September Holidays & Observances
Month Long Observances
Week Long Observances
Days

September - Month
Latino / Hispanic Heritage Month
Cholesterol Education Month
Classical Music Month
Library Card Sign-Up Month
National Chicken Month
National Honey Month
National Literacy Month
National Rice Month
Organic Harvest Month
National Sewing Month

September - Week
National Sewing Month Home 
Sobriety Checkpoint Week
Balance Awareness Week
National Farm Animals Awareness Week
National Adult Day Care Center Week
Reye's Syndrome Awareness Week
National Singles Week
Banned Books Week
Constitution Week
National Dog Week

September - Day
September 2 - Janmashtami (India - Floating Holiday)
September 3 - Australian National Flag Day (Australia)
September 6 – Labor Day (USA)
September 7– Brazil’s Independence Day (Brazil)
September 8 - International Literacy Day
September 8 - Rosh Hashanah Begins (Floating Holiday)
September 9 - First Day of Rosh Hashanah (Floating Holiday)
September 9  - Eid al Fitr begins (Floating Holiday)
September 10 - End of Ramadan (Floating Holiday)
September 11- Patriot Day (USA)
September 12 - Carl Garner Federal Lands Cleanup Day (USA)
September 12 - Grandparents Day (USA)
September 14 – Chinese Mid-Autumn Festival (Hong Kong)
September 16 - Mayflower Day
September 16 - Stepfamily Day
September 16 - International Day for the Preservation of the Ozone Layer
September 16 – Mexico’s Independence Day (Mexico)
September 16 - Owain Glyndwr Day (Wales)
September 17 - Yom Kippur begins at sundown (Floating Holiday)
September 17 – Constitution Day & Citizenship Day (USA)
September 17- National Stepfamily Day (USA)
September 18 - First Day of Yom Kippur (Floating Holiday)
September 19 - Talk Like a Pirate Day (USA & UK)
September 20  - Respect for the Aged Day (Japan - Floating Holiday)
September 21 - International Day of Peace
September 22 - American Business Women's Day (USA)
September 22 - Chinese Mid-Autumn Festival ( Hong Kong -Floating Holiday)
September 22 - Mid-autumn Moon Festival (Taiwan- Floating Holiday)
September 23 - Autumnal Equinox (Floating Holiday)
September 24 - World Maritime Day
September 24 – Heritage Day (South Africa)
September 25 - National Day of Remembrance for Murder Victims (USA)
September 27- Family Day
September 28 – Czech Statehood Day (Czech Republic