in non-leap years and September 12 in leap years) because 256 (2^8) is the number of distinct values that can be represented with an 8-bit byte.
Observance, not a public holiday
UN observance that promotes and upholds the principles of democracy. The day provides an opportunity to review the state of democracy in the world.
UN observance, not a public holiday
National holiday in Mexico commemorating the beginning of the Mexican War of Independence against Spain on September 16, 1810. The day is celebrated with parades, concerts, and other patriotic events.
National holiday in Mexico
Encourages people to talk like pirates for fun. The day was created in 1995 by John Baur and Mark Summers and gained popularity after being mentioned by columnist Dave Barry in 2002.
Observance, not a public holiday
UN observance dedicated to world peace, and specifically the absence of war and violence. The day was established in 1981 by the United Nations General Assembly.
UN observance, not a public holiday
Marks the first day of autumn in the Northern Hemisphere and the first day of spring in the Southern Hemisphere. The equinox occurs when the Sun crosses the celestial equator, resulting in nearly equal amounts of daylight and darkness worldwide.
Astronomical event, not a public holiday
National holiday in Saudi Arabia commemorating the renaming of the Kingdom of Nejd and Hejaz to the Kingdom of Saudi Arabia in 1932. The day is celebrated with various cultural and entertainment activities.
National holiday in Saudi Arabia
Celebrates linguistic diversity in Europe and promotes language learning. The day was established by the Council of Europe in 2001.
Observance, not a public holiday
Raises awareness about the role of tourism within the international community and demonstrates how it affects social, cultural, political, and economic values worldwide. The day was established by the United Nations World Tourism Organization in 1980.
UN observance, not a public holiday
Encourages people to be good neighbors by making connections with those who live in their neighborhood. The day was created in the early 1970s by Becky Mattson of Lakeside, Montana.
Observance, not a public holiday
Celebrates the work of language translation professionals. The day coincides with the feast of St. Jerome, the Bible translator who is considered the patron saint of translators.
Observance, not a public holiday
Month-long awareness campaigns and celebrations
Encourages Americans to take steps to prepare for emergencies in their homes, businesses, schools, and communities. The month is sponsored by the Federal Emergency Management Agency (FEMA).
Raises awareness about suicide prevention, reduces stigma around the topic, and encourages those who are struggling to seek help. The month includes World Suicide Prevention Day on September 10.
Celebrates the histories, cultures, and contributions of American citizens whose ancestors came from Spain, Mexico, the Caribbean, and Central and South America. The observation starts on September 15, the anniversary of independence for Costa Rica, El Salvador, Guatemala, Honduras, and Nicaragua.
Raises awareness and challenges the stigma that surrounds dementia. The month includes World Alzheimer's Day on September 21.
Raises awareness about childhood cancer, which remains the leading cause of disease-related death for children. The month encourages support for children with cancer and their families.
Celebrates honey and the honey industry. The month was established by the National Honey Board to promote honey and educate consumers about the benefits and uses of honey.
Encourages people to sign up for a library card and highlights the value of libraries. The month is sponsored by the American Library Association.
Celebrates the piano, its music, and its players. The month encourages people to learn to play the piano and appreciate piano music.
Special weeks celebrated during September
Recognizes the role of assisted living in caring for America's seniors and individuals with disabilities. The week provides an opportunity to celebrate the individuals who live and work in assisted living communities.
Honors truck drivers for their hard work and commitment to one of the nation's most demanding and important jobs. The week recognizes the contributions truck drivers make to the economy and society.
Promotes the value of rehabilitation, highlights the capabilities of people with disabilities, and recognizes the work of rehabilitation professionals. The week aims to educate people about the benefits of rehabilitation.
Celebrates the freedom to read and highlights the value of free and open access to information. The week brings together the entire book community in shared support of the freedom to seek and express ideas.
Free printable September calendars with holidays
Standard monthly calendar with all major holidays and observances marked. Perfect for planning your month.
DownloadMonthly calendar with extra space for notes and reminders. Ideal for tracking appointments and tasks.
DownloadHorizontal layout calendar with holidays. Great for desk planning or wall display.
DownloadCreate a personalized September 2026 calendar with your own events, holidays, and design preferences.