September
108 special days in September.

Sep 1
World Alzheimer's Month
Worldwide
Sep 1
Suicide Prevention Month
Worldwide
Sep 1
Rtveli
National
Sep 1
Ginger Cat Appreciation Day
Worldwide
Sep 1
World Letter Writing Day
Worldwide
Sep 1
National Hotel Employee Day
National
Sep 1 – 3
Yogurt Day
Worldwide
Sep 1
Read A New Book Month
Worldwide
Sep 1
Knowledge Day
National
Sep 1 – 30
European Heritage Days
Worldwide
Sep 2
Vietnam Independence Day
National
Sep 2
World Coconut Day
Worldwide
Sep 2
Vietnam National Day
National
Sep 2
Pierce Your Ears Day
Worldwide
Sep 2
National Live Fearless Day
National
Sep 3
Merchant Navy Day
National
Sep 3
National Skyscraper Day
National
Sep 4
National Wildlife Day
National
Sep 4
International Taekwondo Day
Worldwide
Sep 5
International Day of Charity
Worldwide
Sep 5
International Day of the World's Indigenous Women and Girls
Worldwide
Sep 6
Unification Day in Bulgaria
National
Sep 7
Brazil Independence Day
National
Sep 7
International Day of Clean Air for Blue Skies
Worldwide
Sep 7
International Day of Police Cooperation
Worldwide
Sep 7
World Duchenne Awareness Day
Worldwide
Sep 7
Africa-CARICOM Day
Worldwide
Sep 8
International Literacy Day
Worldwide
Sep 8
World Physical Therapy Day
Worldwide
Sep 8
International Pardon Day
Worldwide
Sep 9
Technical Analysts Day
Worldwide
Sep 9
Teddy Bear Day
Worldwide
Sep 9
International Day to Protect Education from Attack
Worldwide
Sep 9
African Union Day
Worldwide
Sep 10
World Suicide Prevention Day
Worldwide
Sep 10
Swap Ideas Day
Worldwide
Sep 11
Patriot Day
National
Sep 11
National SUP Day
Worldwide
Sep 12
World Dolphin Day
Worldwide
Sep 12
Gym Day
Worldwide
Sep 12
German Language Day
Worldwide
Sep 12
National Police Woman Day
National
Sep 12
National Chocolate Milkshake Day
National
Sep 12
United Nations Day for South-South Cooperation
Worldwide
Sep 13
International Programmers' Day
Worldwide
Sep 13
Roald Dahl Day
Worldwide
Sep 13
Bald is Beautiful Day
Worldwide
Sep 13
Supernatural Day
Worldwide
Sep 13
International Day for Caves and Karst
Worldwide
Sep 14
National Sober Day
Worldwide
Sep 15
International Day of Democracy
Worldwide
Sep 15
Greenpeace Day
Worldwide
Sep 15
Dates Day
National
Sep 15 – Oct 15
Hispanic Heritage Month
National
Sep 15 – Nov 30
Truffle Days in Croatia
National
Sep 16
World Ozone Day
Worldwide
Sep 16
Mexican Independence Day
National
Sep 16
Malaysia Day
National
Sep 16
Collect Rocks Day
Worldwide
Sep 16
Mayflower Day
Worldwide
Sep 16
International Day of Science, Technology and Innovation for the South
Worldwide
Sep 16
International Day for Interventional Cardiology
Worldwide
Sep 17
World Patient Safety Day
Worldwide
Sep 17
World Manta Day
Worldwide
Sep 17
Australian Citizenship Day
National
Sep 17
Time's Up Day
National
Sep 17
Constitution Day
National
Sep 18
Chile Independence Day
National
Sep 18
World Bamboo Day
Worldwide
Sep 18
International Equal Pay Day
Worldwide
Sep 18
Global Company Culture Day
Worldwide
Sep 18
National HIV/AIDS and Aging Awareness Day
National
Sep 18
National First Love Day
Worldwide
Sep 19
International Talk Like a Pirate Day
Worldwide
Sep 19
Armed Forces Day
National
Sep 20
World Cleanup Day
Worldwide
Sep 20 – Oct 4
Fiesta de San Pacho
National
Sep 20
International Day of University Sport
Worldwide
Sep 21
International Day of Peace
Worldwide
Sep 21
World Alzheimer's Day
Worldwide
Sep 21
Software Freedom Day
Worldwide
Sep 21
Oktoberfest Opening Day
National
Sep 21
Kwame Nkrumah Memorial Day
National
Sep 21 – 27
Active Aging Week
Worldwide
Sep 22
World Rhino Day
Worldwide
Sep 22
Hobbit Day
Worldwide
Sep 22 – Oct 31
Seed Gathering Season
National
Sep 23
International Day of Sign Languages
Worldwide
Sep 23
Celebrate Bisexuality Day
Worldwide
Sep 23
National Day
National
Sep 24
South Africa Heritage Day
National
Sep 24
World Gorilla Day
Worldwide
Sep 25
World Pharmacists' Day
Worldwide
Sep 25
Comic Book Day
Worldwide
Sep 26
World Environmental Health Day
Worldwide
Sep 26
National Pancake Day
National
Sep 26
Yemen Revolution Day
National
Sep 26
International Day for the Total Elimination of Nuclear Weapons
Worldwide
Sep 27
World Tourism Day
Worldwide
Sep 27
National Chocolate Milk Day
Worldwide
Sep 28
World Rabies Day
Worldwide
Sep 28
Confucius' Birthday
National
Sep 28
Good Neighbor Day
National
Sep 28
International Day for Universal Access to Information
Worldwide
Sep 29
World Heart Day
Worldwide
Sep 29
International Day of Awareness of Food Loss and Waste
Worldwide
Sep 30
International Translation Day
Worldwide
Sep 30

